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BMW E39 Automatic Transmission Fail Safe
 
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Pelican Technical Article:

BMW E39 Automatic Transmission Fail Safe

Kerry Jonsson

Time:

3 hours3 hrs

Tab:

$200

Talent:

*****

Tools:

DVOM, Allen sockets, screwdrivers, lab scope, back probes, test light

Applicable Models:

BMW 525i Sedan/Wagon (2001-03)
BMW 528i Sedan/Wagon (1997-00)
BMW 530i Sedan (2001-03)
BMW 540i Sedan/Wagon (1997-03)

Parts Required:

Automatic transmission ECU

Hot Tip:

Disconnect battery and wait five minutes before unplugging ECUs

Performance Gain:

Remedy Transmission Fail Safe warning

Complementary Modification:

Replace transmission fluid

CLICK HERE FOR REPAIR PARTS FOR THIS ARTICLE

CLICK HERE FOR BMW E39 PARTS

In this tech article I will explain what it means when FAIL SAFE is displayed via your instrument cluster. I will also give you some tips on diagnosing transmission faults, mechanical and electrical. The diagnostic steps used in this article to verify a faulty transmission ECU are advanced, however you can learn a lot from the process and help answer your questions when this problem arises for you. Remember when working with electronic control modules, always disconnect the battery before unplugging or plugging one in and do not expose them to static electricity.

The automatic transmission in BMW E39 models is electronically controlled and is able to adapt fluid pressure and shift points over times as parts wear. The ability to adapt shift points depending on pressure and slip extends the lifetime of your transmission. What this means for you if you have a FAIL SAFE message (indicating the transmission has entered the emergency program) is that the trans ECU has been adapting the transmission to maintain a normal feel up to the point where it could no longer adapt and reached a fault limit. Once a fault limit is met, the trans ECU puts the trans in FAIL SAFE or limp mode. When a malfunction occurs within the transmission, FAIL SAFE will prevent unintended gear shifts / slipping.

The following occurs in FAIL SAFE mode: All shift solenoids are de-energized via TCM internal relay. The pressure regulation solenoid is de-energized resulting in maximum line pressure. The torque converter clutch is de-activated. The reverse lockout function is cancelled. Shift lock solenoid is de-energized. Fault indicators are active (FAIL SAFE displayed in instrument cluster)

The message location or indicator varies depending upon model, year and cluster type. High version instrument cluster will display a message in the driver information display. Vehicles with low version clusters will display a fault symbol in the cluster. During failsafe mode the transmission will be shifted into a higher gear to allow the vehicle to be driven to a shop. Depending upon application, the transmission will shift into 3rd or 4th gear on a four speed, and 4th or 5th gear on a five speed. For example the A5S360R transmission will go into 5th gear when there is a mechanical malfunction and 4th when there is a power failure to the TCM, (this is a key note to remember when diagnosing). Since pressure regulation ceases, the shift to failsafe mode will be abrupt or harsh, unless the transmission is already in the failsafe gear. The check engine light will also be illuminated by the DME.

Always check the DME and trans ECU for fault codes. See our article on how to read DME fault codes. If you receive a fault code for transmission slip or gear ratio, your problem is likely that the transmission has reached it adaptation limit. Start by checking the fluid level and condition. If your transmission was shifting harsh before the fault, it could be worn out, for example worn clutches or hard seals. Always check that your shift linkage is properly adjusted before condemning your transmission.

When diagnosing an issue keep the following in mind:

Shift quality issues consist of harsh up or down shifts, improper shift points and erratic shifting. These complaints could be related to electronic / software issues or hydraulic / mechanical problems. As with most concerns, check the transmission fluid level and condition as well.

Before digging too deep on delayed upshift issues, make sure you consider when this occurs. It could be normal operation, such as the warm-up phase program. Always check front tires for proper inflation pressures, correct size and matching brand and model. Also check for uneven tire wear. Variations in front tire size from left to right can activate the curve recognition feature. The TCM will interpret the difference in wheel speed signals as being a turn and suppress (or delay) upshifts.

Slipping is usually associated with a fault code. Be sure to check the transmission fluid level and condition. Then check the trans ECU and DME for fault codes.

Noises and vibrations require a good visual inspection. Look for loose transmission or engine mounts. Check the driveshaft, drive axles, center bearing and driveshaft flex-disc. Also check the lateral alignment of the driveshaft.

No forward or reverse gear, Start by checking transmission fluid level and note the fluid condition. Inspect for leaks and external transmission damage.

When investigation transmission leaks, be sure to verify that the suspected leak is actually transmission fluid. Engine oil, hydraulic and brake fluid can be mistaken for a transmission leak. Check the transmission cooler lines, transmission cooler and transmission pan gasket. Try to locate the source of the leak. Do not make any major repairs until the technical hotline is contacted.

Fault Codes - Perform a complete vehicle scan on all vehicle systems. It is important to check all systems in the event that a related system is causing the transmission fault. Always record the fault codes and fault conditions.

This is the warning message you will see when there is a fault with the automatic transmission.
Figure 1

This is the warning message you will see when there is a fault with the automatic transmission. FAIL SAFE means the transmission is in limp mode, in limp mode you only have one gear and no torque converter lock up. If you see this message, pull over and have the vehicle towed to where you can work on it, unless it is a short drive. The BMW E39 I received this message on was stuck in fourth gear. Do you remember from the earlier part of this article what that means? That means it is an electronic issue with the ECU (BMW describes it as power failure). This means I am likely chasing an electrical issue. So I can skip all my tips from above on dealing with mechanical issues.

First thing I did was try to scan the transmission ECU for fault codes.
Figure 2

First thing I did was try to scan the transmission ECU for fault codes. I received no communication. Telling me the module was not responding. I then checked the DME for fault codes and I had a fault for no CAN signal from the trans ECU. This fault code also confirms the trans ECU is offline. The scan tool uses one bus circuit to communicate with the trans ECU, the DME uses another called the CAN bus. Since the trans ECU was not responding on both, this told me it probably wasn't a short in the one of the bus circuits.

Next I check the instrument cluster for faults.
Figure 3

Next I check the instrument cluster for faults. It also had a message for no communication with the trans ECU. Now I am ready to start testing the electrical circuit. Start by removing the engine covers.

Then loosen the four 4mm Allen fasteners for the E-box lid and remove it.
Figure 4

Then loosen the four 4mm Allen fasteners for the E-box lid and remove it.

Next, remove the small Phillips head screw (green arrow) from the trans ECU electrical connector.
Figure 5

Next, remove the small Phillips head screw (green arrow) from the trans ECU electrical connector. Disconnect the battery, wait five minutes after disconnecting. See our tech article on battery replacing and reconnecting. Pull the trans ECU up and out of the E-box. Then disconnect electrical connector by opening metal lever and pulling connector off. Then remove connector from black plastic housing. Reconnect the battery. See our tech article on battery replacing and reconnecting.

First I check that the trans ECU is getting good battery supply voltage.
Figure 6

First I check that the trans ECU is getting good battery supply voltage. I load the circuits with an incandescent test light to check for voltage drop and there is none. I do this on all three battery supply voltage pins. On my vehicle, it was Pin 26, 54 and 55.

Then I check that the trans ECU is getting good ground supply.
Figure 7

Then I check that the trans ECU is getting good ground supply. I load the circuits with an incandescent test light to check for voltage drop and there is none. I do this on all three ground supply pins. On my vehicle, it was Pin 6, 28 and 34. Disconnect the battery, wait five minutes after disconnecting. Then reconnect the trans ECU connector. Reconnect the battery. See our tech article on battery replacing and reconnecting.

Next I use my scope to check the CAN bus signal.
Figure 8

Next I use my scope to check the CAN bus signal. It is good. You can also use a DVOM to confirm the voltage is OK, however it cannot tell you signal integrity. Expect can DVOM voltages to be about 2.4 for CAN HI and 2.3 for CAN LOW, both will be about 2.5 volts. The CAN pins were 85 and 86. I also used my scope to check the diagnosis data line to the trans ECU, the square wave was present and when I requested communication I received the normal blip from the scan tool and no response from the trans ECU. The diagnosis line was on pin 88, (the wiring diagram noted it on PIN 1, however this was a mistake)

At this point I was feeling good about the vehicle needing a new trans ECU.
Figure 9

At this point I was feeling good about the vehicle needing a new trans ECU. All the power and grounds were good as were the bus lines. Next step was to find a replacement ECU using the part numbers (green arrows) from the faulty one. Once the new trans ECU was installed, the vehicle was back to normal. No FAIL SAFE message and once again shifting like a high mileage E39. This table notes the control module differences between transmission models. Control System Transmission Coding Programming TCM Type GS 1.26 GS 1.27 GS 1.29 4HP22 EH (Early E7) 4HP22/24 EH (Late E-7 and E-9) Grounding pins in Harness. (Early E-7 Only) TCM ordered for specific application. Coding not needed. Replaceable EPROM Replaceable EPROM 35 Pin 35 Pin GS 7.3 GS 7.32 GS 7.11 GS 8.32 A5S310Z (5HP18) TCM ordered for specific application. Coding not needed. Replaceable EPROM 88 Pin GS 8.60 GS 8.60.4 A5S325Z (5HP19) Coding done when Programmed Flash Programming (EEPROM) 134 Pin SKE GS 8.55 GS 8.60.2 A5S440Z (5HP24) Coding done when programmed Flash Programming (EEPROM) 88 Pin up to 98 (E38 M62) 134 Pin SKE from 98 GS 9.2 GS 9.22 GS 9.22.1 GS 8.60.3 A5S560Z (5HP30) A5S560Z (5HP30) (E38 M73TU) Coding done when programmed. Replaceable EPROM Flash Programming (EEPROM) 88 Pin 134 Pin GS 4.14 GS 4.16 A4S310R (THMR-1) TCM ordered for specific application. Coding not needed. Replaceable EPROM 55 Pin GS 8.34 A4S270R (THMR-1) TCM ordered for specific application. Coding not needed. Replaceable EPROM 88 Pin GS 20 A5S360R A5S390R Coding done when programmed Flash Programming (EEPROM) 134 Pin SKE

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Comments and Suggestions:
lost dad help! Comments: well that cleared up that thank you. one more? can some trans fault codes be viewed in the dash display? son said trans only in one gear and hard reverse no safe mode on dash how can this be? sorry two?
November 30, 2016
lost dad help! Comments: Son bought 97 540i e39 smokes excessive vac indicate pcv diaphragm blown also in transfailsafe don't know what gear it's in clunks into reverse ? will bad diaphram in pcv efect trans operation in any way told him to clean wheel sensers and change pcv to start any info on this is welcome.
November 28, 2016
  Followup from the Pelican Staff: PCV will not cause issues with the transmission. Likely two issues. I would start by checking the vehicle for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
Westyyyy Comments: Hey i have a 2000 540I with the classic trans failsafe thing. got told from the guy i got it off that the computer is fryed and the auto trans needs replacing. just wondering if it could be an easy fix like low trans fluid. also could you simplify what the attached photo means. until recently car was stuck in what seemed 3rd or 4th but after i think it overheated cant quite tell instrument cluster is broken its stuck in what feels like the top gear and the trans is slipping... could it just be low fluid? or something a lot worse? cheers. :
November 19, 2016
  Followup from the Pelican Staff: You can try the fluid, check the level. if in limp, most likely a worn transmission. - Nick at Pelican Parts  
Sal Comments: After having engine replaced i end up with failsafe immediately starting the car. Keep in mind i never had any transmission issues before engine swap.

Scan car with autologic i get 2 codes:
034 22 Transmission fluid temperature sensor
083 52 Control unit, internal fault 4 FET P0700, P1746

So i replace transmission temp sensor which is part of the harness in the transmission oil pan along with new fluid and filter. This fixes both fault codes but now i am getting a fault code for pressure regulator solenoid 3 also referred to as EDS 3

I dont understand why i did not have this fault before. Anyways i go ahead and have a friend that owns a tranny shop replace eds 3 with a used part he had in stock from old cores. no charge for me but still getting fault for eds 3 so i go ahead and replace trans control module and reprogram to no avail.
November 15, 2016
  Followup from the Pelican Staff: If you have a control module internal fault, the control module is faulty. No way around it. Confirm it has good power and ground, then replace it. Possible something was shorted during the repair. I would check for pinched or damaged wiring as well, before replacing the control module. - Nick at Pelican Parts  
Mike Comments: Hi! I have a 2110 540i with 155,000 miles, all mine. Recently after driving in stop and go driving for 30+ minutes, the transmission downshifts really hard. Manual shift works only in 1,2, and third. No dashboard indication of problem. I have learned that if I turn the car off for a minute and back on, it goes back to normal but only for a while. Mechanic is stumped. Changed fluids. Gets no codes even when the transmission is not working properly. Don't know where to go from here?
November 15, 2016
  Followup from the Pelican Staff: Have your mechanic monitor trans pressure during the hard shift. It may be bleeding off due to an internal leak. Causing the hard shift. - Nick at Pelican Parts  
nicdev73 Comments: Hello there, great site!
I have a 97 540i - 100k & good history up to 98k 2 yrs ago
Was holding gears last week not changing 3 to 4, 4 to 5 after kickdown and now trans failsafe message came on twice in 1 x week. Stopped car, turned off and on and message disappears. Car was also lurching / braking itself with gearing as coming to a stop recently at very slow speeds. Joined RAC recently so can call them at weekend to give me codes, but any advice from comments so far please? Have stopped driving it.
November 15, 2016
  Followup from the Pelican Staff: This could be a slip caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip. I would have it checked by a transmission specialist before it gets much worse. Could be a seal or worn friction material.
- Nick at Pelican Parts
 
E39 Comments: Hey so i plug my obd ll ít said my EGS í not comunicating so do i just cuange out the module?
November 11, 2016
  Followup from the Pelican Staff: Not that simple. First confirm your tool does in fact communicate with it. - Nick at Pelican Parts  
Tim Comments: I mean cod p0600 miss comunication is it the tranny ecu problem?
November 8, 2016
  Followup from the Pelican Staff: Possible. Be sure the power, ground and data lines to the DME and Trans ECU are ok before replacing it. - Nick at Pelican Parts  
Timothy562 Comments: Hey nick im on limp mode my car stays in 1st gear starts up fine sounds healthy i have code p0400 miss communication code can i be have the sme issue as you on my e39 01 525i
November 8, 2016
  Followup from the Pelican Staff: Got it,

Possible. Be sure the power, ground and data lines to the DME and Trans ECU are ok before replacing it. - Nick at Pelican Parts
 
Busta Comments: I have a 99 528i would the wheel speed sensor Cause the tranny light to come onthe small gear with the! On the lower dash.
November 5, 2016
  Followup from the Pelican Staff: A speed sensor for the transmission could. Best bet is to check fault codes. - Nick at Pelican Parts  
Nando Comments: Hi. I have a 2000 e39 540 and my transmission just went into failsafe mode. It stayed in 5th gear. I also have an abs pump problema but I disconnected the module and the problema persisted. If goes into 5th it means a mechanical problema, so the abs pump problem should not be causing the fault, right? Any thoughts? Thanks.
November 5, 2016
  Followup from the Pelican Staff: ABS pump should cause an issue with the transmission. - Nick at Pelican Parts  
Brett Comments: Have a 1997 528 bmw. Has transmission failsafe program when you turn the ignition to the on position. Also check brake lights, reverse lights and fog lights and no illumination of gear indicator position on dash at all. Code in transmission module is pressure actuator 2. Swapped solenoids around, cleared codes, same result, same code. Also engine has misfire, car has been sitting around a long time. All fuses checked and relays swapped around where possible. Any ideas?
November 4, 2016
  Followup from the Pelican Staff: Sounds like a short in the wiring harness for the solenoid. I would get a wiring diagram, then check the wiring from the trans ecu tot he solenoids. Once you get that sorted, address the other issues. - Nick at Pelican Parts  
AlanConstancio Comments: Guys I have an Bmw e39 1996 Manufactory August 1996, I had to replace the Transmission and after that I lose the Module GS9.22 from my car computer, I can't find the module. Can it be an Fuse Burn or relay burn. Please help. I change my old 5hp30 transmission for another 5hp30 from donator.
November 1, 2016
  Followup from the Pelican Staff: Lose the module? You mean it is faulty or won't communicate? if so, it could be the wiring or a fuse. - Nick at Pelican Parts

I would grab a repair manual. It will have the wiring and fuse locations.

Give our parts specialists a call at 1-888-280-7799.
 
Adam Comments: I've run into a major problem. After having a friend work on my 2004 545i E60- ZF GS19A trans the car won't start. Straightforward job- replace trans pan, bridge seal, sealing sleeve but now the car won't start. Prior to this I was having rough shifts but I was told the bridge seal is a common wearable item car has about 77k. I ran some codes in INPA and got P0706. I have no idea where to start. Could someone please help me shed some light on this? Hoping he didn't damage the mechatronic unit. Any help would be greatly appreciated.
October 31, 2016
  Followup from the Pelican Staff: Possible the trans range switch is not seeing neutral or park. - Nick at Pelican Parts  
Zeus Comments: Hey. My name is Zeus and I'm a dubious owner of 2003 BMW 525i. It seems my issue lies in an electrical issue. Every other week my vehicle is spitting out a the same few codes. Initially I thought my car was experiencing constant mechanical issues but I realized when I cleared out the codes the issues stopped. If the problem was originated from a genuine mechanical complication my clearing of the codes wouldn't rectify that issue. I'd have to actually fix the problem for it to no longer affect the vehicle. This back and forth has been going on for a number of months. The most recent occurrence was a few days ago when the car shot out a code for "Transmission Faile Safe Mode". Given the previous pattern I connected the reader to delete the code and get my car back to optimal levels. Unfortunately the reader wouldn't turn on. After attempting for a few days I stopped by an auto parts store and had them try their reader which revealed that my diagnostic port is inoperable. I'm currently in the process of determining whether it's the fuse or the actual port that needs to be replaced. Once fixed I can clear the codes and get my car in order. Due to the Fail Safe Mode my reverse gear has gone out. I'd like a more seasoned perspective and opinion on my hypothesis on my electronic issues.
October 30, 2016
  Followup from the Pelican Staff: if your scan tool doesn't communicate, it could be due to a bus system failure or a module failure. - Nick at Pelican Parts  
gods way Comments: i have a 1998 bmw 528i change transmission oil and filter. it slips into every gear,and wont move
October 27, 2016
  Followup from the Pelican Staff: Sounds to me like the transmission is worn out. First check the fluid level to be sure it is correct.
- Nick at Pelican Parts
 
e32luck Comments: Hello, Nick how would I perform a pressure test on A5S560Z 5HP30 that has several pressure ports. I researched Bentley Manual has info mostly for 4HP22 and 4HP24. Would a pressure test narrow down which circuit or part would be faulty? Thank you, Ken.
October 13, 2016
  Followup from the Pelican Staff: There should be a measuring port on the transmission, near the front of oil pan (above the cooler line input). You can measure main system pressure there. Other than pump pressure, I don;t think they supply multiple ports for testing pressure through gears.


Start engine.
Selector lever in "P" or "N". Engine speed > 1500 rpm.
Read main pressure on pressure gauge.
Main pressure specification: 9.6 - 10.5 bar.


- Nick at Pelican Parts
 
klucero Comments: Hello, Nick on A5S560Z model if in TRANS PROGRAM will it also go into 4th gear with power failure to TCM or 5th gear from mechanical failure as well like the AS5360R mentioned in your article? Thanks for your valuable input, Ken.
October 11, 2016
  Followup from the Pelican Staff: As far as I know, if in limp or fail safe, it will be in only one forward gear. - Nick at Pelican Parts  
Noahssracer Comments: @Nick, if the water pump was bad wouldn't the engine temperature rise? I have no overheating problems with the engine just the transmission temperature.
October 1, 2016
  Followup from the Pelican Staff: Yes, one would assume. You either have a restriction or poor coolant / trans fluid flow. - Nick at Pelican Parts  
BMW Lover Comments: Hi Nick, thanks for your reply and suggestions. However I did wait for the vehicle to dry out 10 days but with no success. The car does start but it stays in LIMP mode and all the warning lights on the dashboard stays on. The temperature gauge stays full and the rev counter does not work. What I also tried is I loosened a lot of electric connectors, dried it out no one was wet and connect it again but nothing helped. Any other suggestions perhaps please ?
September 27, 2016
  Followup from the Pelican Staff: I would assume the control module was wet and ruined then. - Nick at Pelican Parts  
noahssracer Comments: I have a 2000 e38 and trans temp through INPA is reaching 270 degrees F. I just replaced the trans thermostat and flushed cooling system but still high temps. i do hear a whine sound from trans that comes when trans gets hotter. any suggestions?
September 25, 2016
  Followup from the Pelican Staff: The water pump may be faulty. - Nick at Pelican Parts  
Fatman901 Comments: And by the way the car backs up with easy the failsafe trans is on when I drive it try to pick up speed it have a slow take off and my abs light is on to and it don't read my rpm and speed and my a/c get cold and hot please help
September 19, 2016
  Followup from the Pelican Staff: I responded to your other post. - Nick at Pelican Parts  
Fatman901 Comments: I have a 2000 bmw 740il its have a slow take off and the fail safe is on and my speed and rpm does not work my abs light is on when fail safe reading come on
September 19, 2016
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
AK Comments: Hello Nick,
Build date 7/98 540i with 5hp24. I am currently fighting an electrical issue. Would you happen to have a source for the pin assignments? Which car were you working on for the article? I'm getting an intermittent EDS 3 error.
Thank you.
September 18, 2016
  Followup from the Pelican Staff: I don’t have that info.

The Bentley manual should.


Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
BMW Lover Comments: I have a 2001 e39 530i automatic BMW. I washed the engine and compartment and now the car starts but all the warning lights on the dash comes on exept the check engine warning light. The heat gauge is maximum and rev counter also does not work. What can the problem be? Please some help would be appreciated much.
September 18, 2016
  Followup from the Pelican Staff: You may have gotten water into some connectors or components. Let the vehicle dry out.

I would also check the vehicle for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
Calvin Comments: Hi Nick.
Do you think is possible the ENGINE CONTROL MODULE DME need to replace? If yes, and how to replace? Do I need to re-program the DME or don't have to? Thanks
September 14, 2016
  Followup from the Pelican Staff: Yes, of course. You will need a new DME and an advanced BMW scan tool to code and program it. - Nick at Pelican Parts  
Cosmin Comments: Hello , i have a e39 , 530 D from 2002, automatik ... and i get this " Getribenotprogramm" Trans fail sistem , but only in four gear , every time when i go to road, the gear box changes speed normally, i changed the battery, i put oil in the gear box, what should i do anymore?
September 13, 2016
  Followup from the Pelican Staff: You likely have a gear slip. Check if the trans shaft speed is higher than desired. - Nick at Pelican Parts  
Calvin Comments: Hi Nick,
I did not run my car for two day, the engine really cool, and I start the engine, the air pump did not run at all and the Service Engine Soon light is on after the engine is running for less then a minute, I took the pump off the car and check with 12V DC. Pump is running, but in the car it did not run? And show on my scan is Engine-DME Motor Electronics - FAULTL1- the code is 2A00 DME Secondary air system not present.??? Thanks Nick
September 10, 2016
  Followup from the Pelican Staff: Possible fault with the relay or fuse for the pump. I would grab a repair manual and wiring diagram and trace the circuit. - Nick at Pelican Parts  
moac Comments: I have 540 e39 and have to change the gearbox ecu what should I do to code it
September 10, 2016
  Followup from the Pelican Staff: Either get an advanced BMW scan tool such as Autologic or take it to a shop. - Nick at Pelican Parts  
Dave Comments: Have a 2002 BMW 530i. Drove thru thick water on highway, at highway speeds during recent heavy rain. Trans Failsafe mode immediately indicated on instrument cluster. No check engine light though. Had similar issue several months ago on neighborhood street at 20mph speed and it went away after a couple of days. Since this heavy downpour recently though, the car has stayed in the limp home mode. I'm assuming it's water related but thought it would have dried out by now. What do I check? I've heard of looking under passenger side air filter housing under hood, but what do I look for? What do I test/check and how??? Thanks!
September 3, 2016
  Followup from the Pelican Staff: FIrst check if the trans ecu is wet or it looks like water got in the e=box. If so, you found your problem. If dry, check the trans fluid and harness for water intrusion. - Nick at Pelican Parts  
Micke Comments: Hi, I have a BMW 540IA -97. I also have a transfer failsafe prog issue. I can use reverse gear without a problem but when i put it in drive nothing happens when i give it some gas the engine just revs. After a few secons it enters trans failsafe mode and the car drives. I get the fault code "EGS 3B[059] Stalling speed". I used INPA to monitor the input/output sensors. And when the car drives there are values. Any suggestions? Thanks in advance.
September 3, 2016
  Followup from the Pelican Staff: SOunds like a faulty torque converter. Could be the converter, seal or front pump. - Nick at Pelican Parts  
ramon Comments: I've read this type of behavior can happen if there is a bad ground batrery ground strap or alternator. THere has been no warning lights, have had no problems with car, is been well maintained and in good condition. Like I said, it began a few days before the battery died and has continued intermittently. Have also read could be a shifter silenoid for 1st and or 2nd gear. Not sure how or where to begin in troubleshooting.
August 31, 2016
  Followup from the Pelican Staff: That is easy to check. Voltage drop test the cables and check alternator voltage and current output. - Nick at Pelican Parts  
Ramon Comments: I have automatic 2001 bmw 525i with ~73000 miles. just recently, from a stop RMPs run high and does want to shift to the next gear. once goes into next gear shifts fine up and back down. No fail error lights or anything on dash. this started right before the battery died and was replaced. it's not consistent. WHat could be causing this behavior. The car has had no problems with tran and drives great until this new behaviour started. Ideas......
August 31, 2016
  Followup from the Pelican Staff: if the trans is not shifting, you will have to monitor the trans data stream using a BMW scan tool and see if the output speed is correct. Something may have been shorted during the battery replacement. - Nick at Pelican Parts  
Mikko Comments: Hi.
The increase still below my text.
So, I found a solenoid, and I measured it and I got 21 ohms.
So it's okay?

I once again had the gear stick out of the P position.
Thus, the solenoid is pulled
This was achieved when swiveled key in the ignition switch back and forth, and I pressed the brake at the same time also.
August 29, 2016
  Followup from the Pelican Staff: Where did you get that spec? I don;t have solenoid ohm specs, as they are not supplied by BMW. - Nick at Pelican Parts  
Mikko Comments: Hi I have E39 540IA,, Trans fail safe,, and I get
INPA:
19 Lift magnet Shift-Lock
Error frequency : 1
Logistic counter: 59
Mileage/Km-reading 264390.00 km
SV 1 0.00 0/1
SV 2 0.00 0/1
SV 3 0.00 0/1
SV Shift-Lock 0.00 0/1
Brake operated 1.00 0/1
Gearbox Switch L1 1.00 0/1
Gearbox Switch L2 1.00 0/1
Gearbox Switch L3 0.00 0/1
Gearbox Switch L4 1.00 0/1
Prog.-button A 1.00 0/1
Prog.-button S/M 1.00 0/1
Steptronic slot 0.00 0/1
Error lamp 0.00 0/1
Battery Voltage 11.56 Volt

And ISTA:
000013 solenoid shift lock

If I clear error memory, Trans fail safe mode comes when I press the brake pedal.

So where can I find the solenoid and can I measure it is working somewhere else?

Or can the fault be in the ignition switch?
Because when the key is waving so sometimes the gear is released from the P position.

August 28, 2016
  Followup from the Pelican Staff: INPA is an engineering tool, the data and fault codes displayed are not meant for mechanics, I have no experience deciphering it's codes or data.

the shift lock solenoid is for the shifter, unlikely it is causing a fail safe fault. it will cause the shifter to remain locked. - Nick at Pelican Parts
 
Black Hawk Comments: I have a 2002 Bmw 540i, E39. After the car warms up after about 5 miles of driving I start getting transmission slipping and then a jerky shift into 2nd and 3rd gears. After a couple times it will then go into failsafe mode and stay in a higher gear 4th or 5th, I'm not sure. The codes are reading
049 31 Symptom, gear monitoring
053 35 Gear monitoring 3 P0733
052 34 Gear monitoring 2 P0732

My mechanic recently changed the fluid and replaced the filter before these episodes.
After the car has sat a while it shifts ok again for the first few miles of driving, before it warms up. What do you think the problem might be? Thanks, Black Hawk
August 25, 2016
  Followup from the Pelican Staff: This could be a slip caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip. I would have it checked by a transmission specialist before it gets much worse.
- Nick at Pelican Parts
 
Jazzman Comments: Hi, I have a 2000 540i and the cluster all of a sudden says: limit mph. What dies this mean? I've had a mechanic look at the engine sound before this came up, he said I need new timing chain guides. The engine sounds a little clunky on the left front corner as you stand in front of the car. Also told it may need a new tensioner for the chain. I'm confused. Don't know who to trust. Thanks
August 22, 2016
  Followup from the Pelican Staff: This is just a speed limit warning, that is set by the driver.
Go into the on-board computer (OBC), and set the limit something higher. Check your owner's manual for more info. - Nick at Pelican Parts
 
E36 Comments: Hi, the transmission control module of my E36 325i 1992 was diagnosed as faulty. I was offered a used module from a 525i 1992 and they told me that would fit properly. Both cars use a ZF 5HP 18 A5S 310Z automatic transmission. Will it work correctly or do I need to reprogram it for the 325i?

Thanks
August 17, 2016
  Followup from the Pelican Staff: I am not 100% sure. It will likely work. As long as the vehicle software is the same. You can check the part number for the 525 is the same as your vehicle. - Nick at Pelican Parts  
Tom Comments: e39 525d, when kickdown is initiated, first second and third gears shift at about 4600 rpm, the power is almost gone at this engine speed... What could be the problem for late gear shifts?
August 9, 2016
  Followup from the Pelican Staff:
First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.

This could be a slip caused by low fluid or low pressure. If it is OK, you may have worn parts causing a pressure drop and slip. I would have it checked before it gets much worse. - Nick at Pelican Parts
 
will Comments: hi i have a 2000 E39 540 ia and first the a/c abruptly stopped which i think is the fsu resistor but then the next day the instrument panel stopped working and fail safe mode car wont take off as fast gauges dont work could this be a wheel speed sensor? the car has 108,000, abs and the trianle lights are lighted up the mileage is lite up but not working.
August 5, 2016
  Followup from the Pelican Staff: Sounds more like a possible electrical system issue. I would start by checking the vehicle for fault codes. If multiple systems are not working properly, fault codes will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
Ben Comments: Hi. I have a E39 530d 2002 Automatic transmission. Couple of days ago while driving, steped on the pedal, and as the revs were going toward 4000 - 4200 rpm, and as i expected it to shift from third to fourth gear it started to go back and forth, a motion that is best described if you start jerking the pedal on and of. It did like that couple of times, then i released the pedal a bit and it changed. I tried this second gear towards the third same thing happens. normally it changes very smooth, but once the revs hit 4000 + rpm it does this. no faulty messages or light. What could it be?
August 4, 2016
  Followup from the Pelican Staff: Is the check engine light on or flashing when the problem is present? Sounds like an engine misfire. I would check spark, fuel and compression on all cylinders.
- Nick at Pelican Parts
 
Kyle Comments: Hi nick I have a 2000 BMW 540i 195 000km and it is going into limp mode the codes say pressure actuator 1 and 2??? Have no idea what to do ??
July 31, 2016
  Followup from the Pelican Staff: You can check trans pressure using an advanced BMW scan tool. Could be a solenoid or sensor issue, worse case a pressure loss in the trans. - Nick at Pelican Parts  
Manny Comments: Hey nick I have a 01 bmw 330ci went into limp mode and traction light came on was raining very hard when it happened
July 30, 2016
  Followup from the Pelican Staff: Water may have gotten into a wheel speed sensor. I would start by checking the vehicle for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
pls85 Comments: do you know where the speed sensor and speed sensor circuit in my car are located? I thought the sensor was under the tranny oil pan, but not sure where the circuit would be
July 30, 2016
  Followup from the Pelican Staff: What type of vehicle are you working on? I can check if i have that info. - Nick at Pelican Parts  
pls85 Comments: Hi, I have a 1998 740i. I am in Trans fail safe mode and the codes I am getting are Speed Sensore and Speed Sensor circuit. As well as Gear 4 Ratio. I have an understanding, but still looking for answers.
July 29, 2016
  Followup from the Pelican Staff: Check the speed sensor data using a BMW scan tool. If not present, the sensor maybe faulty. - Nick at Pelican Parts  
pls85 Comments: Hi, I have a 1998 540i. I am in Trans fail safe mode and the codes I am getting are Speed Sensore and Speed Sensor circuit. As well as Gear 4 Ratio. I have an understanding, but still looking for answers.
July 29, 2016
  Followup from the Pelican Staff: Check the speed sensor data using a BMW scan tool. If not present, the sensor maybe faulty. - Nick at Pelican Parts  
Stevovo Comments: Hi Nick, I forgot to mention that if I reset the errors I can drive on manual first and second gears only. Reverse is also fine. It only goes into limp mode when I change into third gear.
July 25, 2016
  Followup from the Pelican Staff: Got it, thanks. - Nick at Pelican Parts  
Stevovo Comments: Hi Nick, I sent the car to BMW and they picked up code 95 EGS:CAN wheel speeds and 22 EGS:Transmission temperature sensor. I know the temp sensor is in the wiring harness. Do you think it is worthwhile to replace these parts before throwing a towel and getting it recon. BMW said they don't fix these boxes here and referred me to a ZF agent who is charging recon fees to fix. Thank you.
July 25, 2016
  Followup from the Pelican Staff: The wheels speed fault is could cause a shift issue, since it is a CAN fault, you'll have to determine if the issue is the sensor or in the BUS system. Definitely worth looking into before a rebuild - Nick at Pelican Parts  
HBirtles85 Comments: My mates code reader came back with P0705-transmission range sensorS circuit?? From Google sounds like I need to check the connections on the gearbox?
July 20, 2016
  Followup from the Pelican Staff: Check the transmission range switch. It is the switch that monitors gear position, as selected by the driver. - Nick at Pelican Parts  
HBirtles85 Comments: Just to add, the car seems to drive totally normally when I drive it, 4th is a little harsh when driving hard but my last E39 was the same so not sure if there's anything wrong there, My garage say the transmission oil level is ok as not long after I bought the car the coolant system was overhauled I'd been told a common problem so did it before it went wrong they did have to replace the gearbox oil cooling thing can't remember what it was called off the top of my head and they said they would have topped up the oil then, I'm fairly sure this was after the initial fault came up but I'll have to check my records.
July 20, 2016
  Followup from the Pelican Staff: Check the range switch as I mentioned. If the wrong gear is seen, it will shift incorrectly. - Nick at Pelican Parts  
HBirtles85 Comments: Hi, I have a 2001 535i V8, I bought the car in January on 65k, one owner from new, shortly after buying the trans failure programme came up, I did a bit of research and found common issues are the alt/battery, I checked the alt and working ok, the car had only done 3k in the last 3 years so I put a fresh battery on. The fault came on once after than and then hasn't come up again for about 5 months, now the trans fault is coming up but as before it tends to happen when the car has just been started or when stationary, so I just turn the car off and it clears the error, I had my garage check for codes and came up with something like "gear selector fault" but gave no code, the garage say it seems to do it when moving the shifter around, I tend to drive the car in manual the majority of the time as I fitted E46 M3 paddle shift I believe this to be unrelated to the fault as it first presented itself before I fitted this, and had it fitted to my last E39 with no faults I'm going to take the car to a BMW dealer and see if they can help find the fault, it's rather frustrating as I'm planning to sell the car soon but obviously I'd like to get this issue sorted first!
July 20, 2016
  Followup from the Pelican Staff: You could have a faulty trans range switch or the wiring to it. I would check the selected gear verse displayed gear using a BMW scan tool. usually if the gear selected displays on the driver info display correctly, it is currently working. - Nick at Pelican Parts  
Falconman Comments: Hi Nick! I have a 2001 540 wagon 141,000 miles. Under light mellow driving the transaction shifts firm but normal. If you drive the car any harder, Trans still shifts very firm but will go into "Trans failsafe prog". Occasionally a ses light will be triggered, but I haven't had a chance to pull the codes. All I do is pull over, stop and restart the engine and if I drive mellow it won't come back. Any clue where to start?
July 18, 2016
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. You said your light is ON, so the code will put you in the right area of the issue. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
Stevovo Comments: Hi Nick, I have a 2002 E39 525i that had a slight lag with a whining noise when pulling off. It also used to get stuck on 3rd gear and will have go to manual to git past 3rd. I changed the trans oil and filter and nothing much changed. now it is on limp mode with the following BT codes: 49 symptom gear monitoring, 54 gear monit4P0734, 65 gear monit limp home. Am I looking at a serious mechanical issue or electronics that can be fixed? Thank you.
July 18, 2016
  Followup from the Pelican Staff: MOst likely a slip caused by worn parts. You can confirm the speed sensors for the trans are working by monitoring input and output shaft speed using a BMW scan tool. - Nick at Pelican Parts  
Romber Comments: Hi I have a problem with my car, bmw e 39 525i. it is not changing like it supporse to do, it drive with a one gear. And when am going in a hill it start to reduce a speed. What could be the problem. My pleasure.
July 7, 2016
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
brian Comments: MY e39 transmission light just came on and the car goes in ether 4 or 5 gear. sometime it takes long to come on sometimes it come on as sson as i start the car, can u please help me with the proble
July 3, 2016
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
Rivett Comments: Dear Nick/Pelican Parts, I found you've been quite helpful with your pictures & responses to comments here. Kindly help my case, please.
It's an E39 540i 1998/99. I observed but didn't understand the TRANSFAILSAFEPROG before it finally stopped cranking & wont start anymore even when the Ignition is fully turned on not a battery issue. Checks by a friend reveals the "Gearbox Relay" is permanently on Drive Mode. Kindly help explain what can be done. Thanks in advance.
June 28, 2016
  Followup from the Pelican Staff: Check if the transmission range switch it faulty. Try moving to neutral and try starting the vehicle. be sure the wheels are blocked before doing so. - Nick at Pelican Parts  
Steve Comments: I have a 99 740il and i got a code for the pressure controle sylanoid c. I got it check at auto zone and they said the suggested mantainence is to change the brake fluidm wpuld this have anything to do with it going into trans fail safe
June 26, 2016
  Followup from the Pelican Staff: No, brake fluid will not set a trans code. The solenoid, wiring or connector may be faulty. - Nick at Pelican Parts  
streetking801 Comments: 98 528i today there was athump on bottom of car now the car has no drive in any gear but it does seem that it switches into gear and when park is reselected there is a grinding for a second any thoughts
June 20, 2016
  Followup from the Pelican Staff: The driveshaft may have become detached. That would explain the noise when placing it in Park. - Nick at Pelican Parts  
cloyolaq Comments: Hi Nick, a warm greeting from Chile. last year the switchboard failure gearbox my bmw 540i. The repaired and returned to fail BUK 564 mosfet transistor 60H. I changed the wiring harness from the gearbox control unit and then remove the oil tank cover of the box to check internal components. All solenoids were correct, turbine rotation sensor also. The speed sensor had metal pins remains between its two had not put the metal latch and bolt, for some reason he fell. And I noticed that. I still do not test to start the engine because I put carter and oil cap. The scanner before failure in the exchange showed: temperature sensor failure gearbox oil. I searched articles, but all I know is that is incorporated into the wiring harness that goes inside the gearbox. You could please a photograph showing where the sensor is installed in the wiring harness to test it? Cable code is: 24341423762 zf With temperature sensor. I appreciate your kindness.
June 14, 2016
  Followup from the Pelican Staff: I don't have a photo of that component to share.

You will have to buy the entire harness to replace it. - Nick at Pelican Parts
 
Beemergurl56 Comments: Thank you for the prompt reply..Service co,,stated that the oil was not low after all..however the oil was a silver gray color..NOt the reddish color..and that the trans is slipping at 2 and 3... They state i can only do a rebuilt or used or rebuilt trans.. DO you have any comments on this...and what is the best way a used or rebuilt
June 10, 2016
  Followup from the Pelican Staff: Rebuild is good option if they are experienced with that trans. It will be cheaper than a rebuild. Just clarify the warranty on both, go with what works for you. - Nick at Pelican Parts  
Beemergurl56 Comments: hi Pelican-just purchase a used 1999 E39 528i..AUTOMATIC..Only 144K miles....All is exceptional except...as the trans shift to 2nd, there is a mild thunp and also an occasionl RPM rush up and falls back down....The car just has a recent new radiator installed...is there any connection between the two.. a transmission guys states that it possible that when the new raditor was installed that some trans fluid may have leaked out and this could cause the slipping...he is going to check the fluid and se the level...is ther anything else I need to be concerned with? please help. Much LOVE for your help
June 10, 2016
  Followup from the Pelican Staff: yes, the fluid may be low from the radiator replacement. I would start there. - Nick at Pelican Parts  
obling1 Comments: no my check engine light is not on after awhile it will come on and say #6 misfire.
June 6, 2016
  Followup from the Pelican Staff: Cyl #6 is misfiring. I would check spark, fuel and compression on all cylinders.- Nick at Pelican Parts  
obling1 Comments: hey my check engine light only comes on to tell me misfire #6 thelowest cylinder compression is 135 I am going to replace throttle body o ring and see what that dose what do you think thanks.
June 6, 2016
  Followup from the Pelican Staff: Cyl #6 is misfiring. I would check spark, fuel and compression on all cylinders. The throttle body O-ring won;t fix a single cylinder misfire. - Nick at Pelican Parts  
obling1 Comments: hi I have a98 528i e39 it was not shifting into high gear I drained some fluid now it shifts but now it shows misfire #6 I changed these parts and still runs rough the cam position sensor crank position sensor manifold gaskets and put injector kits in all injectors and valve cover gasket I sill have the rough idle it seems worst when in gear and back in park and rev it it smooths out can you help me pleeeeeeeeeeeeeeease thanks
May 30, 2016
  Followup from the Pelican Staff: Is the check engine light still on? Sounds like an engine misfire. I would check spark, fuel and compression on all cylinders.
- Nick at Pelican Parts
 
04.asalas Comments: I have a 2002 bmw 525i, recently it rained and I had to go through a medium leveled water. I drove slowly and was able to go through it easily. Although I got home safely, the next day the car went into transmission fail safe program. What could be the problem?
May 29, 2016
  Followup from the Pelican Staff: You may have a water intrusion issue in the wiring harness. I would check the harness and fluid for water. - Nick at Pelican Parts  
e32luck Comments: Thank you, Nick I replaced the valve body with a refurbished one with new solenoids made be by Sonnax.
May 27, 2016
  Followup from the Pelican Staff: No problem, let me know what you find. - Nick at Pelican Parts  
e32luck Comments: Hello,Nick I have the problem 3rd to 4th shift slip on 5hp30 transmission and you mentioned the teflon seals maybe the problem well I forgot to mention that the shifting problem already exsisted before I rebuilt the transmission, could there be another possibilty? Thank you, Nick.
May 23, 2016
  Followup from the Pelican Staff: it could be electrical. You can monitor the shift solenoids during the shift to see if they are in the state they should be in. - Nick at Pelican Parts  
Chad Comments: Hi, Sorry, I have more info I should have added. I have tried another TCM, made no change. I have change out trans fluid and made sure level is correct. checked wiring from trans to TCM, new ignition switch.
May 22, 2016
  Followup from the Pelican Staff: Thanks for the info. - Nick at Pelican Parts  
Chad Comments: Hi, I have a 99 e39 540i , trans ZR5HP-24. when I start the car it will go in to TRANS FAIL SAFE after 5 seconds. if I start the car I can shift it between park reverse neutral and drive, as long as I shift every 5 seconds or less it will never go in to TRANS FAIL SAFE. It can be driven in the manual mode and not go in to fail safe as long as a gear change is made every 5 seconds or less. I don't drive around like this, it just something I tried. when in TRANS FAIL SAFE it is in 4th gear. I got a code from trans, PRESSURE REGULATORS TOTQAL CURRENT. but don't know what this means. hope you can help, thanks Chad
May 22, 2016
  Followup from the Pelican Staff: Sounds like there is an issue with the circuit or solenoid for pressure control. You will need to get a wiring diagram and test function and current of the solenoid. May just be a faulty solenoid or a shorted wiring harness. - Nick at Pelican Parts  
ernst359 Comments: It give me code p0734
May 15, 2016
  Followup from the Pelican Staff: This could be a slip caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip. I would have it checked before it gets much worse.
- Nick at Pelican Parts
 
jeaneth nelisiwe Comments: hi I've got an bmw E39 528i on the bash transfailsafe and it only goes to gear4th and 5th and does shows reverse light when you're reversing please help. also want to know what does transmission range switch does?
May 10, 2016
  Followup from the Pelican Staff: The trans range switch tells the control modules what gear is selected. First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing. - Nick at Pelican Parts  
ernst 359 Comments: I have a bmw x5 2004 dash says TRANS FAILSAFE PROG
when i check the it give me POSITION SENSOR /CLUTCH
36 BATT. + SUPPLY
PLEASE SOME BODY HELP ME
May 8, 2016
  Followup from the Pelican Staff: What are the fault code numbers? From what you have sent, I would assume there is a faulty solenoid or circuit in the transmission. - Nick at Pelican Parts  
JOE Comments: I have a 2003 BMW 540I E39 with the M-tech Automatic transmission in it 151,000 miles, and I have recently had an issue with the transmission shifting irregularly and sometimes off a dead stop in both sport mode and drive will start to go fine then it will upshift then downshift quickly and continue to do so until either letting off the throttle or the transmission goes into FAIL SAFE MODE. haven't scanned for codes, is there anyway to check the fluid on these transmissions. thank you.
May 3, 2016
  Followup from the Pelican Staff: FLuid level checking info here:

http://www.pelicanparts.com/BMW/techarticles/BMW-5-Series-E39/91-TRANS-Automatic_Trans_Fluid_Replacing/91-TRANS-Automatic_Trans_Fluid_Replacing.htm - Nick at Pelican Parts
 
Deron Comments: The car is an e39 m52 520i. In INPA CAN Read Status Digital screen, the ATS dot blinks, stays steady for two seconds some times but keeps blinking in comparison to Clamp A and Clamp 15 whose dots are steady and do not blink.
April 30, 2016
  Followup from the Pelican Staff: The article diagram is not for your model.

INPA is an engineering level tool, not a technician diagnostic tool, so the info it displays is not available in repair info, i can't help with it. - Nick at Pelican Parts
 
Abe Comments: I have a 2003 325i, was driving it when gear with a exclamation point came on the dash next to what gear I am in ! Car feels like it has no power.when i come to a complete stop the car moves once I pass 3000 RPMS &will not go in reverse. Only lights that appear on dash is the gear with exclamation mark ! & service engine soon light. Any suggestions on what can be causing this ?
April 29, 2016
  Followup from the Pelican Staff: Sounds to me like the transmission is worn out.

First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.- Nick at Pelican Parts
 
Deron Comments: Thanks for the previous comments. May I ask if the diagram above gives the check to be made to correct the "data bus" issue. My ASC module is under the dashboard passenger side.
April 26, 2016
  Followup from the Pelican Staff: You didn't mention what vehicle you have, but if it not the vehicle listed, it will not be the same.

I would grab a repair manual. It will have the wiring.

Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
e32luck Comments: Hello, thank you for input the teflon seal you are refering to is in the valve body? Thank you, Nick.
April 23, 2016
  Followup from the Pelican Staff: Teflon seals are used in the transmission, you mentioned it was rebuilt. A seal may have been installed improperly. - Nick at Pelican Parts  
mark Comments: There is no temp gauge in the car.
April 22, 2016
  Followup from the Pelican Staff: Then I stick with my original comment:

Likely a faulty control module or buss error.
- Nick at Pelican Parts
 
mark Comments: Hi nick
I have a bmw 328i 09. .. 50k on it. .. last year the car tries to start but wont turn over. . I found a blown fuse in glove box. ..
Worked fine for the next year. . This week same thing happened again but all fuses are good. .. tried to start it a few times then it came up a yellow exclamation in a gear circle.. would even let me try to start...
I plugged in diagnostic machine and it said U110F lost communication with torque request ETC. .
i then disconnected battery to reset computer for 20 mins then it started no problem and allowed me to drive 50 miles home. . The fault code dissappeared after 20 or so miles. . When i got home i turned off car but then wouldnt start again.. no fault codes this time. . Had to disconnect battery again to start it. .. now it starting fine last few days.. any thoughts?
April 22, 2016
  Followup from the Pelican Staff: Likely a faulty control module or buss error. Is the temp gauge at HOT when the vehicle doesn't start? - Nick at Pelican Parts  
Jj Comments: I have a 2003 bmw 330i i put a new transmisson in that had 105 k on it. I did a complete transmission flush new oil and filter. 2 months later i had a failsafe code in ct in the winter time. I turned the car off and it never came back on. I had the car for another month before i moved to flordia with it. Its been running great still for 3 months. Now the tranmission lights came back on.ill turn the car off and drives perfectly fine then 5 ten min late right back on now more constantly. I tested the battery says good. I am really stuck right now.its drives good shifts perfect ths thank you
April 19, 2016
  Followup from the Pelican Staff: Could be a fluid level issue. First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing. - Nick at Pelican Parts  
Deron Comments: IN the CAN module using INPA, the Digital Status screen has an unsteady ATS black dot. IT flickers. The car is going into fail safe mode. It started with the right wheel speed sensor but I changed that and live data in INPA shows its now working. The car still misses when changing out. Any idea what to fix next. Getting the error 141 telegram error or no telegram
April 19, 2016
  Followup from the Pelican Staff: INPA is an engineering tool,m so the codes don;t always translate to repair info codes.

You may have a data bus issue. I would check the bus system to and from the TCM. - Nick at Pelican Parts
 
e32luck Comments: Hello,Nick I rebuilt my 93 740 il 5hp30 model#a5s56oz,rebuilt valve body with solenoids,re manufactured torque converter,transmission rebuild kit,Liquid Moly ATF 5le 1200 and rechecked fluid level,filter kit,re manufactured drive line,new main center bearing,transmission mounts,accelerator cable grommets,new battery, new front wheels 25.9 ht.,new maf,tps,idle speed control valve,out put sensor,speed sensor,shift selector,crank sensor,cam sensor,air temp sensor,fuel pump,fuel pressure regulator,fuel filters,ccvv-egr,12 relays-fuel,main,oxygen,dme.Swapped out dme and tcu,stomp test-no code,peak tool read code #30 AC compressor control,BMW dealer diagnostic read code #105 speed sensor signals fault and or slip in gear box after all the repairs and diagnostics I still have a harsh delayed shift from 3rd. to 4th.hot or cold and then TRANS PROGRAM.I did not replaced the wire harness to the valve body it seemed to ohm out okay could this be the cause? Thank you for your input.
April 17, 2016
  Followup from the Pelican Staff: I would assume there is a seal that was damaged or installed incorrectly. It happens with teflon seals often, the wrong one installed, etc.
First confirm the slip via pressure loss. Look for rising duty cycle on the pressure control solenoid when the slip happens. That can confirm an internal leak. - Nick at Pelican Parts
 
Pat gibs Comments: Hi have e39 520i 02 car has gone into limp mode transmission light on abs light on and traction control light on, speedo not working, would something like abs sensor cause this or would I have problem with my transmission?
April 11, 2016
  Followup from the Pelican Staff: Could be an sensor. First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing. - Nick at Pelican Parts  
Ardonit Comments: Hi Nick , i have e39 523i 1998 automatic tiptronic , when i drive in D it shifts fine from 1st gear to 2nd , from 2nd it didnt shift in 3rd it goes to the end of rpm and still did not shift . But in tiptronicM+S it works fine . One day this gear appeared on my dashboard for a few seconds and it turned off again . Thank you
April 8, 2016
  Followup from the Pelican Staff: There is likely a fault code stored. The shift miss may be due to an incorrect sensor reading or a slip. First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing. - Nick at Pelican Parts  
sratner Comments: hi- i have a '99 528i. when i put the car in drive and start moving the car pulsates as if i'm taping on the brakes quickly. it also does this when i'm coming to a stop at very low speed. if i speed up the symptom goes away. if i put the car in neutral it doesn't happen. any idea what it could be? thanks.
April 7, 2016
  Followup from the Pelican Staff: You may have a driveshaft issue. I would inspect the center mount / bearing and the connecting points to trans and diff. - Nick at Pelican Parts  
Alv Comments: Hi, I have a BMW E92 320i using a GM GA6L45R. Initially it started with very hard gear upshifts but still drivable. Now what happens is when i come to a stop, I will feel a huge thud after like 5-10 seconds and transmission goes into limp mode. At times when i hit accelerator its as though it didnt down shift so there no power and then a sudden downshift happens. Mechanics advised me a valve body replacement should fix but i have concerns on whether the TC or Clutches maybe also an issue. Have not felt slippage but more of no power in acceleration and sudden downshift happens and car surges forward. Any thoughts? error code was some High Pressure on Valve C, D, E or something
April 6, 2016
  Followup from the Pelican Staff: I would assume there is an internal pressure leak. Possible worn seal or clutch. It is time for a rebuild. - Nick at Pelican Parts  
Josebimmer Comments: P0732 - Gear 2 Incorrect Ratio
PO733 - Gear 3 incorrect Ratio
Hello, I have a 2000 bmw 540i v8. The car pulls on 2nd and 3rd gear and the trans fail fog light had came up with the check engine soon light. When the car downshift I could feel car pulling back. After passing 3rd gear I able to gas on the car more faster. Please me before I depend more money thanks.
April 5, 2016
  Followup from the Pelican Staff: Gear ratio fault are often set due to a slip.

This slip could be caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip. I would have it checked before it gets much worse.
- Nick at Pelican Parts
 
Christian Comments: Hello Nick, I just bought a 2003 323i from my father. Limp mode with slow starts. My father had a "drain and fill" done by someone and said that the transmission got better. I still feel that it is slow, needs to be above 2500 rpms in order to move from a dead stop. Reverse gear functions well, not slow and very fast. Also once I am on the highway at 65mph the car sits at 3000 rpm. I have the cog with exclamation mark in the middle.
April 5, 2016
  Followup from the Pelican Staff: SOunds to me like a pump or pressure issue. With the raised RPM< the trans is able to make enough pressure to move, or overcome a slip. First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
Arie Comments: Hi Nick my e39 gearbox light comes on and also the triangle with an arrow is displayed,i noticed this happens when the car gets hot and then sticks in one gear,what is the problem
March 19, 2016
  Followup from the Pelican Staff: There is a code stored which will define the problem area. First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
Kgoliday Comments: Aloha, I have a 2008 x5 bmw 65,000 miles and I have transmalfuntion fault on cluster. I put scanner on and got 2 P codes. P170B and P0778 pressure control solenoid. I believe the transmission fluid has never been changed and I think I see a little trans fluid leaking which may be low on fluid. Could this cause this fault code? Thanks
March 12, 2016
  Followup from the Pelican Staff: Low fluid could cause a low pressure issue. I would try topping it up, then clearing the fault and seeing if it returns. - Nick at Pelican Parts  
Lisa Comments: Hi I have a 2002 bmw 525i with 180k miles. Service engine light turned on and I noticed that after 20/30 driving its starts to jerk and tug like it's going to shut off but doesn't, person I bought car from said they had put unleaded gas instead of supreme and poured injection cleaner cause noticed the jerking and tugging. Today on my way to work it was raining check engine light turned on and started doing the tugging but as I gained speed ride felt better. Could only really feel it at a stop. But noticed a little bit of hesitation when I started to go again. It was raining and streets were flooded so after I got through the flooded street about 5-10 miles I noticed the transmission fail safe light turned on. Drove a little no noise no stiffness while I drove it a bit more. When I got out of work I turned on car check engine light turned on. Fail safe light turned and and then turned off. Drove it home which is a 30/40 minute drive home and never turned on again and didn't feel jerking or tugging. Do you think it's transmission going or possible tune up or replacement parts time?
March 7, 2016
  Followup from the Pelican Staff: Could be a shifting issue or an engine misfire. I would start by checking the vehicle for fault codes. If multiple systems are not working properly, fault codes will be set. This will be your best bet when diagnosing. Maybe the transmission is worn out. First check the fluid level to be sure it is correct.

- Nick at Pelican Parts
 
bboy Comments: hi nick. i have a 98 bmw E38 740iL bad idle at start up until it gets warm then its fine i checked for air leaks and i sprayed carb cleaner between throttle body and intake and it idle up i changed the sparks plugs first still bad idle at start up got it checked and it said multiple misfires then i took maf off and it ran fine then i check the cam sensor with multimeter while the car was running i know shouldnt have but i test the part where the cam sensor connet to and it sparked and engine died on me then i started it back up didnt stay started i had to unscrew maf plug for it to stay started now rpm going up and down traction light comes on and stays car stalls no power and wont shift right now stay in first gear i think i have and electrical problem can u please help me my car was running fine shifting ok but when i touch the wrong part it sparked car shut off and now it stall on me and wont changed gears traction light stay on car jerks hard when i put it in reverse maybe cause the car keep idling up idk please help
March 7, 2016
  Followup from the Pelican Staff: Is the check engine light on? Sounds like an engine misfire. I would check spark, fuel and compression on all cylinders. Once you get past the poor running or misfire issue, you can address any underlying performance issues. The misfire can affect it all.
- Nick at Pelican Parts
 
steve Comments: I'm having trouble with 2004 ...it varies from electrical ,,,transmission,,,,and miss...problems
March 7, 2016
  Followup from the Pelican Staff: I would start by checking the vehicle for fault codes. If multiple systems are not working properly, fault codes will be set. This will be your best bet when diagnosing.

- Nick at Pelican Parts
 
Jazz Comments: hi mi 1999 e39 540i automatic transmission dont go forward only works in reverse. it happened today when i was on a stop light the car did not go forward and i dont have any message in the dash, what could it be? any suggestions
March 3, 2016
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
SleeplessInColorado Comments: Hi Nick,
I realized my ABS light wasn't coming on at initial key-on. I checked all power supplies and the pink relay, all test good. I disconnected the harness and checked power at the pins- all good. I previously cleaned and secured all ground connections. I left the connector unplugged, reconnected the battery, started the car and found the transmission operated in all gear positions! I'm currently fabricating an extended heat shield while I save up to get another ABS module. I'm fairly confident this will solve the immediate problem.
March 1, 2016
  Followup from the Pelican Staff: Thanks for the follow up. We appreciate it.
- Nick at Pelican Parts
 
rallymonkie Comments: Hey nick ...So as I was driving this morning to work , the code trans failsafe prog, appeared on my dash , causing for my car to feel rough while up and down shifting , I have a 2002 bmw 525i sport automatic , when I got to my destination a yellow triangle with an arrow around it also appeared on dash board, what does this mean? Bad transmission ? Or anything with the control module with traction control box? Is it safe to drive it back to a shop ? I turn the car on and the trans failsafe is no longer on dash board but the yellow triangle is. Help please
February 28, 2016
  Followup from the Pelican Staff: It can be driven, but will be slow to accelerate and difficult to hold a higher speed. Towing may be best option.
The trans may be worn out, or a sensor /electrical issue. best bet is to have it looked at asap. - Nick at Pelican Parts
 
Nickbmw Comments: Hi I had failsafe message. Mate plugged computer in and got codes 139,149,49,56,59,52 and 123,112,139 and this is on a 97 535i bmw I know on is for thermostat as car temp sits just above half but the rest I don't. Any help would be great thanks.
February 21, 2016
  Followup from the Pelican Staff: Do you have the definitions of the fault codes? - Nick at Pelican Parts  
SleeplessInColorado Comments: Hi Nick,
2002 530i, 5HP19 TU, GS 8.60.4 Lost all forward gears, reverse works fine. All the info I've seen shows resistance readings from pin 12 in the cannon connector to each of the components. The wiring diagram shows the purple wire is looped through and returns on pin 16... Here's the catch.

EDS-1 and EDS-4 show open when using pins 12,2 and 12,11 but when tested using pin 16, both test good at 6 ohms.

OTC/Snap-on's schematic of the TCM indicate ALL EDS supply voltage is on the blue modular connector 4, pin 11 which is the same as the trans connector pin 12. ALL MV solenoids get supply from modular connector 4, pin 21 which is trans connector 16. I thoroughly tested the harness from TCM to trans, all good. I disassembled the VB and cleaned, EDS and MV's all ohm'ed good.

Since the resistance chart indicates trans pins 12 and 16 are looped inside the trans, which I don't want to drop pan again can I just jumper TCM pins 11 and 21 at the module connector? Thank you Nick!
February 20, 2016
  Followup from the Pelican Staff: If resistance is good on the parts, and the harness checked fine I would assume the issue is with the control module.

The solenoids have power, have you loaded the power and grounds to be sure they can handle the load?

Can you share the wiring? May help if I can review it. - Nick at Pelican Parts
 
CloyolaQ Comments: Hi Nick warm greetings from Chile. Some time ago I wrote about my transmission ecu bmw 540i e39 1997. The problem is that the gearbox was in safe mode. I checked the ecu and the gearbox and the rectifier BUK564 was burned. I bought it on ebay another ecu exactly the same in all the numbers you entered into your tutorial. I installed the ecu and the message will not be safely removed. Using the diagnostic tool is that showed Error 233 "can bus". Before the transmission ECU is damaged everything was normal, there was no failure in the gearbox. You have to program the ecu I bought or the problem may be the harness? Nick thank you very much :
February 16, 2016
  Followup from the Pelican Staff: If the control module was for a different vehicle, it will have to be coded. If the can fault remains and you have communication issues, you may have received a faulty control module. - Nick at Pelican Parts  
kruz Comments: I now know there is a leak feom trans i think its the torque convertor seal as the oil is coming from front of transmission and its slipping, I have another torque convertor just dont know whether to just change that.
February 6, 2016
  Followup from the Pelican Staff: If the seal is leaking, you may have a worn pump or converter. i would remove the trans and inspect the parts.

Give our parts specialists a call at 1-888-280-7799. They can help you find the right part. - Nick at Pelican Parts
 
Mike Comments: I have a 2004 bmw 525 has been sitting almost a year battery was dead charged it up started driving it around the block then after going several miles the transfailsafe light came on for the first time ever. I scanned it the code was 60. What could the problem be.
February 2, 2016
  Followup from the Pelican Staff: Could be an issue with the trans range switch. I would check the signals using a BMW scan tool. - Nick at Pelican Parts  
jamie Comments: I have a e46 325i i had trans limp put scanner on and had exhaust camshaft sensor code plus 37 clutch position sensor. when i drive in manually with pace ie shifting above 3k rpm no worries but gear changes at lower revs causes limp i recently had engine changes and this issue within a few hundred miles plus stereo and indicators randomally working then not constantly.
January 31, 2016
  Followup from the Pelican Staff: Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip.
- Nick at Pelican Parts
 
kruz Comments: ONLY OTHER CODE I GET IS EXHAUST CAM SENSOR SURELY THAT WOULDNT CAUS TRANS GEAR MONITORING CODES I DROVE THE CAR UP THE RD MANUALLY WENT 1ST 2ND THEN 5TH GEAR PULLED OVER AND NO TRANS CODES JUST WHEN IT GOES INTO 3RD OR 4 GEAR IT SHIFTS SO SMOOTHLY I JUST DONT GET IT PLEASE HELP!
January 30, 2016
  Followup from the Pelican Staff: It sounds to me like you have a worn out trans. If fluid is OK, the next step is to monitor pressure and slip. Those two items will indicate a worn internal part. You probably need a rebuild. - Nick at Pelican Parts  
kruz Comments: I have now got c110 code reader keeps coming up gear monitoring 31,35,41 and excessive slip, when i put car in reverse press gas it does nothing at first then jolts back. i put in manual 1st and second its fine and pulls soon as it goes in 3rd it auto jumps to 5th and limp so im assuming 3rd and 4th gear are worn out how strange ? i have just changed fluid as said before and every time i stop it stinks of atf fluid.
January 30, 2016
  Followup from the Pelican Staff: It sounds to me like you have a worn out trans. If fluid is OK, the next step is to monitor pressure and slip. Those two items will indicate a worn internal part. You probably need a rebuild. - Nick at Pelican Parts  
torry Comments: bmw e46 my electrics are playing up sometimes nav screen flickers stereo comes on by itself and no controls work blinkers do nothing and window electrics too then a couple mins later works again very strange ?
January 28, 2016
  Followup from the Pelican Staff: Could be an issue with the GEM. Check the vehicle for fault codes to start. - Nick at Pelican Parts  
kruz Comments: Hi i have a 2000 model 330ci auto zf , transmission cogg appeared whilst driving and went in limp, i got the car towed home changed battery and transmission oil and the cogg was gone i drove for 15 mins and it came back left it overnight and same thing again cogg after 15 mins or so. i have a bad oil leak coming from oil housing for couple weeks now and power steering pump has become noisy and less affective could this be causing trans limp mode i have checked oil level and it fine smooth shifting ?
January 28, 2016
  Followup from the Pelican Staff: This could be a slip caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip. I would have it checked before it gets much worse.
- Nick at Pelican Parts
 
BMUR Comments: 2002 530i E39. Receiving Engine failsafe mode display. Unforetunalty, I dropped a socket wrench betweent he postive battery terminal and the metal cross brace which threw a lot of sparks and semi-welded the socket wrench in place before I could get it off. Received the failsafe mode for the 1st time and each time there after. Is there a reset on the failsafe mode? Where should I start troubleshooting
January 27, 2016
  Followup from the Pelican Staff: You likely shorted out a few components or modules. You will have to identify what is shorted and replace it.- Nick at Pelican Parts  
Tom Papp Comments: I have a 2003 BMW 525i 4D WBADT43453GY98456.

The Transmission in vehicle is a A5S325Z with 160k miles
Filling specs with Torque Converter – 8.7 liters
Without Torque Converter – 6.9 liters

What Fluid is compatible with ESSO ATF LT 71141?

Do you have a part numberS for a fluid change, filter, gasket, plug, compatible transmission fluid?


January 25, 2016
  Followup from the Pelican Staff: I’m not the best with part numbers. You;re vehicle should take BMW auto ATF 4.

Give our parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
ed Comments: hi i have a 2007 bmw m5 and says transmission fault transmission failsafe program activated can you please tell me what the problem of this is thank you.
January 19, 2016
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
tompapp Comments: Good Morning. 2003 525I ZF5HP19 Automatic On way home had clunk then TRANSFAILSAFE message 160k mile I bought it with 156K and trans has been fine. Parked car and went back to pick it up. It started and ran rough with P0970, P0966, P2793, P1342, and P1349 codes and TransFailSafe Program. I drove it home and parked it. Is it common to get the Misfire codes with the TRANS message....I changed the plugs and coil about 600 miles ago.
January 15, 2016
  Followup from the Pelican Staff: It's not common, but if engine speed is changing due to a transmission problem, it could flag a misfire code. - Nick at Pelican Parts  
TomPapp Comments: Good Morning. On way home had clunk then TRANSFAILSAFE message 160k mile I bought it with 156K and trans has been fine. Parked car and went back to pick it up. It started and ran rough with P0970, P0966, P2793, P1342, and P1349 codes and TransFailSafe Program. I drove it home and parked it. Is it common to get the Misfire codes with the TRANS message....I changed the plugs and coil about 600 miles ago.
January 15, 2016
  Followup from the Pelican Staff: It's not common, but if engine speed is changing due to a transmission problem, it could flag a misfire code. - Nick at Pelican Parts  
freddie Comments: ihave a97540i I replaced the battery with a smaller one can this effect my trans
January 14, 2016
  Followup from the Pelican Staff: it can cause electrical problems throughout the vehicle if it doesn't have the right amperage rating. - Nick at Pelican Parts  
kent Comments: hello, i have a e39 530d, where i have replaced the tranny, and i get TRANSFAILSAFE, and have run a diagnostic and the fault code says AWS signaldisrupted, when i delete the fault memory, and take it for a drive i comes back after 2 minuts.

have filled up with oil and checked the oil level and it looks fine.

does it have to be programmed to the old AWS?
January 9, 2016
  Followup from the Pelican Staff: I am not familiar with that code. What is the fault code number and last 7 digits of the VIN? - Nick at Pelican Parts  
gtojohnny Comments: Hi,
I have a 2000 E39 528i and it runs fine but is throwing many Trans codes. In fact it will constantly throw codes while idling. My mechanic has told me the TCM is bad. Can I get a used TCM from the same year car and engine and just replace or does it always have to be reprogrammed?
January 6, 2016
  Followup from the Pelican Staff: It will likely work as a swap. I think your model will allow it. - Nick at Pelican Parts  
Lucle Comments: Hi Nick my bmw E 46 auto transmission big bump when down change , scan say solenoid 3 +4 solenoid I replace but still the Same so what happened Thanks
December 30, 2015
  Followup from the Pelican Staff: The harness for the transmission may be faulty. - Nick at Pelican Parts  
Zee Comments: Hi, I got trans.failsafe prog.... I scaned via computer and got 3mistakes from transmision. Cleared them and than only one apeared. It said 60 gear swift or 60 gear switch. What does it mean? What should i do?
December 28, 2015
  Followup from the Pelican Staff: The trans position switch may be faulty. - Nick at Pelican Parts  
STEVEN Comments: Hi I changed the TCU OF MY BMW 528 2000 MODEL THE ERROR OF TRANSAFE MODE WENT IT WAS SMOOTH AND ALL THE GEARS SHIFTING BUT AFTER THE STARTER MOTOR WAS CHANGED THE TRANSIMISION ERROR CAME AND SOME NOISE FROM THE ENGINE PLEAAASE HELP
December 27, 2015
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
Eric Comments: In my X5 I was getting the occasional thump when downshifting at slow speeds, when finally it thumped hard and went into failsafe mode. I checked the TCM codes in INPA and saw one for "Pressure Controller EDS 5". I cleared the codes and started it up and got the failsafe warning again. Checked the codes again and this time I saw "Pressure Controller EDS 4". I figured it was unlikely that two solenoids went out at the exact same time so I exposed the TCM to test the resistance of the solenoids and found a bunch of water under the connector that goes to the round plug at the transmission. I blew it all out with my compressor and I still get codes.

Do you think the TCM has been damaged by the water? Or should I continue with the solenoid troubleshooting?
December 21, 2015
  Followup from the Pelican Staff: If it got wet, it is damaged. No doubt. - Nick at Pelican Parts  
ashy Comments: hi nick so far i have changed fluid fliter.new seals bolts gasket and correct fluid,this problem has only started since my oil pump,chain and guide chains were replaced..ive only done 500 miles since a bought itin march.....
December 16, 2015
  Followup from the Pelican Staff: Not unless you disturbed the wiring harness. You can inspect it to be sure, but likely a coincidence. - Nick at Pelican Parts  
ashy Comments: hi nick,my cars a 2001 e39 530i ive checked were your diagram says but its not there only the wiper motor.could my control unit need reprograming by my local BMW garage
they charge £90 per hour
December 16, 2015
  Followup from the Pelican Staff: Modules shouldn't need programming unless replaced or for a service update. - Nick at Pelican Parts  
CloyolaQ Comments: Traductor

Hola Nick muchas gracias por tu respuesta. El día de ayer revicé directamente la computadora de la caja de cambios. Retiré la tapa del módulo y encontré una falla en el transistor BUK 564-PH60. El transistor al estar dañado impide que el módulo se energice y hace que no envíe señal a la caja de cambios. La causa de la falla habría sido la instalación por personas inexpertas de luces de xenon. Las luces tenían sintoma de calentamiento en sus conectores y cables. El amplificador de la radio también estaba con cables quemados. El auto lo compré en ese estado. Saqué todo lo que estaba dañado y hoy repararé el modulo de la caja de cambios. Un saludo y un abrazo desde Chile.
Hi Nick thank you very much for your answer. Yesterday revice computer directly gearbox. I removed the module cover and found a fault in the transistor BUK 564-PH60. The transistor being damaged prevents the module is energized and does not send signal to the gearbox. The cause of the failure would have been the installation of untrained xenon lights. The lights were heating symptom in their connectors and cables. The radio amplifier was also burned cables. I bought the car in that state. I took everything that was damaged and now the module will rebuild the gearbox. A greeting and a hug from Chile.
December 14, 2015
  Followup from the Pelican Staff: You will need a new module. From the looks of it. Also check that there isn't a component drawing too much current. - Nick at Pelican Parts  
CloyolaQ Comments: Hello warm greetings from Chile. I have a BMW 540i 1997. The gearbox is in safe mode. The scanner shows two errors: first code 104 EDS and MV power and code 22 temperature sensor fails AT gearbox oil. It damaged the ecu gearbox? What is the pin from the power supply ECU to check the EDS and MV? Thank you very much for reading this message.
December 12, 2015
  Followup from the Pelican Staff: I don't have the wiring for your vehicle.

This could be a fault at the harness at the transmission or internal wiring. - Nick at Pelican Parts
 
ashy Comments: hi im just reading the artical on trans failerand where the control unit is fitted,left hand side of the engine bay,ive taken out polen filter housing but my wiper motor is there,and its not on the right side of the engine bay ..any ideas where elsebit could be ???
December 10, 2015
  Followup from the Pelican Staff: What vehicle are you working on? - Nick at Pelican Parts  
slammer Comments: I have a 98 528i and the trans seem to be slipping. It is an automatic but I have gone up to 4k RPM and the power just isn't there. If I go thru the lower gears and get the RPMs down the car starts to gain power again. My abs light is on and also a red triangle is lit in the middle of my screen. Any Ideas on what could be wrong? I don't want to dump 3 K$ into a 17 year old car.
December 8, 2015
  Followup from the Pelican Staff: This could be a slip caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip. I would have it checked before it gets much worse. - Nick at Pelican Parts  
marcus Comments: After heavy rain 4 floor boards are wet under all 4 seats now car is in limp mode codes i cant clear are 99 can dme load,and 08 signal mass air flow checked with carsoft did i fry my transmission egs or blow a fuse trying to get her back to shifting correctly i had all 4 door vapor barriers resealed cause all 4 were loose now i gotta see why these 2 codes wont go away
December 8, 2015
  Followup from the Pelican Staff: I would inspect the E-b0x in the engine compartment for water intrusion. If wet, check the seals and drains. - Nick at Pelican Parts  
Amrathe Comments: Hi, I own a e39 525i '03 with the ZF5HP19 Automatic. I have codes showing P0966 and P0970, indicating Pressure Control Solenoid B and C Control Circuit Low. I checked with a BMW reader and it showed PCS B and C having low circuit also and P2763 - Torque Converter Clutch Pressure Control Solenoid Control Circuit High. Do I replace solenoids or rebuild/replace valve body or check something else?
December 4, 2015
  Followup from the Pelican Staff: I would check the wiring and power / ground to the solenoids. It may be an issue with the harness. - Nick at Pelican Parts  
Marvin Comments: Hi, love this site, love/hate my car 2001 525i. Had the transmission go clunk last fall, been sitting in storage ever since, starts up great and goes in reverse but not in forward inches very slowly. Towed it to a shop to get the codes read, what can you tell me about Gear Monitoring 56, 49, 55, and Stall Monitoring 59?
December 4, 2015
  Followup from the Pelican Staff: These are slip codes, from torque converter speed. This could be a slip caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip.
- Nick at Pelican Parts
 
Mendas Comments: hi,i have bmw e39 525i m-sport 2001,the car when cold engine about 30min all times running well,after goes on TRANSFAILSAFE ,drive on 4th gear,was on diagnostic mechanic says,that need to change position sensor,gearbox is ZF,I did it,but its not to help me,again the same,maybe need to change oil,because when cold drive car good about 30 min.sorry for my English. Tanks
November 28, 2015
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
Jason Comments: Edit on my previous comment to fix miss spelling: TCU or ECU. I don't know the correct term
November 27, 2015
  Followup from the Pelican Staff: No problem, I got what you were saying. - Nick at Pelican Parts  
Jason Comments: I have a 2003 530i that intermittently goes into transmission fails are mode. The OBD code I get is P1974 Internal Transmission Control Unit Checksum Error. Could this be a speed sensor or some other I put problem or is the program corrupted in the TVU
November 27, 2015
  Followup from the Pelican Staff: No, that fault code is almost always a faulty control module. - Nick at Pelican Parts  
AndeeB Comments: Hi Nick, thanks for the reply. Ok, so to clarify, if the fuse in the DME is left as is, it last 5 miles exactly, blows and slips into trans failsafe. When it does and the fuse blows, the idle smoothes out ?! You say the misfires are easy to find ?? It has been a miserable 6 months doing so, it has been into BMW main dealer twice, various indys too, aside from that im an old skool ford technician, has made no difference. Smoke tested for leaks, sealed. Compression consistent at 210psi accross all 6 cyls, leakdown test - good results with bery minimum leakage. Been on every possible scan tool, garage equipment. Car can run perfectly for 5 mins to an hour with various playing about with it, but will never run longer than that. Absolutely every sensor and part that would ever relate to these faults has been tested or changed and the problem still remains. Am i missing something, if so please point me in the right direction. I really dont wanna scrap my imola red, factory M5 spec E39, but looks like im gonna have too.
November 26, 2015
  Followup from the Pelican Staff: A short or a misfire can be located by focusing on basics, especially if as repeatable as you state.

For the misfire, you can check the items i noted earlier, as one of them has to be faulty in order to have a misfire.

As far as the fuse, check what loads are on the circuit, then monitor each load when the fuse blows to see which one pulls the current needed to blow the fuse. - Nick at Pelican Parts
 
Will Comments: Well in the message box is says Trans fail safe program I didn't do anything else yet and don't really want to send to the dealer if I can fix myself!!! Thanks for responding
November 25, 2015
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
AndeeB Comments: 2001 E39 528i Auto M-Sport 177k. Constant rough idle, runs for 20/30 mins sometimes perfectly, sometimes on 1,2 or 3 cyls. Over 2k spent in 6 months trying to resolve the problems. Every sensor on car replaced, vanos seals, cats, 02's top & bottom, ignition switch, battery, inlet manifold gasket, CCV and all pipework bmw, smoke tested and all sealed. Throws misfire codes all the time, 02 sensor bank 1 and 2, fuel trim bank 1 & 2, trans blows fuse 3 30 amp in dme block after 5 miles. Gearbox fluid & filter changed. Have to bypass to get it home. Can ANYONE help me as its going to have to be scrappped if it wont go. Thanks in advance .... Andy.
November 24, 2015
  Followup from the Pelican Staff: Focus on one issue, see if remedies them all. For example, the misfire is easy to diagnose. It could be caused by electrical, fuel or mechanical. I would check spark, fuel and compression on all cylinders.
- Nick at Pelican Parts
 
Will Comments: Hello I have a Bmw 2003 5251 trans failure code popped up not sure what to do???
November 21, 2015
  Followup from the Pelican Staff: What is the fault code? Test the component the fault code is indicating is an issue. - Nick at Pelican Parts  
Steve Comments: Hi its a bmw 525i 2001 its moving in one gear I changed the gearbox oil and its giving me a p0705 errow gearbox switch
November 8, 2015
  Followup from the Pelican Staff: The transmission range switch maybe faulty. It is mounted to the side of the transmission. - Nick at Pelican Parts  
steve Comments: thanks a lot I changed the transmission fluid and its giving P0705 gearbox switch error kindly advise how I can change the switch
November 1, 2015
  Followup from the Pelican Staff: What vehicle are you working on? - Nick at Pelican Parts  
Steve Comments: Hi I bought a 1999 528i with a 4L30 and a lot of problems. I suspected the mileage was wrong at 135000 but without being able to verify it i jumped in. to date i have had the ABS module rebuilt, replaced all 4 speed sensors, replaced the output speed sensor, lighting control module, rear window regulators drivers side hub bearing transmission and finally. tie rods. Everything was fine after i changed the last tie rod. It was raining. so i decided to take a little shake down spin. I put it in gear drove forward and punched it expecting the tires to spin. they did for a half second then....ABS, Gear, check engine and traction lights came on and Speeedometer died!!! I immediately suspected that some plug had come undone since the only thing i replaced was a tie rod. The car immediately went into safe mode. it shifts gear manually but wont shift up or down on its own. I scanned it with my creator C110 and came up with a no canbus communication error which I assumed confirmed my suspicion that something came loose. I took it to a local shop my company does business with just to get it in the air and check the connections at the tranny, since I just had it replaced about a month ago. Output speed senor was connected. Gear selector was also collected but I noticed the plastic on all the wires had disintegrated and all the wires were touching!!!! I thought viola! This must be the problem! So I removed it went to the local bone yard hoping to get lucky and I did ...kinda I found a 97 with the same transmission. but its gear selector switch was just as bad as mine! I have yet to install it because I'm thinking this cant be right. But i know for a fact that I drove this car with absolutely no codes except a airbag code which occurred after I recconected the battery prematurely while fixing the passenger side window regulator. Are all these connectors prone to cracking like this and how can the car drive normally with all these wires touching. And not to mention, three additonal wires that are connected to absolutely nothing. I'm going back to get the TCM, just in case. Any suggestions. As you can imagine i'm kinda bummed out. Thanks!
October 25, 2015
  Followup from the Pelican Staff: Repair the wiring first. even if not the root cause of the issue, they have to be fixed. Any electrical shorts will cause issue. Once fixed, recheck for fault codes and driving issues.- Nick at Pelican Parts  
Gray e39 Comments: Hi. I have a 2001 e39 with the GM tranny 5L40e.
The car has 155000 miles. Original oil in the tranny. Never changed.
It shifts smooth but in manual mode it shifts a bit hard between gears.
Since I'm not the original owner I'd like to know if this is normal or if I need to replace the oil and filter and if I do as a preventative maintanande what do you recommend since the original texaco oil it's hard to find anymore.
Also whats the probability since it has high mileage that the car won't drive anymore with the new oil replaced. Heard stories of these type of issues happening.
Thanks,

Silvio
October 23, 2015
  Followup from the Pelican Staff: With t hat kind of mileage, it can be trouble replacing the fluid. You may want to leave it alone. the hard shift may be due to worn clutches or a pressure issue. - Nick at Pelican Parts  
David H Comments: Have a 2002 530i and went thru a very deep puddle and the trans fail safe code came on. Car is slow accelerate but will move. Does something need to dry out or get reset?
October 19, 2015
  Followup from the Pelican Staff: Let is dry, then check and clear fault codes. - Nick at Pelican Parts  
steven chisulo Comments: have a e39 1999 model after changing the airmass it moved well but in the morning it was moving in one gear and failsafe mode error come please help
October 19, 2015
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
Jimmy Comments: You dont think it would help to flush the transmission at all in my case?
October 17, 2015
  Followup from the Pelican Staff: No, not if the issue returns as your does. - Nick at Pelican Parts  
KjoNik Comments: Hi I have a e38 725 tds 1997
It says trans failsafe prog on dash
I did a diagnostic with icarsoft I910 and got failcode "02 solenoid P/N lock"
What is this? How can i fiks it? Were is it located? If you have some pictures or ilustrations it wold be very Nice
Thanx
T
October 15, 2015
  Followup from the Pelican Staff: That is the solenoid for the shift interlock. Check if the circuit is faulty or the solenoid failed. - Nick at Pelican Parts  
Wes Comments: Nick I have 2004 E60 M54 diagnosed 4F83 fault. Does this mean a new gearbox?
October 11, 2015
  Followup from the Pelican Staff: Unfortunately, most times yes. - Nick at Pelican Parts  
Jimmy Comments: A little update: I got fault code P0735 Gear monitoring 5 and p0734 Gear monitoring 4. But after clearing the codes i dont get them anymore, and no Trans Failsafe in the cluster, but the transmission is still muffed up. Thanks.
October 9, 2015
  Followup from the Pelican Staff: Right, there is a slip. Once it reaches the end of the adaptation, the codes will return. - Nick at Pelican Parts  
Jimmy Comments: Hello. i have an 2002 530d e39. Got the "Trans fail prog" message for the first time, and the transmission went to "nutural", no power. turned of the ignition for 1min and then it worked for 1km until it lost power again. And then it started to stop working after justa couple of meters. I changed the oil and the car worked for about about 3km, tought it did the trick, but then i lost power again. What is the problem? A mechanic was telling me i should change filter and oil, or flush the transmission. Is that really enough? or do i need a new transmision.
October 9, 2015
  Followup from the Pelican Staff: Sounds to me like the transmission is worn out. - Nick at Pelican Parts  
Here_to_learn Comments: Hello, I have a e39 530i with 5hp19. Could you please explain to me what "049 31 symptom gear check" means? I know it's a slip related code, but I couldn't find anything more specific. Thank you.
October 6, 2015
  Followup from the Pelican Staff: It means the expected RPM of the transmission is not as expected and a slip is seen. - Nick at Pelican Parts  
Jh Comments: Hi. Got 2001 bmw 525i sedan with auto tranny and sicking at the tranny problem.. 1-3gear workd fine but when it goes above 4th gear, tranny lights on at the dash board and stuck at the 4th gear. When I clear the code, lights off from dash board.
Following to scan tool I got these code with my tranny.

56 Gear Monitoring
58 Gear Monitoring 3/4th gear
49 Gear Monitoring
54 Gear monitoring 4

Considering to change the solenoid but not sure whether it works or not.
Can anybody suggest me something to figure out to solve this problem?
October 2, 2015
  Followup from the Pelican Staff: Sounds to me like the transmission is worn out. First check the fluid level to be sure it is correct.
- Nick at Pelican Parts
 
Greg Comments: Correction from below 99 525 TDS:
It was not the Brake Hydraulic light but the Traction Control light.
September 15, 2015
  Followup from the Pelican Staff: Ok, got it. - Nick at Pelican Parts  
Greg Comments: Hello, I have a 99 E39 525tds. Today I had the DDE Light, the Brake Hydraulic light, the ABS light and the Automatic transmission light illuminate while driving. Additionally, the speedometer and tachometer both went to zero and the engine temperature indicator pegged at full hot but the red band in the gauge did not illuminate. The transmission operated in limp mode in what appeared to be either 3rd or 4th gear. I suspect there is a bad relay somewhere in the electrical system. Does this specific failure point to a single culprit?
September 14, 2015
  Followup from the Pelican Staff: First check for fault codes. I would assume you had a loss of communication, causing modules to go offline, setting multiple warnings. - Nick at Pelican Parts  
joinaunion Comments: Hi. I have a 97 528i. I'm getting code po733. This appears to be gear3 shift ratio error. I was told by mechanic that gear 3 is shot and that i need to get another transmission.
This will cost me almost 2000 bucks. Unless you have some ideas. Thanks.
September 11, 2015
  Followup from the Pelican Staff: if it has been diagnosed, the mechanic is likely correct. If you don't trust the diagnosis, seek a second opinion from another shop. - Nick at Pelican Parts  
Black Comments: Nick Im reading that your the man with the answers. I have a 99 528 with auto trans. The gears shift smoothly when Sunday driving. It is when I click the kickdown button that the transmission stays in high revs for too long that I have to let go off the gas for it to shift into the next gear. In conclusion the trans downshifts but hesitates to switch to the next gear. If I do not click the kickdown button, trans shifts smoothly. No check engine light, last trans oil change was about 2 yes ago. Could it be shift solenoids???
September 9, 2015
  Followup from the Pelican Staff: Could be a pressure issue, when in manual, it can't hit the needed mark. First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
Adeeb Comments: Thanks for previous reply Nick. Looks like I have the following fault codes:
049 - Symptom Gear check
055 - Gear Check 5

Guessing the torque converter is gone? Mechanic suggested rebuild of the trans. All gears work fine except for when I shift up from 4 to 5 - can feel it slip / lag a bit before shifting to 5.
September 6, 2015
  Followup from the Pelican Staff: Could be converter slip, that would be seen in the control solenoid duty cycle, if it maxes out before the fault, you are in the right place. However, you could also have worn internals.. - Nick at Pelican Parts  
shane Comments: HI Nick. I have a 2002 540i motorsport that comes up with trans failsafe. It happened once before and went into limb mode replaced battery and all was good again until it the battery went flat from lack of use and the error code is back again. Every thing is working fine still changes gear great drives great. Seems to happen when the roads are wet if it's fine it doesn't happen. A few times the engine has cut out and died but has restarted straight away any ideas as it has mechanic baffled
September 5, 2015
  Followup from the Pelican Staff: I would have the mechanic check trans pressure control to see if it maxes out when limp mode is imitated. If so, there may be an internal leak or worn part causing a pressure loss. - Nick at Pelican Parts  
Adeeb Comments: I have a e39 530i M-sport 2001. Driving on the highway today in tiptronic mode, I tried shifting to 5th gear and felt a thud/vibration - and it reverted back to 4th gear. Tried shifting again, felt another thud/vibration, and it went back to 4th gear and engaged trans failsafe prog. This left me on 4th gear for the rest of my journey. Reverse worked fine. Once I got home, I turned the car off and started it shortly after, and the error was gone. Took it for a quick drive and shifting on all gears worked fine, including 5th gear. Could this be a sign of the gearbox being dead, or just a glitch? I will take it to get it scanned this week, I don't have my own scanner.
September 4, 2015
  Followup from the Pelican Staff: The fault codes will be key here. It could have been an internal mechanical faulty, or the module getting ready to fail. - Nick at Pelican Parts  
AdamRod Comments: I have a 2001 BMW 325i that is giving me the p0778 code and going into Limp Mode. Sometimes I start the car, see the Gear Exclamation symbol and turn the car off and restart. Then its gone for a while. Then it will come back and stay.

I have checked battery, had the solenoid pack replaced and am getting the Automatic Transmission Fluid changed soon, at just about 100k miles.

I have ZF transmission and I just cannot seem to find any answers online. Right now I am considering the automatic trans wire harness and the ACM module.

Any thoughts on this?
August 26, 2015
  Followup from the Pelican Staff: Sounds to me like the transmission is worn out.

This could be a slip caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip. I would have it checked before it gets much worse. - Nick at Pelican Parts
 
Randy84 Comments: Hi, i have bmw 545i 2005. I was driving the car after 10 minutes of driving, the transmission faulty msg appeared. I turned off the car and then turn it on again, the transmission faulty msg dissapeared. What do you think about it? What can cause trans. Faulty?
Thank you
August 22, 2015
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
pandaxcore Comments: help! BMW e39 2002 525i.
when standing on a little uphillacclivity and slowly releasing the brakes car goes clunktwitches forward and the TRANSFAILSAFE light came on, the car goes to 5th gear.
August 22, 2015
  Followup from the Pelican Staff: Likely a slip or pressure drop caused by worn internals.

First check the transmission fluid level to be sure it is correct.
- Nick at Pelican Parts
 
gapino Comments: I have bmw 318, e46, automatic transmission. it cant engage gear 4 and 5. the idling is not stable, please help
August 18, 2015
  Followup from the Pelican Staff: Check for a vacuum leak or broken intake air hose.

I would start by checking the DME for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
bmw528i Comments: Also very important that the rest of the module worked just fine just could not read or clear error memory on tcm module using bmw tools. This is important because it implied but I still tested that there were no shorts in the power plug so that if you plug in another unit it would also get zapped. There are fuses but they are big amp fuses.
August 16, 2015
  Followup from the Pelican Staff: You want to look for components drawing excessive current when condemning a module. Just as you said, plugging in a new part may zap it as well. - Nick at Pelican Parts  
bmw528i Comments: thanks again nick resolved the problem. swapped tcms and the light went out and the errors are gone but trying to understand how a bad jump from under the hood cables touched caused the error memorywhich I am guessing is an nvram chip to stop working. I assume it has to log the errors into a memory that will survive a dead battery but apparently there is a path for reverse electricity also to zap the chip still working on that but we are up and running hope this helps someone. Summarizing the trans and everything else worked fine in the car but could not erase transmission error codes and the ses light stayed on swapped tcm modules all problems went away and can also read and clear swapped module error memory.
Thanks again
August 16, 2015
  Followup from the Pelican Staff: Faults were likely still on due to a damaged module. The problem with the jump may have been a mis-connection or current spike. - Nick at Pelican Parts  
Derek Comments: I have a bmw 540 and it had a misfire and the timing chain guide was brown and the transmission was going into limp mode I didn't know if they were all connected .. I am fixing the timing chain and misfire now I replaced the fuild and filter in the transmission I hope it works
August 15, 2015
  Followup from the Pelican Staff: Let us know how it works out. - Nick at Pelican Parts  
bmw528i Comments: Thanks nick for your comments. Do you know how the p codes are created? I know inpa puts out digital and hex codes What translates these codes into the pcodes and are they all stored in the same control unit? For some reason I am seeing transmission pcodes from the obd connector and I cannot read the error memory from the tcm with the bmw tools. So I do not know how the obd port can put out p codes about the transmission when I cannot communicate with the module but maybe that is what is happening. If some other module is responsible for error translation to pcodes and it cannot communicate with the tcm it simply puts out all error codes for that unit.
August 13, 2015
  Followup from the Pelican Staff: P-codes are translated by the DME to the generic side of communication. Done internally in the DME. - Nick at Pelican Parts  
D Comments: Can a timing chain casue the transmission to go into limp mode/Failsaife mode on a 1999 540I
August 12, 2015
  Followup from the Pelican Staff: Not likely. - Nick at Pelican Parts  
bmw528i Comments: HI,
Thanks for your reply to my first post. I suspect it would be the tcm but we ran inpa on the tcm and the only thing we could not do is read error memory. when reading or clearing error memory from inpa we get error 19 inh0009 which is failure to communicate with control unit only get this error when trying to read/clear tcmgs20 error memory.Other functions thru inpa worked fine. Also we are able to read all other modules the abs modules has three error codes 2 wss codes for right front and rear wss and the steering angle sensor which has not worked since before this problem because it was a replaced dsc unit to fix problems with internal wires in the dsc.
So we replaced the wss sensors and of course it did not get rid of the codes because I suspect this dsc unit is having the same problems as the first unit internal wires breaking loose. Anyhow the previous dsc with the same problems never effected the tcm.
Summarizing the dsc has codes that we can read from inpa
the tcm we cannot read or clear error memory but all other tests on tcm work fine and the transmission works with no problems. When you read errors with a simple obd reader
we get every p code the transmission puts out about 15 of them like it had become disconnected. Where are these p codes stored and why does error memory on read or clear return error 19 IFH0009 usually a code when you cannot communicate at all with control unit. However we are reading and controlling other items from the tcm control unit.
Can just the error memory be bad in one of these units with no other effects to the transmission?
August 11, 2015
  Followup from the Pelican Staff: INPA is not reliable, unless of course you are a service engineer. The codes don;t always align or display correctly.

My advice is to use an advanced BMW scan tool and perform a full vehicle scan. You may find one or more modules are off-line or have fault codes stored. Look to the areas with the most codes. - Nick at Pelican Parts
 
Hassan Comments: Hi, I have a e39 530d which has started showing the dreaded Trans Failsafe Prog intermittently. It seems to come on when the car has been left for a few hours and once the car is switched off and restarted the messge disappears and car drives as normal. When put on a diagnostic, came up with gear monitoring 3 code. What could be causing this issue? No other warning lights come on and gears seem to change fine unless the trans failsafe prog message comes up and it stays in limp mode until switched on and off.
July 30, 2015
  Followup from the Pelican Staff:
First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.

This could be a slip caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip. I would have it checked before it gets much worse. - Nick at Pelican Parts
 
Tom Comments: Hi good day.I am in need of some help.My remote isn't opening my doors on the 2001 e39 520i bmw.I Tried all the reprogrammed methods I found online but none work for me.I checked all the fuses they are okay.The remote will lock the doors when I press the unlock button and this is confusing.The remote will also open the trunk.When the doors are all lock and I press the unlock button the house light will come on but the doors are not opening.The doors will open and lock with the switch on the centre console.Please help.Thank you.
July 19, 2015
  Followup from the Pelican Staff: You will need to check with the general module to see if it is seeing the remote.

use a BMW scan tool and monitor remote key button activation. You may have a faulty remote, antenna or module. - Nick at Pelican Parts
 
rdl56a Comments: BMW E39 2001 525i with TRANSFAILSAFE alarm. Bavarian Technic diagnostics show 146 CAN Moment Interface TCM, 8 Air Flow Meter DME, and the shift does not shift from Park I have to manually lift lock to put car to other gears.

Findings:
1. Bavarian Technic sometimes can pull the TCM identification parameters, but most of the time, it cannot see attached picture. Also, it sometimes returns Communications Error Unable to connect to this module.
2. Bavarian Technic TCM Actual Values does not return any values for engine speed, output speed, turbine speed, transmission oil temperature, voltage, and all wheel speed sensors
3. Shift level does not shift from Park
4. Car is drivable, but I have to manually lift the metal lock upward I think this lock should come up when the shift lock solenoid is de-activated. Automatic shifting is a bit rough but it shifts to all gears.
5. Stepronic shifting works just fine.
6. I have to mention as well that the key tumbler does not turn to start card tried all keys I have. To start the car, I have to access the ignition switch, insert the key without turning it, and insert a flat screwdriver into the ignition switch, and turn.

Troubleshooting Performed:
1. DC supplies to the TCM are good X7001 pins 1,7,8,9
2. Confirmed that TCM sends ground to X7002 pin 2 when the break is pressed, but shift lock solenoid does not de-activate to unlock the shift - bad solenoid?
3. DC voltages present at X7002 pins 18, 19, 20 - +10.1VDC
4. DC voltages present at X7003 pins 1,2,3,11
5. 2.2VDC measured at X7003 pins 18,19 transmission oil temperature
6. 0VDC at X7003 pins 23,24,25 Turbine Speed Sensor
7. 0VRC at X7002 pins 38, 39, 40 Output Speed Sensor
8. 2.6VDC X7003 pin 36 to GND CAN Bus High
9. 2.3VDC X7003 pin 37 to GND CAN Bus Low

Questions/Action Items
1. Replace the TCM Siemens 5WK33502AG GS20 SW64 with exact part number. Is there a need for coding/re-
flashing/programming when replacing the GS20 TCM?
2. Replace the MAF sensor I have read in BMW forums that this sometimes correct TRANSFAILSAFE alarms
3. Replace shift lock solenoid if not corrected when replacing the TCM.
4. Is there a relationship between the key not turning and the shift not shifting from Park to other gears? I am aware of the interlock cable from the shift lever to the key hole, but I think the function of that cable is to allow removing the key when shift is in Park.

Appreciate any help to my questions. Thanks.
July 13, 2015
  Followup from the Pelican Staff: The screenshot is too small to read.

1. you will have to code the control module
2. I have not seen that.
3. I would manually activate it, see if it can release. Use fused power and ground.
4. Yes, there should be a cable that runs from the lock to the solenoid. (going by memory)- Nick at Pelican Parts
 
Tom Comments: Thank you Nick for your help. I will check the fan this weekend.
July 10, 2015
  Followup from the Pelican Staff: Let me know what you find. - Nick at Pelican Parts  
Tom. Comments: Hi good evening.My 2001 E39 520i bmw auxiliary fan isn't coming on.I checked the large fuse under the glove compartment and it's ok,I changed the temperature sensor on the bottom radiator hose,I tested the fan on a direct 12volt and it's ok. Please help. Thank you.
July 9, 2015
  Followup from the Pelican Staff: Does the fan have power and ground when off? The problem could be with the DME. I would use a BMW scan tool to command the fan ON. - Nick at Pelican Parts  
Tom Comments: Thank you very much Nick for your quick response.
July 9, 2015
  Followup from the Pelican Staff: no problem. - Nick at Pelican Parts  
Ben Comments: Hi. I have a BMW X5 4.4i. It goes into TRANSFAILSAFE and locks into 5th gear therefore I assume a mechanical malfunction.
1. The car works fine for approx 10 minutes with accelerating and decelerating around town.
2. After it has warmed up and I come to a stop or slow down it does a slight clunk when switching gears down
3. The next time I try to accelerate it will perform an abrupt gear change to 5th and display TRANSFAILSAFE.
Please help, Thanks
July 8, 2015
  Followup from the Pelican Staff:
First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing. - Nick at Pelican Parts
 
Tom Comments: Hi I have a 2001 e39 520i bmw.The transmission had a fail safe code that said automatic control module output shortage.First it was only in the fifth gear and yesterday it was only moving in the first and second gear.Please help.Thanks.
July 7, 2015
  Followup from the Pelican Staff: If you have a fault for module failure, I would start there. Check that the module has good power and ground, if so it may be faulty. - Nick at Pelican Parts  
bmw528i Comments: 2000 528I a5s360r TRANS WITH ags 20 control unit. Started with jump start with positive and negative cables touched ignition was off. Car came back with ses light on no limp mode indicator and transmission worked fine. Read codes with autologic and erased codes trans went into limp mode with icon. Reread codes trans came out of limp mode and works fine again codes are all similar to te ones you have bmw suggestiioning reprogramming tcm. Should I check the wires on this tcm similar to what you did. I have the blue plastic connectors if you are familiar.
June 29, 2015
  Followup from the Pelican Staff: you could have shorted the controller during the jump start. Usually they won't communicate though. - Nick at Pelican Parts  
mike Comments: My 99 528i will go into fail safe but it will also stall...is this also a normal sighn? Trans lite comes on car goes limp and will stall.somtimes can just back off and be ok
June 27, 2015
  Followup from the Pelican Staff: Could be many things. I would start by checking the vehicle for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
blaze8542 Comments: I have a 2003 530i. I'm getting Trans Failsafe on the dash and codes P0720, 065 41 Gear Monitoring, and 168 A8 thermostat map cooling. Car is stuck in 3rd gear. Could it be a sensor or the transmission? Thank you!
June 25, 2015
  Followup from the Pelican Staff: This could be a slip caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip. I would have it checked before it gets much worse. - Nick at Pelican Parts  
John Comments: I have 1998 BMW E38 740i. Occasionally, the shift points are elevated, almost as if you were driving a race car, for instance, car will not go into 5th gear until about 4000 rpm. Everything else is normal. Transmission fluid is new and at proper levels. No OBDC error codes, is there are separate test for TCM error codes other than OBDC? Problem disappears by turning off car for about 30 minutes, then all is good for either an hour, or a week, no way to predict which. Shifting is perfectly smooth. I suspect a component in the TCM is overheating. But this is just a hunch based on elimination of other possibilities. Any suggestions how to proceed? Problem has been happening for over a year, only downside is decreased fuel mileage, and overworking the transmission, it is just like driving on a racetrack.
June 10, 2015
  Followup from the Pelican Staff: This could be a slip caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip. I would have it checked before it gets much worse.Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing. You will need a BMW scan tool to read the fault codes.
- Nick at Pelican Parts
 
hpaulb Comments: 98 740i.Fail safe error was on a year ago then disappeared. Stored the car for the winter and it's back. Got a P1734 with my OBD2 reader. Control Solenoid B. Don't see any reference to which one this is? Also have the ABS and traction control dash lights lit. Could the failsafe be from a wheel sensor and not the control module?
June 3, 2015
  Followup from the Pelican Staff: Unlikely. I would assume the fail safe error is related to the pressure control solenoid fault. The solenoid is internal to the transmission. I would start there. - Nick at Pelican Parts  
taresa Comments: I have 2002 525i, was running perfect, until it stormed with lots of rain, I had to drive in wet roads. The next day trans fail safe mode come on and car is sluggish until I hit about 15-20 mph, then drives fine, but fail safe mode still on. What and where are the 2 electrical connectors on the transmission that I need to be looking at to dry them out, or what do you suggest I do to remedy this?
May 31, 2015
  Followup from the Pelican Staff: The connectors at the transmission shouldn't be affected by rain, as they are weather tight. Look at the side or front or the transmission, depending on what transmission you vehicle has.
First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
joe Comments: Bmw 540i 1998trans failsafe prog on ihave a code p0720output speed sensor I do not want to change the incorrect parts I disconnected the battery for 24 hours to reset the computer started the car check engine light went off but before I could put it in gear check engine light came on and I will step back and limp mode again does this mean its not a center and actually the transmission or am I still okay with just being sensorshow do I ask another question when you answer
May 28, 2015
  Followup from the Pelican Staff: You can check the sensor signal, to see if it working.

Is there a slip related to the fault or a hard shift? This could be a slip caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip.

- Nick at Pelican Parts
 
joe Comments: 1998 bmw 540i where is the tcm located and which scan tool is needed obd2?
May 25, 2015
  Followup from the Pelican Staff: The location is shown in this article:

http://www.pelicanparts.com/BMW/techarticles/BMW-5-Series-E39/90-TRANS-Automatic_Trans_Fail_Safe/90-TRANS-Automatic_Trans_Fail_Safe.htm

What are you trying to do with the scan tool? Just read codes, and OBD II will work, advanced diagnosis, you will need something like an Autologic. - Nick at Pelican Parts
 
Brad Comments: snap on scan tool. will not communicate with ABS module or the airbag module.
April 16, 2015
  Followup from the Pelican Staff: If it only talks to the DME, it is likely communicating on the generic side. On 6-cylinder models the AGS data is on Pin 7 and DME on pin 9 of the DLC. You will have to check for data on each line. This could be your scan tool or shorted data lines. - Nick at Pelican Parts  
Brad Comments: 2003 530i
Transfailsafe warning. unable to communicate to transmission module to read fault codes. bought used module on ebay with same serial num. still unable to communicate to module.
April 15, 2015
  Followup from the Pelican Staff: What scan tool? What other modules can you communicate with? Please list. - Nick at Pelican Parts  
HM Comments: I have a 2001 530I that does not reverse, it goes forward but no reverse, what could be issue. I believe it may be the tranny.
March 24, 2015
  Followup from the Pelican Staff: Automatic or manual? - Nick at Pelican Parts  
lifeintransit Comments: I have a 1998 E39 525 tds - did a full service on gearbox, new filter and seal and 10.6 litres of fluid as instructed by BMW. Gearbox warning light is on orange cog with exclamation mark and it changes hard. Seems to be stuck in 4th or 5th gear so I assume it's stuck in limp mode. Don't understand why it's happened as it was running perfectly before.
March 22, 2015
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing. Could be a simple misstep or a major problem. - Nick at Pelican Parts  
Bimmergirl Comments: I have a 2003 525I and in october the trans fail safe code popped up and my car has been stuck in limp mode since. At first the car would not move or hold a charge at all. After replacing the battery the car started and I was able to get it moved but it will not shift out of 2nd or 3rd gear. Would a loose ground connection cause this code and problem? Any insight would be appreciated.
March 21, 2015
  Followup from the Pelican Staff: Sounds to me like the transmission is worn out.

First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.

- Nick at Pelican Parts
 
Ronnie Comments: I have a 1998 e39 540i can I drive the car with unplugged ABS control unit?.....thanks
March 16, 2015
  Followup from the Pelican Staff: Technically yes, although not safe. You will lose ABS braking and the ability to be warned of faults due to the warning lights on the instrument panel being illuminated. Depending on where you live, this may also be a violation of vehicle inspection. - Nick at Pelican Parts  
Ronnie Comments: Hi I have a 1998 e39 540i while Im driving for about 30 mins suddenly slowing down until its not moving at all its like all brakes are lock-up and the pedal was really hard to press h.had to wait for about half hour then everything back to normal what it seems to be the problem?......thanks
March 14, 2015
  Followup from the Pelican Staff: You could have a faulty brake booster or hydraulic component. Check if loosening the master cylinder bolts relieves brake pressure.- Nick at Pelican Parts  
Tareq Comments: I have e39 528i and there is no fulty reading comes in the computer, but the transmission keep play between the fourth and the fifth gear,I checked the oil lvl was good what could be the problem , and would itbe easy to fix?? Thanks
February 21, 2015
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.

This could be a slip caused by low fluid or low pressure. Start by checking your fluid level. If it is OK, you may have worn parts causing a pressure drop and slip. I would have it checked before it gets much worse. - Nick at Pelican Parts
 
Marcus Comments: I have the po761 code stating that shift solenoid 3 is disconnected. Possible causes indicate low fluid or dirty or poor or no connection. Could this problem also derive from the trans Ecu connections or do you think it most likely needs a replacement . When I clear the code the trans shifts smoothly through all gears for about an hour or less until it goes into limp mode. It's a 2003 540i
February 21, 2015
  Followup from the Pelican Staff: I would assume the solenoid or the wiring is faulty. Haven't seen fluid level set that one. - Nick at Pelican Parts  
asmith357 Comments: Can I replace my TCM in my 97 528i with one from another 97 528i WITHOUT having it reprogrammed ? Just plug and play ?
February 17, 2015
  Followup from the Pelican Staff: If it is the same vehicle and part number, yes. - Nick at Pelican Parts  
SKIPP Comments: QUESTION REPLY BACK TO NICK I CHECK FLUID IT WAS A LITTLE DARK AND I DID A TRANSMISSION SERVICE CAR STILL SLIP WHEN TURNING AND GOING UP HILLS INTO TRANS FAIL SAFE MODE CODES I GET IS GEAR MONITOR FAULT I RESET IT AND DRIVE AND THE CODE COMES BACK WHEN GEAR SLIPS ONLY DOES IT WHEN THE CAR IS HOT CHECK COOLER LINE BOTH ARE VERY HOT I THOUGHT ONE SHOULD BE A LITTLE WARMER THAN THE OTHER
January 26, 2015
  Followup from the Pelican Staff: Limp mode means there is a fault. check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing. - Nick at Pelican Parts  
Skipp Comments: I have a 2003 Land Rover Range rover and i no bmw makes range rover becauses all the parts have bmw logo on them I two have the trans fail safe mode on i changed oil cooler, radiator, did not check fluid yet I got codes back like, GEAR MONITOR FAULT, STALL SPEED
January 23, 2015
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing. - Nick at Pelican Parts  
just ice Comments: Mw 5series E39 is indicating slow cat overheat. Wat could be the problem
December 30, 2014
  Followup from the Pelican Staff: You could have an engine misfire causing the cat to overheat. - Nick at Pelican Parts  
chuks Comments: Fault code thrown up is P0748 -Pressure Control Solenoid "A" Electrical.
Tried a DIY to locate which of them is the Culprit after draining the trans. oil from the case and removing the pan and filter. please directions on what next to do?
December 13, 2014
  Followup from the Pelican Staff: We don't currently have that tech article. If we get a chance to perform the procedure, we will be sure to document it.

I would grab a repair manual. It will have the procedure, special tools and torque specs.

Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
CHUKS Comments: Hi, I have E39 520i 2001. In the mornings, the trans fail safe indicator shows up, but after driving a couple of kilometers, it goes off when u turn off the engine and turn on again, ride is smooth for rest part of the day, till engine cools down and u are back to square one!
December 2, 2014
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
Mark Comments: 2003 e39 525 with 52,400kms
Transfailsafe warning and red arrow from time to time. Can restart and get it to clear for remainder of the drive. Just bought from a little old man, properly hasn't had a transmission service in its life. Do you have any ideas where to start? Or what it could be?
November 25, 2014
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
just ice Comments: Have a 2002 e39 model. It is displaying asc triangle fault and abs fault. It changes into third, fourth and fifth gears only on high revs. I then removed the asc control unit and drove without it and it is now shifting gears normally.please help what could be the fault
November 19, 2014
  Followup from the Pelican Staff: Could be a speed sensor or data bus fault. I would start by checking the vehicle for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
just ice Comments: Bmw not finishing all gears
November 19, 2014
  Followup from the Pelican Staff: Ok, got it. - Nick at Pelican Parts  
wally Comments: Hi I have a E39 740 I 1997 ,,, dash says TRANSFAILSAFE ,, it is in lowest gear ,, but when I drive it to six thousand revs it changes to third gear and then the same to fourth and with fifth car pulls like a *#*# lol but doesn't change gear nomally ,,, please help ,, thanx
November 2, 2014
  Followup from the Pelican Staff: First check the transmission fluid level to be sure it is correct. Then check the transmission ECM for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 

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