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Power Window Switch Replacement
 
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Pelican Technical Article:

Power Window Switch Replacement

Nick Czerula

Time:

2 hours2 hrs

Tab:

$100

Talent:

***

Tools:

Plastic prying tool, DVOM

Applicable Models:

Volvo V70 (1998-01)
Volvo V70 2.4T (2001)
Volvo V70 AWD (1998-99)
Volvo V70 GLT (1998-00)
Volvo V70 GLT SE (2000)
Volvo V70 R (1998)
Volvo V70 R AWD (1999-00)
Volvo V70 T5 (1998-01)
Volvo V70 X/C (2001)
Volvo V70 X/C AWD (1998-00)
Volvo V70 X/C AWD SE (2000)

Parts Required:

Window switch

Hot Tip:

Be careful not to damage door panel when removing

Performance Gain:

Proper power window function

Complementary Modification:

Clean under your door panel

Volvo V70 power windows are controlled via electronic switches that drive a D/C electric motor. The electric motor moves the window up or down using a window regulator. The window regulator is the mechanical track and guide for lifting the door window glass. The regulators are constructed of metal rails with a gear driven track.

The main window switch, located in the left side door panel, can control all of the windows and cut off function of the rear windows via the rear lockout ON: OFF switch. If you have two rear windows that do not work, check the power feed from the ON: OFF switch. It may be faulty. If multiple windows do not work, it could be the main switch or the circuit breaker for the power windows. At the end of this article, I will highlight a few areas for testing to determine what your problem may be. The testing wiring and specifications are from a 1999 V70 base model. Be sure to check a wiring diagram for your vehicle to see if they are similar.

Window switches fail and wear out over time, leaving you with a non-functioning window in one or both directions. If you are left to deal with any of these problems, this tech article will show you how to replace the seat switches.

When testing window motors, be sure to keep yourself and your clothing clear of the seat, as it could move. You don't want to get snagged or pinched while working on it.

Interior trim pieces and switches in Volvo V70 cars are made of preformed hard plastic. Plastic clips or metal screws are sometimes used to hold them in place. To avoid marring the trim, work with a plastic prying tool or wrap a screwdriver tip with masking tape before prying out trim panels, switches or electrical accessories.

Keep in mind that when your car was serviced before, parts may have been replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have, so be prepared with different size sockets and wrenches.

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If you're working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Do not work on your vehicle if you feel the task is beyond your ability.

Vehicle models change and evolve, as they grow older, so the vehicle shown in our illustrations may vary slightly from yours. If something seems different, let us know and share your info to help other users. Do you have questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information.

The main window switch, located in the left side door panel, can control all of the windows and cut off function of the rear windows via the rear lockout ON: OFF switch (red arrow).
Figure 1

The main window switch, located in the left side door panel, can control all of the windows and cut off function of the rear windows via the rear lockout ON: OFF switch (red arrow).

Using a plastic prying tool, lever the switch up at the side.
Figure 2

Using a plastic prying tool, lever the switch up at the side. Once the side of the switch closest to the interior is slightly up, pull the opposite edge up and out of the door panel.

Pull the window switch assembly straight up to remove it.
Figure 3

Pull the window switch assembly straight up to remove it.

Flip the window switch over.
Figure 4

Flip the window switch over. Then disconnect the mirror control connector by pressing the release tab and pulling it straight out.

Then disconnect the power window switch electrical connectors by pressing the release tabs (red arrows) and pulling them straight out.
Figure 5

Then disconnect the power window switch electrical connectors by pressing the release tabs (red arrows) and pulling them straight out.

Switch testing: This photo shows the front connector (front power window controls).
Figure 6

Switch testing: This photo shows the front connector (front power window controls). Connect a DVOM black lead to the battery negative and the positive lead will be used to probe each wire. The readings need to be taken with the key ON and the engine OFF. The red arrow right front window is - Battery volts or battery ground, depending on window direction. The blue arrow right front window is: Battery volts or battery ground, depending on window direction. The yellow arrow left front window is: Battery volts or battery ground, depending on window direction. The green arrow left front window is: Battery volts or battery ground, depending on window direction.

Switch testing: The yellow arrow indicates the power from the circuit breaker: Battery volts.
Figure 7

Switch testing: The yellow arrow indicates the power from the circuit breaker: Battery volts. The green arrow denotes the switch ground -battery ground.

Switch testing: The green arrow is for the left rear window: Battery volts or battery ground, depending on window direction.
Figure 8

Switch testing: The green arrow is for the left rear window: Battery volts or battery ground, depending on window direction. The yellow arrow is for the right rear window: Battery volts or battery ground, depending on window direction.

Switch testing: The yellow arrow points to the left rear window: Battery volts or battery ground, depending on window direction.
Figure 9

Switch testing: The yellow arrow points to the left rear window: Battery volts or battery ground, depending on window direction. The green arrow indicates the rear window lockout switch - Battery volts switch ON or battery ground switch OFF. The blue arrow is for the power window switch battery power - Battery volts. The red arrow shows the right rear window: Battery volts or battery ground, depending on window direction.

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