Power Windows and Sunroof electrical

Tiny
JOE MORLEY
  • MEMBER
  • 2000 VOLVO XC70
  • 5 CYL
  • TURBO
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
They both work intermittently, and only right after the car is turned on, and only for a minute. Then they stop. If I turn the car off and let it sit for a little bit, they sometimes start working again (and sometimes not).

Not the switch as one switch does not control both, but they are on the same relay. But a relay I would think would just fail or not. What is the missing link?
Monday, June 13th, 2016 AT 4:00 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,840 POSTS
Joe,

It soudns like the window control module is going out, here is a wiring diagram that shows it control both the windows and the sunroof. Let me know hat happens so it will help others

Best, Ken
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Wednesday, June 15th, 2016 AT 8:27 PM

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