Window troubles

Tiny
JOHN LEBLEBOOJIAN
  • MEMBER
  • 2002 CADILLAC DEVILLE
  • 4.6L
  • V8
  • FWD
  • AUTOMATIC
  • 86,000 MILES
The divers side window controls operates all windows up and down. The rest of the window controls only work going up not down same with the door locks.
Tuesday, August 15th, 2017 AT 4:18 PM

2 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Hello,

It sounds like the main switch is out which supplies the ground and power for the rest of the windows. Here is a guide to help you get the switch replaced:

https://www.2carpros.com/articles/electric-window-repair

Please let us know what happens.

Cheers, Ken
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Wednesday, August 16th, 2017 AT 8:36 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,465 POSTS
So all the windows roll up with their switches, but down is only from the drivers master switch, and the door locks will only lock from the drivers door switch but unlock from the other switches?

What do the locks do from the remote?

It almost sounds like the drivers door module is sending out data on the serial bus telling the other modules to lock out the window controls and door locks. Have you tried disconnecting the drivers door module and seeing if control returns to the other doors?
Was this something that just happened ie: it all worked fine and then this, or have the controls dropped of one by one?
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Wednesday, August 16th, 2017 AT 9:30 PM

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