Drivers window switch HELP!
Thread Starter
Burning Brakes
Joined: May 2007
Posts: 1,047
Likes: 2
From: Denver CO
Drivers window switch HELP!
I've searched and found a ton of info on a subject similar to this but I think I have a slightly different problem that I could use some help on. '02 C5, drivers window switch does not work for the drivers door lock or the drivers window, doesn't even click. The mirrors will adjust and the passenger window will operate from the drivers switch. But when I try and operate the drivers window and/or lock I don't even hear a click. I've tried banging the door panel while using the switch, I've tried moving the wire harness in the jamb while moving the switch, I've even checked the pin fit on the switch. One other thing, the drivers door used to unlock with the fob but would not lock, now it won't do either. I've ordered both relays from digikey but I'm not so sure that will solve my problem.
Any help would be greatly appreciated.
Any help would be greatly appreciated.
Safety Car
Joined: Jan 2007
Posts: 4,300
Likes: 6
From: San Antonio Texas
I don't know about foreign cars, but window hardware on all brands of American cars is a frequent source of complaints.
Frankly, it has been that way since at least 1964 on Fords. GMs used to be good.
GM has been lacking in the window area for quite a few years now.
Frankly, it has been that way since at least 1964 on Fords. GMs used to be good.
GM has been lacking in the window area for quite a few years now.
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
Those commands go directly into the left door control module. I would remove the door panel trim and look at the connectors on the LDCM. Check for water damage or corrosion on the contacts.
Melting Slicks
Joined: Jul 2006
Posts: 2,332
Likes: 31
From: Silver Spring MD
If the fobs wont work it MUST be in the control module
I had a problem Locking and Unlocking the doors with the driver control switch. It really was the switch gone bad inside the flimsy electronic switch mechanism that has mirrors, memory, windows, and lock/unlock.
Luckily I found a USED but GOOD switch module on fleebay for about $35 while the new one was about $100. Your problem sounds like its in the door control module. If it was just in the switch the fobs should still work.
BIGHANK
Luckily I found a USED but GOOD switch module on fleebay for about $35 while the new one was about $100. Your problem sounds like its in the door control module. If it was just in the switch the fobs should still work.
BIGHANK
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
I'd trace the wiring from the connector in the door jamb through to the LDCM. Look for corrosion or bad connectors. If not I'd guess that its the module gone bad and the relays may fix it.
Racer
Joined: Jun 2003
Posts: 256
Likes: 0
From: Newport Beach Ca
And take a look at the female sides of all those connectors. I've found them open so far that the male pin won't make contact. Reshape them as you might need to insure you've got good contacts.
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Thread Starter
Burning Brakes
Joined: May 2007
Posts: 1,047
Likes: 2
From: Denver CO
Thanx for all of your excellent suggestions. Here's what the out come was. I replaced the relays in the LDCM because of the commonality of the problem. After replacing the relays the door worked perfectly for exactly 30 minutes then it went back to its old ways. I pulled the door panel off again last night and found the grey wire, black wire and green wire in the harness underneath the foam wrap crushed by the #30 torx screw that secures the door panel behind the grab handle. I repaired the wires with butt connectors. It's been longer than 30 minutes so I'm assuming all is well.
Thanx again for taking the time to read and respond.
Thanx again for taking the time to read and respond.
