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Switches Gradually Stopped Working on All Doors


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John Hawk
New User

Jun 24, 2018, 1:32 PM

Post #1 of 5 (195 views)
post icon Switches Gradually Stopped Working on All Doors Sign In

2008 Chevrolet Silverado 2500HD LTZ, DURAMAX 6.6L V8 TURBO DIESEL, 4WD Crew Cab
First, both of the rear door window switches stopped working...
Then, after some time, all the driver door switches stopped working, except for the door lock switch.
But the driver door lock switch will not lock/unlock the driver door. However, it will lock/unlock the other three doors just fine.
If anyone has any idea on what needs replacing I would appreciate any help you can offer.
Thanks.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 24, 2018, 2:31 PM

Post #2 of 5 (191 views)
Re: Switches Gradually Stopped Working on All Doors Sign In

There are 2 different possible window systems and they are very different.

You need to check the RPO code sticker in the glove box and look for either of these codes "AN3 or DL3"



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Jun 24, 2018, 2:34 PM)


John Hawk
New User

Jun 27, 2018, 7:01 PM

Post #3 of 5 (137 views)
Re: Switches Gradually Stopped Working on All Doors Sign In

The code in the glove box is: AN3. Thanks for helping.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 27, 2018, 7:10 PM

Post #4 of 5 (133 views)
Re: Switches Gradually Stopped Working on All Doors Sign In

Here is the wiring diagram. This system works through the Body Control Module so you are going to need a high end professional scan tool to get into the system.






~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



John Hawk
New User

Jun 30, 2018, 9:01 AM

Post #5 of 5 (97 views)
post icon Re: Switches Gradually Stopped Working on All Doors Sign In

Ok thanks. I guess it's not a do-it-yourself fix then. Bummer


(This post was edited by John Hawk on Jun 30, 2018, 9:03 AM)






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