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  1. #1

    Default 07 express power mirror problems

    I'm new here, but I have an 07 express 2500HD with 6.0, I had manual mirrors on the van and I have swapped them for some heated,power and signal mirrors, I plugged tghe mirrors in and installed a new mirror switch and nothing is working. Is there a relay that I'm missing or fuse? I checked under the seat and hood and put fuses were they were missing for driver and pass. mirror.

  2. #2

    Default

    Some options need to have the BCM re-flashed. Try calling the dealer service area and ask if this might be one of those options.
    Ray

    '09 Avalanche LTZ - Black
    '05 Envoy XL (sold)

  3. #3

    Default

    Well it looks like the body harness that connects to the door harness is missing some wires. I guess I will have to source a van from the wrecking yard, anybody else ran into this? Everything I've read so far searching says its plug and play for every van except mine I guess.

  4. #4
    Jr. Apprentice
    Join Date
    Apr 2012
    Location
    Albany, NY
    Posts
    19

    Default

    You can download the wiring diagrams from autozone.Com. You have to sign up for A free account. Add the van to your garage.
    Click on repair guides. Click on wiring diagrams.

    They are factory spec manuals.

    The problem is that the schematics jump around different diagrams to get a good idea of how it works.

    Take a picture of your rpo placard from the passenger door.

  5. #5
    Jr. Apprentice
    Join Date
    Apr 2012
    Location
    Albany, NY
    Posts
    19

    Default

    If you go to the lower sections called wiring info. It will tell you what connectors you need terminals for..

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