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Thread: Rear Hatch Problem

  1. #1
    Join Date
    Mar 2013
    Location
    Boynton Beach, FL
    Posts
    2

    Default Rear Hatch Problem

    Neither the FOB or the dash switch will open the rear hatch. I grounded the switch lines 30 and 87 for Micro Relay (39) on the fuse block and the hatch opens with the actuators. Fuse and relay are both good. Does anyone have a wiring diagram they could forward. Any help would be greatly appreciated.

  2. #2
    Join Date
    Mar 2013
    Location
    Boynton Beach, FL
    Posts
    2

    Default

    Sorry, forgot to mention this is a 2003 50th automatic.

  3. #3

    Default

    HI there,

    The control for this function is all out of the body control module.

    The switch tells the BCM to turn on the relay, creating the opening of the rear hatch.

    Honestly, the next step is to scan the BCM data to see if its getting the request to open the hatch.

    Allthebest, Paul
    GM World Class Certified Service Technician.
    Like us on Facebook: www.facebook.com/corvettemechanic
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  4. #4

    Default

    You can open the hatch on my 2002 C5 with the door key in the door. one turn unlocks driver door, two turns unlock the passenger door, and three turns will open the hatch. It might work on your car.

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