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Door not working, Need help tracing a wire

ChrisSalter Jun 12, 2018

  1. ChrisSalter

    ChrisSalter New Member

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    Hi All,

    So some time ago my rear left door stopped locking/unlocking and just appeared dead.
    I've finally gotten around to looking at the issue and started by testing the components of the door

    So i've tested:
    1. Actuator
    2. Module
    3. internal door loom
    (All were tested by removal and connection to the other side door)

    All appeared fine but i did find 1 anomaly in the door pillar plug

    There is a violet/grey (photo attached) wire in the plug and it has a voltage varying from 3-10v, on the other 3 doors this same colored wire has no measurable voltage at all so i'm thinking this could be a step in the right direction

    The question i have is, does anybody have any diagrams that show where this wire goes? What it is? and where i can find the other end of it?

    Once i know where it goes i can do some continuity/short tests and try to identify why this particular door has a voltage that the others don't

    Please help....
     

    Attached Files:

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  3. Stonefish

    Stonefish Active Member

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    J388 Rear Passenger control module pin 10/T20h ----> pin 6/T27d (ringed in your picture, B-pillar) ----> pin6/T27c (A-pillar) ----> pin 10/T20g J387 Front Passenger control module.
    T27 is a 27 pin connector. T20 is a 20 pin.
     
    ChrisSalter likes this.
  4. ChrisSalter

    ChrisSalter New Member

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    You are a god! Thankyou :)
     
  5. ChrisSalter

    ChrisSalter New Member

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    I’d just like to say a HUGE thankyou, this comment led me directly to a resolution and the door is now working and fully operational again

    For any that are interested, i’ve uploaded an image of the offending wire, it’s the violet/grey wire in the left of the image, it must have been nicked in what looks like a historic repair, had corroded and broken
     

    Attached Files:

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