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Thread: ELECTRIC DOOR-LOCKS....TROUBLE-SHOOTING

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    ELECTRIC DOOR-LOCKS....TROUBLE-SHOOTING

    My '86 electric locks -just- stopped working,,

    ........I checked the fuse diagram, but it doesn't list the doorlocks,,
    ...checked the search here,,couldn't find anything under 'electric locks',,,,so here I am

    hoping someone can give me a clue,,,is there a breaker for these?...or do they piggyback on a circuit.


    ....and beyond fuses,breakers,,,,what might I try next??


    me's a bit desperate on this,,my key only works on driver door,,the electric locks are kinda essential

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    Re: ELECTRIC DOOR-LOCKS....TROUBLE-SHOOTING

    Here's a schematic from the 87 factory service manual.




    The door locks get their power from the circuit breaker on the top right (see figure below)



    Good Luck! Tim

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    Re: ELECTRIC DOOR-LOCKS....TROUBLE-SHOOTING

    .
    ...thanks for the details Timsrv,,,,(un)fortunately all was working fine yesterday when I went back out,,and still is.....not much to fix when it's working

    It makes me wonder if the circuit breakers can 're-set' themselves?

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    Re: ELECTRIC DOOR-LOCKS....TROUBLE-SHOOTING

    Not sure if you have the master lock switch on the door or on the dash, but if it's on the door, a weak spot, is the wires where they go between the door and the body. Over the years the strands inside can fracture/break from all the opening/closing of the door. This type issue can result in intermittent problems. FYI, These type circuit breakers do not reset themselves. If blown they need to be manually reset. Tim

  5. #5
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    Re: ELECTRIC DOOR-LOCKS....TROUBLE-SHOOTING

    ...hmmm,,strangely the master switch is on the dash,, so there shouldn't be that flex issue.

    Seems like the mystery continues for now.



    While you're here,,,another item that's stopped working is the front window washer. I've got the simple type of control arm on the steering column,, push towards column to activate washer, but not working,no 'whirring' sound from the pump,, yet the pump sounds-off when I activate the rear washer.
    ....There's no label on the fusebox for the washer pump,,do you know which fuse it rides with?
    .....I assume there are 2 separate pumps on same fuse,, so likely not a fuse issue anyways.
    ....I'm guessing there could be a stressed wire issue in the steering column?
    ...Any idea which wires I'd grab to create a bypass switch?? ...or other suggestion?


    ...many thanks again for your assistance!!

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    Re: ELECTRIC DOOR-LOCKS....TROUBLE-SHOOTING

    Wipers/washers are different subject and should be posted in a different thread. A quick search will bring up results. Try "washer motor" and I think you'll find what you need. If not, please post your question in one of those threads and I'll be happy to answer questions or assist you there. Another thing worth mentioning is there's a free downloadable PDF of the 87 Factory Service Manual HERE: http://www51.zippyshare.com/v/19640361/file.html. If you go to PDF page #1015 you will find electrical schematics for the van start there. Wipers/Washers are covered on PDF page #1019. Have fun. Tim

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    Re: ELECTRIC DOOR-LOCKS....TROUBLE-SHOOTING

    My power unlock switch has stopped working. Hoping it's just cause it has been sitting in the sun. Lock switch works just fine, could there be any other cause of this than the switch itself? If it's the switch, can I fix it or will it need to be replaced? I've sprayed a contact cleaner in the switch (unplugged ofc) within the last couple months so I'm not confident that will help

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    Re: ELECTRIC DOOR-LOCKS....TROUBLE-SHOOTING

    On mine the wire broke in the harness in the door jamb.

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    Re: ELECTRIC DOOR-LOCKS....TROUBLE-SHOOTING

    Quote Originally Posted by originalkwyjibo View Post
    On mine the wire broke in the harness in the door jamb.
    If that were the case wouldn't the driver's door unlock but not the others? Or does it have to complete the circuit before it unlocks all the doors?

  10. #10
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    Re: ELECTRIC DOOR-LOCKS....TROUBLE-SHOOTING

    The wire that broke on mine is the main ground to the switches.

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