Chasing A Problem

Discussion in 'Maintenance/Repair' started by TRUCK ACTION, Feb 14, 2021.

  1. TRUCK ACTION

    TRUCK ACTION Grand Toyotaholic

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    So a problem popped up while resetting the timing for smog check I noticed that a fuse that is part of my alarm system had popped. Seems that when the doors open it pops, the door pins complete ground so there must be a voltage back feed somewhere.
    Trouble shooting this is a real pain ,as I had to trace the fused wire to see where it was going,which had me removing a lot at the dash.First disconnecting the alarm to make sure that was not it.
    Next pull the rocker covers & pins an see what I can find.
     
  2. fred heath

    fred heath Veteran

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    Check your wiring harness between the door and cab. These can get pinched and cause a short. You may have to open the wire loom and check each wire carefully. Go for the color of alarm wire first.
     
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  3. TRUCK ACTION

    TRUCK ACTION Grand Toyotaholic

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    Thanks, but there are no alarm wires running into the doors themselves , the door pin wires are under the rocker covers .
    What wires do run into the doors are all good as the power widows & safety latches work fine alone with the door poppers
     
  4. Erwin Merida

    Erwin Merida Member

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    Literally, the worst kind of problem IMHO. I rather rebuild a motor then chase an open circuit. Lol. Rectifying diodes can help you stop blowing fuses but won't solve your problem.
     
  5. TRUCK ACTION

    TRUCK ACTION Grand Toyotaholic

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  6. Justin Danger

    Justin Danger Addict

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    How deep did you have to go? What was the culprit?
     
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  7. Erwin Merida

    Erwin Merida Member

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  8. TRUCK ACTION

    TRUCK ACTION Grand Toyotaholic

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    It turned out that a consent hot was happening at the door pins from a miss installed wire.
    Why ,how & when this happened is a mystery, has the alarm is in use when never at out of town or state shows!
     
  9. Erwin Merida

    Erwin Merida Member

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    Almost on the money! Haha
     

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