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bubba 2/10/2013
2000 GMC Sierra 1500 SL 8 Cyl 5.3L - Body & Interior
Courtesy lamps dome lights etc.... Won't turn off
I've pretty much figured that it has to be a door jamb sensor which on this of truck it is included in the door lock and handle assembly. Turns out these jewels run over 200$. Any ideas on how to figure out which one is triggering the problem and how to bypass. I've had these fuse pulled for the time being
2 Answers
  • HouseCallAuto
    HouseCallAuto 2/10/2013
    Probably the driver side but to be sure you have to hook up a shop grade scan tool that can read the door inputs and determine which door is actually closed and which one is reading open.
  • felplay auto repair.

    The body control module (BCM) control base on inputs from door jamb switch, dome lamp switch or door handle switch. The BCM will supply a ground to the courtesy lamp relay when closing any one of the above switches to ground. the only way to find out is with a voltmeter and wires diagram checking all the input wires from the switches above, if you find a ground in one of this input that's the culprit,, other way you can unplug all the switches but that's waste too much time to find out you have a bad BCM..

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