Question about 2002 Buick Rendezvous

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The electrical systems have all gone crazy. Windows, engine lights, head lights, power locks won't function properly. I disconnected the battery and reconnected it to try and force a reset of the control system. Nothing is working.

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  • Anonymous Aug 22, 2008

    The dome lights stay on while driving even when the switch is set to off.

    All of the doors are shut.

    I unpluged the conection from the back of the lighting control unit, all of the lights turn off, except for the dome lights.

    They do turn off, while parked, after the 10 minute shut off cycle.

    There is a "Astro Start" installed on the car.

  • lemondriver Sep 03, 2008

    I have that sae problem. the car starts and runs fine, but the dash lights and gages and the radio, just go off and on repeadetly...

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I can also be your BCM (Body Control Module), I had mine go and my radio would go off, my windows would not work, ac would turn off, locks would go nuts etc...

Posted on Sep 23, 2008

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90% probability you gave a ground wire issue at your fuse/relay panel. Most of the relays work off the same ground wires and you have relays for a majority of those "gone crazy" items.

Posted on Aug 03, 2008

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REMOVAL AND INSTALLATION Multi-Function Switch
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