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2001 Silverado Z-71 Multi Function Switch

Discussion in 'General Chevy & GM Tech Questions' started by egt1, Oct 15, 2009.

  1. egt1

    egt1 New Member

    HELP! :sign0144:

    I have a 2001 Silverado Z-71. Several years ago my headlights started flickering and I found the trouble in a broken wire on the Multi Function Switch wiring harness where it plugs to the MFS. I repaired the broken wire and it's worked great until last week. The headlights went out again so again I looked at the MFS and found that the wire I repaired plus one more next to it were burned, slightly melting the wiring harness connector. Splicing new wires didn't work so I bought and installed a new MFS which came with a new wiring harness. Still no headlights and now I have no interior lights, no under hood light, no cargo light, the key remote wont work the door locks AND the truck wont start!:grrrrrr:

    I have an MT2500 scan tool (Snapon brand) that will communicate with all vehicle functions except the Body Control Module. I think that I may need to reprogram the BCM or buy a new one. I retreived one DTS code, P1626 Vehicle Theft Deterent, so the truck is in lock down (turning off the injectors).:gasp:

    Has anyone had this problem? My Chevy dealer is stumped (which is usual for them) and I don't want to tow my truck to them so they can keep it for a month a charge me $2000.:fighting0019:
    Last edited: Oct 15, 2009

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