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  1. #1

    Default 2003 Silverado 2500 Electrical problem

    I just purchased this truck and nothing on the passenger door works, i.e., mirror, electric window and door lock. They don't work from the controls on the driver door or on the passenger door. Is there a fuse or relay that controls that door? Seems weird that nothing works, so probably not a broken wire? Any ideas anyone?

  2. #2
    Sr. Engineer
    Join Date
    May 2009
    Manitowoc, WI


    I'd pull the inner door panel off and look at the back side of the power window controls. All the door wiring is plugged in there, if nothing works it might just be as simple as an unplugged harness.

  3. #3


    Was there any body work ever done to that side of the cab? Any minor differences in color, rough edges on the doors, tool marks on hinge bolts/obvious signs of rewelding the hinges?

    I know it's a shot in the dark, but if that door was taken off for a body repair, the harness had to be unplugged. Its uncommon, and poor worksmanship, but mistakes happen. They might have put the harness back in the door, and forgot to hook up the components. They might have forgot to put the harness in the door period. Heck, I have even seen hack shops cut the wiring instead of unplugging the harness and snaking it out. They could have cut the harness in the door and never re attached it. There are too many things that could be going on there. I *think* most circuits on that truck are tied together.. ie. all door locks on a fuse, all windows on a fuse, all mirrors on a fuse etc. not just right side/left side. I would test the fuses real quick, but I would really be prepared to just take the door panel off and take a good peek around inside. Make sure everythings hooked up.
    2010 Bowtie Silverado 1500 ECSB LT 5.3L AFM w/ flex fuel
    4x4 - NON Z71 - 3.08 final rear - 6spd auto - Towing pckg with tranny cooler, G80 etc
    96 Camaro RS-94 camaro t top-91 Firebird Formula-98 camaro z28-93 S10 Blazer 4.3HO 2wd-2000 Grand Prix GT-2003 Silverado 2500HD 6.0L CC LB 4x4 LT
    And some POS non GMs..

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