2003 STS - No power on trunk lid harness

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Electrical Technical Information Discussion, 2003 STS - No power on trunk lid harness in Item Specific Cadillac Discussion; I have a 2003 Cadillac STS and all my brake lights on my trunk are out , and the power ...
  1. #1
    tonyc706 is offline Cadillac Owners Member
    Automobile(s): 2003 STS
    Join Date
    Jun 2014
    Sarasota FL

    2003 STS - No power on trunk lid harness

    I have a 2003 Cadillac STS and all my brake lights on my trunk are out , and the power Trunk hatch and everything having to do with the trunk lid is out.. Although the lights on either side of the trunk work.. What could be the problem.. I don't think it's a fuse issue because multiple fuses run the lights

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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, install big wheels !
    Automobile(s): 2002.5 F55 STS, 2014 Explorer XLT 4WD
    Join Date
    Feb 2006
    MD Eastern Shore

    Re: 2003 sts no power on trunk??

    Common problem. The trunk lid wiring harness runs inside the plastic cover for the left hinge/arm. Pull the cover and check for chafed/broken wiring at the hinge area. Also, check the multiple ground block at the left rear fenderwell body metal - under the molded carpet area.

    Wiring diagrams in a subscription to www.alldatadiy.com.

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