Thread: No backup lights

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  1. #21 Re: No backup lights 
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    The license plate bulbs do work fine.

    -Scotty, I think the 04+ might have a different routing. I do not see what you are talking about on my car. I traced the wiring until the rear speaker deck. I need to remove the seat to get to the rest of the harness. I know it runs under the side moldings. Its been too cold and snowy to have the car torn apart. It is supposed to be a bit warmer this weekend.

    Is there a switch at the gear selector that triggers the backup lamps? I may remove the center console to check if something there is all gunked up.
    2017 Buick Regal 2.0 Turbo (SOLD 2007 Grand Prix GT. Front and rear PLOGs, 1.8 roller rockers, CAI, HPTuned, 3.4 pulley, TEP transmission, 90# springs, rollmaster single chain, Impala front brakes d/s rotors.) Past (Pontiacs) Grand Prix- 97 GT, 03 GT, 04 GT, 04 Comp G, 78 Trans am, 92 Trans Am.
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  2. #22 Re: No backup lights 
    Killa Bee Scottydoggs's Avatar
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    theres got to be a plug you you cant take the trunk lid off with out cutting the wires. it could be wrapped in black tape.

    if your not seeing the plug, just open the loom up and look for a damaged wire. the damage is where the hinge likely touches the wire loom.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  3. #23 Re: No backup lights 
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    I have an update on this issue. long story short is the led bulbs were in the wrong way. :/ lol. Thanks again for all the the help guys!
    2017 Buick Regal 2.0 Turbo (SOLD 2007 Grand Prix GT. Front and rear PLOGs, 1.8 roller rockers, CAI, HPTuned, 3.4 pulley, TEP transmission, 90# springs, rollmaster single chain, Impala front brakes d/s rotors.) Past (Pontiacs) Grand Prix- 97 GT, 03 GT, 04 GT, 04 Comp G, 78 Trans am, 92 Trans Am.
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  4. #24 Re: No backup lights 
    GTX Level Member wstefan20's Avatar
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    Yup. Would've mentioned to try that if I knew you were using leds and that it started when you swapped bulbs. Leds are light emitting Diodes. Diodes allow electricity to go one way. Therefore, they only work in one direction. Glad you got it working though
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  6. #25 Re: No backup lights 
    GrandPrix Junkie spazzz's Avatar
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    How many GPers does it take to change a light bulb.

    Too funny man.
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  8. #26 Re: No backup lights 
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    I needed this diagram earlier, but where is the back up lamp relay located at?
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  9. #27 Re: No backup lights 
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    It is a fuse in the engine compartment fuse box. It is labeled auxiliary
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