Thread: Brake and back up lights dim on drivers saide

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  1. #1 Brake and back up lights dim on drivers saide 
    GTP Level Member Burbman's Avatar
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    Hi guys, 2001 GT. Thought my drivers side brake light was out so stopped at Advance for a bulb. Bulb lights but only half as bright as passenger side. Same thing with back up bulb, comes on in reverse but only half as bright as right side. I'm thinking bad ground, anybody know where it is offhand before I start digging in?
    Last edited by Burbman; 08-21-2013 at 06:28 AM.
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  2. #2 Re: Brake and back up lights dim on drivers saide 
    GTP Level Member LeadfootCJ7's Avatar
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    I would start with checking grounds and connectors.
    2007 Grand Prix GXP;2002 Camaro Z28 - tune, CAI, and exhaust
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  3. #3 Re: Brake and back up lights dim on drivers saide 
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    Probe it with volt meter. Could be dirty socket, bad ground connection, or partially broken wiring.
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  4. #4 Re: Brake and back up lights dim on drivers saide 
    GrandPrix Junkie
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    Do you have condensation inside that taillight? If so I'd bet the bulb sockets are all corroded. Happened on my 00GT. Replaced the taillight assembly with a good one and clean up the bulb sockets and all is well. They were not only wet, but very green with corrosion.
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  5. #5 Re: Brake and back up lights dim on drivers saide 
    I live here. stealthee's Avatar
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    Dim bulbs definitely sounds like a poor ground situation. I have had the issue myself on other cars in the past.


    2011 Mitsubishi Lancer GTS - DD mode
    1991 Mitsubishi 3000GT - Many mods to come
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  6. #6 Re: Brake and back up lights dim on drivers saide 
    GTP Level Member Burbman's Avatar
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    Anybody know offhand where that harness grounds at? The wire loom heads across to the right side running behind the bumper cover....
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