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Old 08-10-2017, 04:04 PM   #1
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Join Date: Jan 2013
Location: Fairview Heights, IL
Posts: 45
Taillight wiring ** HELP***

Recently had some lighting issues and upon investigation the wires from tail light housings to the rear plug were hacked and in a lot of areas uncoated wire. To fix this asap so I can drive it I cut out the hack job and stripped wires. Passenger works perfect. Drivers side is the issue, Running lights work but when brakes applied light goes out (drivers only), also turn signal doesn't work and when passengers signal turned on drivers bulb goes out.... Has to be something stupid but I'm stumped right now.

I looked up wiring diagram, Yellow to Yellow and Brown to Brown connected, There was also a brown wire with yellow line i connected that to brown swell

Any help is greatly appreciated
64 Chevy C-10
2004 VW Jetta GLI VR6
2006 Suzuki GSXR 600
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Old 08-10-2017, 06:22 PM   #2
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Join Date: May 2012
Location: Iron Ridge, WI
Posts: 1,013
Re: Taillight wiring ** HELP***

You need a good ground from the light housing to the frame of the truck. Both sides
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Old 08-11-2017, 10:40 AM   #3
Robert Haas
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Join Date: Mar 2014
Location: Salinas Ca.
Posts: 375
Re: Taillight wiring ** HELP***

Yep your grounds are very important.
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Old 08-11-2017, 11:05 AM   #4
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Join Date: Sep 2006
Location: Hollister, Ca.
Posts: 6,120
Re: Taillight wiring ** HELP***

Sounds like you are having a ground issue with that housing. Ground to the bed is fine, as the cab and bed are ground via the frame (assuming that is ok)

Shinny metal is required to promote a good ground.

I am a big fan of 'star' washers and dielectric grease ...

What the Heck is that ??
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