12-08-2018, 01:44 PM | #1 |
Registered User
Join Date: Mar 2015
Location: Millville, New Jersey
Posts: 26
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Wiring Problem?
I`m having an issue with losing my left side brake light when lights are turned on. I have brake lights without lights on but as soon as I turn on running lights and step on brake the running light goes out and no brake light either.
Any ideas? This is a new rear light harness from Lmc truck Bill |
12-09-2018, 04:22 PM | #2 |
Msgt USAF Ret
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,703
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Re: Wiring Problem?
What does the right side do? If it works ok then I would check the grounding on the left side socket to bed mount .
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VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
12-09-2018, 10:09 PM | #3 |
Senior Member
Join Date: Sep 2002
Location: Alamogordo, NM
Posts: 677
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Re: Wiring Problem?
Agree. Symptoms like these are typical indicators of ground issues, usually at the tail light housings as VetteVet said.
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12-10-2018, 10:19 AM | #4 |
Registered User
Join Date: Mar 2015
Location: Millville, New Jersey
Posts: 26
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Re: Wiring Problem?
I think I found it. It`s in the molded plug that connects everything to the
feed from front of cab on the NEW LMC taillight harness. I pulled light socket from left side, left it hanging, went turned on running lights and I held bulb to socket and it lit up? Not supposed to do that! So I went and got the old junk harness, plug that in to taillamp housing laying on floor, ran a ground wire to ground housing, turn lights on and I had brake and taillight. Started to check new plug wires and found I had continuity between brown light wire and green reverse wire in brown wire plug slot. Don`t have it with factory plug so I`m going to cut off the old NOS plug and connect to my new Taiwanese harness. I lost a lot of hair scratching my head on this one. Another reason to use the old stuff or NOS. Aftermarket crap! Bill |
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