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#1 |
Registered User
Join Date: Dec 2007
Location: West Fargo, ND
Posts: 31
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no brake lights
My lights tail lights are acting really weird. I have no running lights and the only way the running lights are on is when I turn the blinker on with the vehicle off. When the vehicle is running I turn the blinkers on and the L and R blinkers flash at the same time. Anyone got any idea what's going on?
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#2 |
Senior Member
![]() Join Date: Dec 2013
Location: Gods country East,Tn
Posts: 8,545
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Re: no brake lights
check all your ground wires ,there are numerous threads on problematic lights and your grounds are where you start .
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#3 |
Senior Member
![]() Join Date: Oct 2010
Location: Cadiz, Ky
Posts: 512
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Re: no brake lights
Unplug the rear harness on the firewall and check each wire with a test lite. Then you know where to start. If everything checks out there look at the rear harness. I had one that got on the exhaust and melted. Caused all kinds of strange lights.
__________________
1972 Chevy LWB Roadster 1999 Chevy Silverado 2wd 2015 Chevy High Country 4x4 Crew Cab |
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#4 |
Registered User
Join Date: Dec 2007
Location: West Fargo, ND
Posts: 31
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Re: no brake lights
it looks like there is a brown wire and 3 green ones? I know the Brown is the power supply. What are the others?
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#5 | |
Msgt USAF Ret
![]() ![]() Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,714
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Re: no brake lights
Quote:
There should be a mid frame connector which has two browns and two light green for the two tail lights and the two back-up lights and the brown wires will also go to the license plate light. I have a 67 c 10 so I will double check mine and if it is different than that I will post back. VV
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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. |
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#6 |
Registered User
![]() Join Date: Apr 2007
Location: Foster Rhode Island
Posts: 1,176
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Re: no brake lights
Sounds like ground issues to me also
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#7 |
Registered User
Join Date: Dec 2007
Location: West Fargo, ND
Posts: 31
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Re: no brake lights
I checked voltage at rear connector in frame. The wire coming from the firewall to this connector are working fine. What could be wrong with the wires from this connector to the taillights? We're are the taillights grounded?
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