No brake lights when headlights on! - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

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post #1 of 5 (permalink) Old Feb 27th, 05, 03:20 PM Thread Starter
Join Date: Sep 2000
Posts: 53

I almost hate to post another brake light problem after seeing all the others on the tech line already - but I didn't see an answer to this one. The brake lights on my 68 Camaro work fine in the day, but when the headlights are on, they don't work. Any ideas? Thanks!
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post #2 of 5 (permalink) Old Feb 27th, 05, 03:26 PM
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Location: Livermore, CA USA
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Did you double check your grounds? Also look at the sockets that the bulbs go into.


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post #3 of 5 (permalink) Old Feb 28th, 05, 03:34 PM
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I would agree with a bad ground. The tailight bulbs have two filaments. With a bad ground and the parking lights off the positive feed from the brake light switch will use the other lights in the system as a ground and light up the parking light filaments in the tail lights. When you turn the parking lights on it back feeds through the larger filaments to ground. Step on the brake and both sides become positive and out go the lights.

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post #4 of 5 (permalink) Old Mar 1st, 05, 04:03 PM Thread Starter
Join Date: Sep 2000
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Thanks for the help - it sounds logical. I'll check it out and let you know how it goes. Thanks!
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post #5 of 5 (permalink) Old Mar 5th, 05, 12:45 PM Thread Starter
Join Date: Sep 2000
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Well, I figured it out and now feel kind of stupid. When I redid the wiring, the wires going into the taillight sockets were corroded, so I took the contacts out of the plastic socket and resoldered them. I must have reversed them when I put them back in. I actually had brake lights when the lights were on (but no taillight) When I applied the brake, it was lighting the taillight filament. Because the brighter brake filament was already on, there was no difference. Oh well, live and learn. Thanks to those that tried to help me!
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