1965 Brake Lights Problem
Team Owner
Joined: Feb 2003
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From: Sitting in his Nowhere land Hanover Pa
2024 C2 of the Year Finalist - Unmodified
2015 C2 of Year Finalist
Check the plug from the rear body harnes that plugs into the dash harnes. Make sure you got continuity between the two plugs on all wires. If that's good you might have bad bulbs
Team Owner
Joined: Jul 2006
Posts: 22,181
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From: Kannapolis NC
The only electrical difference in the turn signal and the brake light on one side is the contact in the turn signal switch. When you turn on the turn signal to one side, it interrupts the brake light voltage and inserts the flasher voltage. It uses the same wire, same bulb, same filament, same ground for both the brake and the turn signal. So, the contact inside your turn signal is loose or corroded that goes to that side. Try holding the brake and wiggling the turn signal switch with the KEY OFF. If that brake light flashes or comes on while you're wiggling, you'll know for sure, but it could still be bad and not do that. Here's a picture of what those contacts look like. The cam from the signal switch stalk goes between the two curved prongs shown in the center. That's where your contact will be not making.
Thread Starter
7th Gear
Joined: Sep 2014
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Melting Slicks
Joined: Sep 2001
Posts: 3,021
Likes: 1,098
From: Aggieland TX
The only electrical difference in the turn signal and the brake light on one side is the contact in the turn signal switch. When you turn on the turn signal to one side, it interrupts the brake light voltage and inserts the flasher voltage. It uses the same wire, same bulb, same filament, same ground for both the brake and the turn signal. So, the contact inside your turn signal is loose or corroded that goes to that side. Try holding the brake and wiggling the turn signal switch with the KEY OFF. If that brake light flashes or comes on while you're wiggling, you'll know for sure, but it could still be bad and not do that. Here's a picture of what those contacts look like. The cam from the signal switch stalk goes between the two curved prongs shown in the center. That's where your contact will be not making.
Attachment 47877562
Attachment 47877562
I have combined your info with some from an earlier thread in which "buns" (Tim Welsh) posted a photo of a faulty repro switch with internal contact issues. A PDF file is attached for those who might want to add it to their reference files.
So far (12+ years), I've been lucky with the repro switch I put in.
Dave Z
Thread Starter
7th Gear
Joined: Sep 2014
Posts: 7
Likes: 0
The only electrical difference in the turn signal and the brake light on one side is the contact in the turn signal switch. When you turn on the turn signal to one side, it interrupts the brake light voltage and inserts the flasher voltage. It uses the same wire, same bulb, same filament, same ground for both the brake and the turn signal. So, the contact inside your turn signal is loose or corroded that goes to that side. Try holding the brake and wiggling the turn signal switch with the KEY OFF. If that brake light flashes or comes on while you're wiggling, you'll know for sure, but it could still be bad and not do that. Here's a picture of what those contacts look like. The cam from the signal switch stalk goes between the two curved prongs shown in the center. That's where your contact will be not making.
Attachment 47877562
Attachment 47877562
Burning Brakes
Joined: Jul 2007
Posts: 1,090
Likes: 26
From: Gasburg Virginia
Turn switch
[Q[B][/B]UOTE=Csbsteveb;1589404074]Ordering the parts today. You are correct....the bulbs are fine. Hop e to fix it this week. Thanks for your help![/QUOTE]
Who sells a good or the best switch??? Dave 65 Coupe
Who sells a good or the best switch??? Dave 65 Coupe
Thread Starter
7th Gear
Joined: Sep 2014
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