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Old 02-16-2024, 06:18 PM   #21
RustyPile
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Join Date: Dec 2017
Location: Elkhart, Texas
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Re: Getting brake lights to work

Quote:
Originally Posted by waters5 View Post
I disconnect the harness from the steering column and tested the wires with a tester. I believe I isolated the problem to the turn signal switch or the headlight switch. On the brake switch connector unplugged from the brake switch I have 12V on the orange wire, the white wire has a dim light indicating a bad ground will need dig deeper this weekend.



Headlights off: all turn signals and brake lights work

Headlights on with ign off: all turn signals and brake lights work, taillights go from low light to bright red when brakes are appliignited

Headlights on with ignition on: all turn signal work, brake light dont change brightness. They stay super bright like the brake is applied.
Turn signals only work when ignition switch is ON. Brake lights will work with ign switch either ON or OFF. You have something wired wrong in that harness...
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