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smlranger's avatar
smlranger
Explorer
Jun 10, 2013

Brake light issue, stumped.

My LED high mount brake light quit working. The regular brake bulbs work fine in the tail light assemblies. Removed LED light, tested it on a known 12v source and it works fine. Found nothing obvious with the wiring on the coach going to the LED light...verified good ground. However, no 12v signal on the + lead going to the LED.

Fuse that powers the 'Brake Light Signal' solenoid is good and solenoid works when brakes applied. Cannot find a separate fuse or separate circuit for the LED high mount light.

What am I missing? Anyone with a CC of similar vintage know if the high mount light is on a separate circuit?
Class A

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  • donn0128's avatar
    donn0128
    Explorer II
    Jun 10, 2013
    Trace the wire back to where it is connected to the main brake lights. You should find your problem pretty fast. I suspect itis where it is spliced into the main brake light circuit.
  • The_Texan's avatar
    The_Texan
    Explorer
    Jun 10, 2013
    Don't know about motorhomes, but in a standard vehicle, the Cyclops must be wired on a separate source, so if your regular brake lights fail the 3rd will still work. That is where I would start my problem solving, looking for a wire from the brake switch that does not activate the regular brake lights.

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