Quote:
Originally Posted by alabamatx
I can't quite figure out how the brake lights are activated. There must be a switch or sensor somewhere. Does the multifunction switch control the brake light? Do the three brake lights get power from a common source? Since two work and the other one doesn't, could it be a bad harness connector to that light?
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It might help to reference wiring diagrams like out of the factory service manual. The regular brake lamp circuits pass through the multifunction switch via the hazard switch portion. The third brake light does not.