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Scotty Kilmer
Scotty Kilmer


P0504 LEXUS Possible Causes What does this mean? Faulty stop lamp switch Blown stop lamp bulb Brake switch harness open or shorted Brake switch circuit poor electrical connection How do I fix code P0504 LEXUS Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

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