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2006 Toyota Highlander Brake Light Bulb Troubleshooting (check in this order):

· Check Fuse(s)

· Check Brake Bulbs - Including bad bulbs, loose connected or incorrectly installed bulbs, left, right and center high mount - 1 bad bulb or connection in the circuit can cause the entire circuit to malfunction.

· Check Turn Signal Bulbs

· Check switch on brake pedal

· Check license plate light bulb and wiring (sometimes on same circuit)

· Check trailer hitch wiring harness (sometimes on same circuit)

· Check all wiring harnesses and wiring for shorts

Most likely it's the fuse or a burnt bulb breaking the circuit. Sometimes the license plate and/or the trailer hitch is wired into other circuits and can cause issues in other areas. Sometimes its wires grounding out somewhere on the vehicle. See sources and related links below for bulb information. See owner's manual for location and identification of fuses.

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14y ago

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