Toyota Repair Problems? Ask a Mechanic for Answers ASAP
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So does the light stay on with the key in ignition and lights off, or does it also stay on with key out of ignition?
Also, I need to know whether it has aftermarket trailer wiring harness connected in case this is an issue, and I need the 17 digit vin number
Ok, in the junction block under driver side of the dash is the taillamp relay. Near it is the horn relay. Swap them out and see if the light goes out. If it does, replace the relay. See attached for location.
If no difference, then this is likely a faulty body ecu but will need it verified with a scan tool
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