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Posted
I need help, can anyone point me to some info about tail light wiring problems, thanx.

what year's your rx?

2003

My fuses are ok all side lights and plate light are working only tail lights are out. Light bolbs are ok too :) lol

Posted

How long have you had the truck?

Is it day or night

is the stalk in auto or full headlight mode.

do the brake lights or reverse or signals work?

what side lights?

try and add as much info when trying to resolve a problem

which fuses did you check

Posted

There is an ECU that monitors tail and stop light bulb filament condition. It does this using a small resister in series with the plus side of the 12 volt supply. If one of these sensing resisters should fail or maybe just an ECU connection, the bulbs cannot be illuminated.

  • 2 years later...
Posted
There is an ECU that monitors tail and stop light bulb filament condition. It does this using a small resister in series with the plus side of the 12 volt supply. If one of these sensing resisters should fail or maybe just an ECU connection, the bulbs cannot be illuminated.

I'm having the same problem with my 99 RX after a bad trailer connection blew the tail lights and replacing the bulbs and fuse didn't help. Where is the ECU control unit located, assuming that is what is blown?

Thanks,

Brian

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