Trailer Light Module Troubleshooting. Trailer light rigs are usually of one of three varieties. Oftentimes, these lights prove problematic in the warmer months when the trailer is used at a high frequency.
That said, the TSP is not available in earlier models so The light module stopped controlling the right turn signal/brake unit on my trailer. While these may be perfectly functional when the trailer is new, over time the seals around the removable lens covers fail, allowing water into the light cases. Video tutorial on how to wire trailer lights.
For more advanced issues that you can't fix on your own. have Subaru factory trailer lighting kit.
Oftentimes, these lights prove problematic in the warmer months when the trailer is used at a high frequency.
Rewiring a trailer involves removing the old wiring and trailer lights, routing the new wiring harness through the trailer frame, installing new trailer lights Test the brake lights, running lights, right turn signal and left turn signal. While these may be perfectly functional when the trailer is new, over time the seals around the removable lens covers fail, allowing water into the light cases. Lights Trailer Module consists of an auxiliary ECU which controls the trailer attached to the automobile.
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