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Tests AA: The Trailer Lamps Are Inoperative - Trailer Reversing Lamps

PINPOINT TEST AA: THE TRAILER LAMPS ARE INOPERATIVE - TRAILER REVERSING LAMPS


AA1:






AA1-AA2:






Normal Operation
The battery junction box (BJB) fuse 63 (15A) receives voltage from circuit CLS10 (GY/BN) when the vehicle reversing lamps are illuminated. The voltage is then routed to the trailer tow connector through circuit CAT16 (GY/BN).

Possible Causes
- Fuse
- Circuit CAT16 (GY/BN) open
- Circuit CLS10 (GY/BN) open
- Trailer