Test L: The Reversing Lamps Are Inoperative
PINPOINT TEST L: THE REVERSING LAMPS ARE INOPERATIVEL1-L4:
L4-L8:
L8-L10:
L10-L11:
Normal Operation - Vehicles Not Equipped With TorqShift
The digital transmission range (TR) sensor receives voltage from the central junction box (CJB) fuse 12 (15A) through circuit 296 (WH/VT). When the transmission is placed in REVERSE (R), the digital TR sensor routes voltage to the reversing lamps through circuit 140 (BK/PK). The reversing lamps share a common ground through circuit 57 (BK).
Normal Operation - Vehicles Equipped With TorqShift
The reversing lamp relay coil receives voltage from the powertrain control module (PCM) power relay through circuit 361 (RD). The reversing lamp relay coil ground is supplied and controlled by the PCM through circuit 1362 (DG/OG). Voltage is supplied to the reversing lamp relay switch side from the CJB fuse 12 (15A) through circuit 296 (WH/VT). When the transmission is placed in REVERSE (R), the PCM provides a ground for the reversing lamp relay coil, energizing the relay. When the reversing lamp relay is energized, the reversing lamp relay routes voltage to the reversing lamps through circuit 140 (BK/PK). The reversing lamps share a common ground through circuit 57 (BK).
Possible Causes
- Fuse
- Circuit 140 (BK/PK) open
- Circuit 296 (WH/VT) open
- Circuit 361 (RD) open
- Circuit 1362 (DG/OG) open
- Digital TR sensor
- Reversing lamp relay
- PCM