5 Repairing Back-Up Lamp Problems

Part 1 Of 3:

Part 2 Of 3:

Part 3 Of 3:

THEORY OF OPERATION:
The back-up lamps are activated directly by the Transmission Range Sensor (TRS). When the gearshift selector is in the reverse position, the back-up lamps are energized through the TRS.

LIMP-IN:
N/A

WHEN MONITORED/SET CONDITIONS:
No Diagnostic Trouble Codes are set for this problem.

TRANSMISSION EFFECTS:
Normal operation continues when this problem occurs.

POSSIBLE CAUSES:
- Short or open in the back-up lamp circuit
- Defective back-up lamp bulb(s)
- Gearshift linkage out of adjustment
- Blown back-up lamp circuit fuse