FC - Backup Lamp On Continuously

Pinpoint Test FC: Backup Lamps On Continuously

FC1 - Check TR Sensor Lamp Switch Operation

- Remove transmission range (TR) sensor.
- Disconnect switch. Turn ignition switch to the RUN poslition.
- Observe backup lamps.

Did backup lamps turn off?

YES REPLACE damaged transmission range (TR) sensor. RESTORE vehicle. RETEST system.
NO SERVICE circuit 140 (BK/PK) for short to B+. RESTORE vehicle. RETEST system.