Tests AA

PINPOINT TEST AA: THE REVERSING LAMP ARE ON CONTINUOUSLY

Test AA1:

Test AA2-AA5:

Normal Operation
The powertrain control module (PCM) monitors the digital transmission range (TR) sensor. When the PCM detects the transmission in REVERSE, a signal is sent to the rear electronic module (REM) to illuminate the reversing lamps. Ground for the LH reversing lamp is sent through circuit 31S-LG9 (BK/GN) to the REM. Ground for the RH reversing lamp is sent through circuit 31S-LG16 (BK/RD) to the REM. The REM individually controls the ground circuits for the reversing lamps.

Possible Causes
- circuit 31S-LG9 (BK/GN) short to ground
- circuit 31S-LG16 (BK/RD) short to ground
- REM
- PCM