Tests AA

PINPOINT TEST AA: THE TRAILER LAMPS ARE INOPERATIVE - LH TRAILER TURN SIGNAL/STOPLAMP/HAZARD LAMPS

Test AA1-AA3:

Test AA4-AA5:

Normal Operation
When the LH trailer tow turn relay is energized, power is routed from circuit 175 (BK/YE) to the trailer tow connector through circuit 52 (YE). When circuit 374 (DB/WH) is supplied power from the multifunction switch (such as when the brakes are applied or the LH turn signal is engaged), the LR turn relay is energized.

Possible Causes
- circuit 52 (YE) open
- circuit 175 (BK/YE) open
- circuit 374 (DB/WH) open
- circuit 1205 (BK) open
- trailer tow turn lamp relay
- trailer