F 350 2WD Super Duty V8-5.4L VIN 5 (2006)
Z2 Continued
Normal Operation
The trailer tow parking lamp relay is integral to the central junction box (CJB). The trailer tow parking lamp relay coil receives voltage through circuit
14 (BN) when the vehicle parking lamps are illuminated. The trailer tow parking lamp relay coil is grounded through circuit 570 (BK/WH). The CJB
fuse 38 (20A) supplies voltage to the trailer tow parking lamp relay. When the trailer tow parking lamp relay is energized, the voltage is routed to the
trailer tow connector through circuit 962 (BN/WH).
Possible Causes
-
Fuse
-
Circuit 570 (BK/WH) open
-
Circuit 962 (BN/WH) open
-
Trailer
-
CJB
Tests AA: The Trailer Lamps Are Inoperative - Trailer Reversing Lamps
PINPOINT TEST AA: THE TRAILER LAMPS ARE INOPERATIVE - TRAILER REVERSING LAMPS
AA1