F 150 4WD Pickup V8-5.4L VIN V Flex Fuel (2006)
X5 Continued
Normal Operation
The trailer battery charging is accomplished through the use of the trailer tow battery charge relay. The trailer tow battery charge relay is supplied
voltage and ground through the central junction box (CJB). When energized, the trailer tow battery charge relay routes voltage from the CJB to the
trailer tow connector through circuit 49 (OG).
Possible Causes
-
Fuse
-
Circuit 49 (OG) open
-
Trailer tow battery charge relay
-
CJB
-
Trailer
Test Y: The Trailer Electric Brakes Are Inoperative/Do Not Operate Correctly
PINPOINT TEST Y: THE TRAILER ELECTRIC BRAKES ARE INOPERATIVE/DO NOT OPERATE CORRECTLY
