E 350 V10-6.8L (2007)
O2 Continued
Normal Operation - Trailer Tow Turn/Stoplamps
When the trailer tow turn lamp relay is energized, voltage is routed to the trailer tow connector through circuit 52 (YE) (LH stop/turn lamp) and/or 64
(DG) (RH stop/turn lamp).
Normal Operation - Trailer Tow Parking Lamps
When the trailer tow parking lamp relay is energized, voltage is routed to the trailer tow connector through circuit 962 (BN/WH).
Normal Operation - Trailer Tow Reversing Lamps
When the trailer tow reversing lamp relay is energized, voltage is routed to the trailer tow connector through circuit 963 (BK/LG).
Possible Causes
-
Circuit 52 (YE) short to voltage
-
Circuit 64 (DG) short to voltage
-
Circuit 962 (BN/WH) short to voltage
-
Circuit 963 (BK/LG) short to voltage
-
Trailer tow relay
-
Trailer
Test P: The Trailer Battery Charging Is Inoperative/Does Not Operate Correctly
PINPOINT TEST P: THE TRAILER BATTERY CHARGING IS INOPERATIVE/DOES NOT OPERATE CORRECTLY