ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 8731 > < Initial Inspection and Diagnostic Overview|Page 8729
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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 turn/stop) and/or 64 (DG)
(RH turn/stop).

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

Initial Inspection and Diagnostic Overview|Page 8731 > < Initial Inspection and Diagnostic Overview|Page 8729