Section 18-01: Wiring and Circuit Protection
1996 F-150, F-250, F-350, F-Super Duty Chassis Cab, Motorhome Chassis, and Bronco Workshop Manual
DIAGNOSIS AND TESTING

Electrical Schematics, Trailer Towing Package Wiring



Trailer Tow






Multi-Function Switch






Trailer Adapter Connector






Pin NumberCircuitCircuit Function
1963 (BK/LB)Trailer Backup Lamps
249 (O)Trailer Battery Charge
364 (DG)Trailer RH Turn Signal
443 (DB)Trailer Brakes
5206 (W)Trailer Ground
652 (Y)Trailer LH Turn Signal
7962 (BR/W)Trailer Running Lamps



Relay Connectors






Pin NumberCircuitCircuit Function
86298 (P/O)Fuse to Relay Coil
8737 (Y)Fuse to Relay Switch
87aNot Used
3049 (O)Relay Switch to Trailer Battery Charge
8557 (BK)Ground



Pin NumberCircuitCircuit Function
86140 (BK/PK)Backup Lamps to Relay Coil
8737 (Y)Fuse to Relay Switch
87aNot Used
30963 (R/Y)Relay Switch to Trailer Backup Lamps
8557 (BK)Ground