Section 01-16: Wiper and Washer Systems
1996 F-150, F-250, F-350, F-Super Duty and Bronco Workshop Manual
DIAGNOSIS AND TESTING

Electrical Schematics

Refer to the following electrical schematics when performing diagnostic pinpoint tests.

Interval Wiper, Washer Circuit — Except F-53 Motorhome






Interval Wiper, Washer Circuit — F-53 Motorhome






Wiper Control Module Connector






Pin NumberCircuitCircuit Function
1589 (O)Multi-Function Switch Mode
265 (DG)Ignition Power (Hot in ACC or RUN)
357 (BK)Ground Circuit
4941 (BK/W)Windshield Washer Pump Motor Feed
557 (BK)Ground Circuit
6Not Used
7993 (BR/W)Multi-Function Switch (Common)
856 (DB/O)Wiper Motor LO Speed
9590 (DB/W)Multi-Function Switch (Internal Mode)
1061 (Y/R)Wiper Motor (Common)
1165 (DG)Ignition Power (Hot in ACC or RUN)
12Not Used
1328 (BK/PK)Wiper Motor Park Switch
1458 (W)Wiper Motor HI



Turn Signal and Windshield Wiper Switch Connector






Pin NumberCircuitCircuit Function
1589 (O)Multi-Function Switch Mode
215 (R/Y)Headlamp Dimmer Switch Feed
313 (R/BK)Headlamp Dimmer Switch to Low Beams
4993 (BR/W)Multi-Function Switch (Common)
512 (LG/BK)Headlamp Dimmer Switch to High Beams
6590 (DB/W)Multi-Function Switch (Internal Mode)
7196 (DB/O)Instrument Panel Lamps Feed



Wiper Motor Connector






Pin NumberCircuitCircuit Function
157 (BK)Ground Circuit
228 (BK/PK)Wiper Motor Park Switch
365 (DG)Wiper Motor Power (Park Feed)
461 (Y/R)Wiper Motor Common (Run)
556 (DB/O)Windshield Wiper Motor LO Speed
658 (W)Windshield Wiper Motor HI Speed