1987-1989 Ford F-Series/Bronco Wiring Diagram 5 of 7 - RABS, 4x4 Shift, Cruise

This is page 5 of 7 of a Mitchell International (copyright 1994) wiring diagram set covering 1987 through 1989 Ford F-Series trucks and Broncos. The page presents several vehicle electrical systems in schematic form with full wire color codes and connector pinouts. Systems shown include: the Anti-Lock Brake Module (RABS) with its 14-pin connector, dual brake warning sensor, proportioning valve (ISO/DUMP solenoids, reset), electric brake test connector, and rear axle anti-lock sensor; the Electronic Shift Control Module (4X4) with shift control switch, transfer case motor, transfer case clutch, transfer case speed sensor, gear select switch, and shift position sensors (shift motor assembly); the cruise control system, including the cruise control amplifier, servo (VAC/VENT), speed sensor, clutch switch, slip rings, and cruise control switch with 2200/120/680-ohm resistor values; the A/C and heater blower circuits, with A/C switch, clutch cycling pressure switches (gas, diesel, 4.9L variants), A/C compressor clutch diodes, blower motors, blower switches, and blower resistors with thermal limiter; and the windshield wiper/washer system with interval governor, wiper switch, wiper motor, and washer motor. Fuse references include Fuse #6, #9, #10 and circuit breaker #12. A reader can trace wire colors, pin numbers, and circuit paths for diagnosing these systems.