1987-1989 Ford F-Series/Bronco Wiring Diagram (4 of 7) - Ignition, Fuse Block

This is page 12 of a Mitchell International wiring diagram set, labeled '1987 through 1989 F-Series/Bronco wiring diagram (4 of 7)' (copyright 1994). It covers the ignition switch circuit (LOCK/OFF/RUN/ACCY/START positions), starter relay, distributor, clutch interlock switch, gear selector switch, and electronic control assembly wiring. The central feature is the fuse block, showing numbered fuse positions with amperage ratings: #1 15A (gas), #4 15A, #5 15A, #6 15A, #8 15A, #9 30A, #10 5A, #11 15A, #12 30A (circuit breaker), #14 30A (circuit breaker; 25A fuse with tailgate power window), #15 10A, #16 30A, #17 20A (diesel), #18 15A. Circuits shown include cruise control amp and switch, horn relay and horns, injector blower relay (diesel notes throughout), rear defog, anti-lock brake module, electric shift control module (4WD), tailgate window switch, main light switch with dimmer and dome positions, warning buzzer, interior lights, windshield wiper/washer switches (standard and intermittent), cab marker lights, beam select switch, headlights, and marker/taillight circuits. Extensive wire color codes are given (e.g., RED-LT BLU, GRY-YEL, BLK-PNK, LT BLU-RED, YEL-LT BLU), making this useful for tracing ignition, lighting, and wiper circuits on 1987-1989 Ford trucks and Broncos.