Ford Bronco/F-150 Power Distribution Wiring Diagram - PCM Relay, ICM, Fog Lamps

This scan is page 94 of a Ford wiring manual, section 13-5 'Power Distribution, Gasoline', showing power distribution for gasoline engines. It traces circuit 16 (R/LG) from splice S206 (page 13-3) through the engine compartment fuse box, a 20A fuse, connector C202, and splices S148 and S199 to the Ignition Control Module (ICM, connector C1021), Radio Capacitor (C1017), Ignition Coil (C1008), and Distributor (C178), all referenced to page 21-1. It also shows the engine compartment fuse box feeding the PCM Power Relay via a 20A fuse (circuit 37 Y) and the PCM Power Diode (circuit 175 BK/Y), with relay output circuit 361 R, and connector C185 to the Powertrain Control Module (PCM, pages 23-1, 24-1, 25-1, 26-1). A 15A fuse feeds circuit 477 LB/BK to the Fog Lamp Relay (Lightning only), which outputs circuit 478 T/O through splice S140 to the left fog lamp (C113) and right fog lamp (C114), page 86-1. Grounds run on circuit 57 BK through splice S102 to ground G100 (see grounds, page 10-1). Readers can identify wire circuit numbers, colors, fuse amperages, connector IDs, and cross-referenced manual pages.