Ford 5.8L Engine Controls Wiring Diagram 25-5 - MIL, CPP Switch, PCM Circuits

This is page 25-5 of a Ford wiring diagram set covering Engine Controls for the 5.8L engine. It shows the circuit from the fuse panel (fuse 17, 10A, hot in start or run) through circuit 640 R/Y and splice S215 to the Malfunction Indicator Lamp (MIL) in the instrument cluster, then via circuit 658 PK/LG through connectors C251, C202, and C198 (VIP Data Link Connector) to pin 17 of the Powertrain Control Module (PCM). A note explains the MIL lights with the ignition in ON prior to cranking and stays on if the PCM detects a fault. The right side shows the ignition switch (hot at all times) feeding circuit 32 R/LB toward the starting system, with a 5.8L Lightning-only branch, and circuit 480 P/Y through splice S224 to the Clutch Pedal Position (CPP) circuit. Three variants are shown: E4OD transmission and C6 transmission use a CPP switch jumper, while manual transmissions use an actual CPP switch that prevents engine startup with the clutch pedal released. Circuit 481 GY/Y returns to PCM pin 30 (without E4OD) via connectors C202 and C185. Air conditioner/heater circuits 883 PK/LB and 348 P connect to PCM pins 10 and 43. Cross-references cite pages 13-3, 13-9, 13-16, 20-1, 54-2, 60-3, and 149-2.