Ford 4R70W transmission controls wiring diagram with PCM power r…

Ford factory wiring schematic page headed "29-3 Transmission Controls (4R70W)," tracing power from the engine compartment fuse box through the PCM power relay to the 4R70W vehicle power feeds, plus the heated oxygen sensor and output shaft speed (OSS) sensor circuits. Callouts note that the relay feeds the shift, EPC and torque converter clutch solenoids and that OSS frequency drives shift scheduling.

AI caption October 2017 · Photo 305 of 378