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Powertrain Control Module C175

Fig 1: Identifying Powertrain Control Module C175
G03245335Courtesy of FORD MOTOR CO.
POWERTRAIN CONTROL MODULE C175 CIRCUIT REFERENCE

Pin Number (s) Circuit Designation/Description Normal Condition/Measurement
41 CKT 347 (BK/YE) A/C cycling switch input to PCM Greater than 10 volts with the ignition on and engine running.
69 CKT 331 (PK/YE) A/C compressor clutch relay control Greater than 10 volts with the ignition on.
86 CKT 349 (TN/LG) A/C pressure transducer input to PCM Greater than 10,000 ohms to chassis ground and 0 volts.
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