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A/C Compressor Clutch Relay

Fig 1: Identifying A/C Compressor Clutch Relay
G03245324Courtesy of FORD MOTOR CO.
A/C COMPRESSOR CLUTCH RELAY CIRCUIT REFERENCE

Pin Number(s) Circuit Designation/Description Normal Condition/Measurement
86 CKT 331 (PK/YE) A/C compressor clutch relay control Resistance of 0 ohms to chassis ground when the A/C is commanded on.
85 CKT 391 (RD/YE) voltage in start and run Greater than 10 volts with the ignition on.
30 CKT 931 (OG) voltage in run Greater than 10 volts with the ignition on.
87 CKT 883 (PK/LB) A/C compressor clutch relay switched output Less than 100 ohms to chassis ground.
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