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Home >> Dodge and Ram >> 2022 >> ProMaster 2500 >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P062C To P0698 >> Diagnosis And Testing >> P0645-A/C Control Circuit/Open >> Possible Causes

Possible Causes

Possible Causes
A/C CLUTCH RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE
A/C CLUTCH RELAY CONTROL CIRCUIT SHORTED TO GROUND
A/C CLUTCH RELAY CONTROL CIRCUIT OPEN
A/C CLUTCH RELAY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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