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Home >> Dodge and Ram >> 2018 >> Durango SXT, AWD >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P057F To P105C >> DTC Troubleshooting >> P0645-A/C Control Circuit/Open >> Possible Causes
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Possible Causes

Possible Causes
A/C COMPRESSOR CONTROL CIRCUIT SHORTED TO VOLTAGE
A/C COMPRESSOR CONTROL CIRCUIT SHORTED TO GROUND
A/C COMPRESSOR CONTROL CIRCUIT OPEN OR HIGH RESISTANCE
POWER DISTRIBUTION CENTER (PDC)
POWERTRAIN CONTROL MODULE (PCM)

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