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Home >> Dodge and Ram >> 2016 >> Durango R/T, AWD >> Repair and Diagnosis >> Engine Performance >> System >> 5.7L - DTCS P063A To P2167 >> DTC Troubleshooting >> P0645-A/C Control Circuit/Open >> Possible Causes

Possible Causes

Possible Causes
A/C CLUTCH RELAY CONTROL CIRCUIT OPEN/HIGH RESISTANCE
A/C CLUTCH RELAY CONTROL CIRCUIT SHORTED TO GROUND
A/C CLUTCH RELAY
POWER DISTRIBUTION SENSOR (PDC)
POWERTRAIN CONTROL MODULE (PCM)

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

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