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Home >> Chrysler >> 2025 >> Pacifica Plug-In Hybrid Select >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0645 To P0784 >> DTC Troubleshooting >> P0645 A/C Control Circuit/Open >> Possible Causes

Possible Causes

Possible Causes
A/C CLUTCH RELAY CONTROL CIRCUIT OPEN
A/C CLUTCH RELAY CONTROL CIRCUIT SHORTED TO GROUND
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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