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Home >> Jeep >> 2021 >> Grand Cherokee L Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (5.7L - DTCS P062A To P1495) >> DTC Troubleshooting >> P0645-A/C Control Circuit/Open >> Possible Causes

Possible Causes

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Possible Causes
A/C COMPRESSOR CONTROL CIRCUIT SHORTED TO VOLTAGE
A/C COMPRESSOR CONTROL CIRCUIT SHORTED TO GROUND
A/C COMPRESSOR CONTROL CIRCUIT OPEN/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  .