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Home >> Dodge and Ram >> 2008 >> Caliber R/T, AWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0633 To P1501 >> P0647-A/C Control Circuit High >> Possible Causes

Possible Causes

Possible Causes 
INTERMITTENT DTC
(C27) A/C COMPRESSOR CONTROL CIRCUIT SHORTED TO VOLTAGE
(C27) A/C COMPRESSOR CONTROL CIRCUIT OPEN OR HIGH RESISTANCE
(Z916) GROUND CIRCUIT OPEN OR HIGH RESISTANCE
A/C COMPRESSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.

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