P0647: A/C Clutch Relay Control Circuit High: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item	Detecting Condition	Possible cause
DTC Strategy	Detects circuit short to high voltage	Poor connection Short to power in A/C relay circuit Faulty A/C relay Faulty ECM
Enable Conditions	After 0.5 sec under conditions below No DTC exists Engine running 11V ≤ Battery voltage ≤ 16V
Threshold value	Short to power
Diagnosis Time	Continuous (More than 5 seconds failure for every 10 seconds test)
MIL On Condition	DTC only (NO MIL ON)