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• When Monitored: • Set Condition: Possible Causes INTERMITTENT CONDITION A/C CLUTCH RELAY A/C CLUTCH RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE ECM Diagnostic Test 1. A/C CLUTCH RELAY OPERATION NOTE: If the ECM detects and stores a DTC, the ECM also stores the engine/vehicle operating conditions NOTE: Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may With the scan tool, actuate the A/C Clutch Relay. Is the A/C Clutch Relay clicking? Yes >> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) No >> Go To 2 2. A/C CLUTCH RELAY Turn the ignition off. Remove the A/C Clutch Relay from the PDC. Turn the ignition on. Using a 12-volt test light connected to 12-volts, probe the A/C Clutch With the scan tool, actuate the A/C Clutch Relay. Does the test light cycle on and off? Yes >> Replace the A/C Clutch Relay. Perform the ECM Verification Test Ver. 1 (Refer to 9 - No >> Go To 3 9 - 1126 ENGINE DIESEL DIAG KJ |