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3. 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 4 4. A/C CLUTCH RELAY CONTROL CIRCUIT OPEN Turn the ignition off. Remove the A/C Clutch Relay from the PDC. Disconnect the ECM harness connector. Measure the resistance of the A/C Clutch Relay Control circuit. Is the resistance below 10.0 ohms? Yes >> Go To 5 No >> Repair the A/C Clutch Relay Control circuit for an open. Perform the ECM Verification Test Ver. 1 (Refer to 9 - 9 - 1130 ENGINE DIESEL DIAG KJ |