For a complete wiring diagram Refer to Section 8W.When Monitored:With the ignition on. Battery voltage greater than 10.4 volts. TIPM requesting A/C Clutch operation.Set Condition:An overcurrent condition is detected in the A/C Clutch control output circuit. One Trip Fault. Three good trips to turn off the MIL.Possible CausesTERMINAL DAMAGE OR CORROSION A/C CLUTCH GROUND HIGH RESISTANCE(C3) A/C CLUTCH CONTROL OUTPUT CIRCUIT HIGH RESISTANCE(C3) A/C CLUTCH CONTROL OUTPUT CIRCUIT SHORTED TO GROUNDA/C COMPRESSOR CLUTCHTIPMAlways perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).1. A/C CLUTCH OPERATIONIgnition on, engine not running.With a scan tool in the TIPM Actuators, actuate the A/C Clutch.Is the A/C Clutch actuating?YesRefer to the INTERMITTENT CONDITION Diagnostic Procedure.Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)NoGo To 22. VISUAL AND PHYSICAL CONNECTOR AND TERMINAL INSPECTIONTurn the ignition off.Disconnect the C1 TIPM harness connector.Disconnect the A/C Clutch harness connector.Inspect the terminal and connector condition. Check for signs of corrosion build up or damage the would compromise the terminal to controller pin connector.Make sure that all in-line connectors are inspected for corrosion and/or damage.Visually inspect the wiring harness. Look for any chafed, pierced, pinched or partially broken wires hidden in the wire insulation.Were any of the above conditions found?YesRepair or replace as necessary.Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)NoGo To 33. (C3) A/C CLUTCH CONTROL OUTPUT CIRCUIT EXCESSIVE RESISTANCE

With a jumper wire, connect one end to the (C3) A/C Clutch Control Output circuit in the A/C Clutch harness connector and the other to a clean chassis ground.Using a 12-volt test light connected to battery voltage, probe the (C3) A/C Clutch Control Output circuit in the C1 TIPM harness connector.The test light should be illuminated and bright. Compared the brightness to that of a direct connection to the battery.Does the test light illuminate brightly?YesGo To 4NoRepair the excessive resistance in the (C3) A/C Clutch Control Output circuit.Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE).4. (C3) A/C CLUTCH CONTROL OUTPUT CIRCUIT SHORTED TO GROUND

Measure the resistance between ground and the (C3) A/C Clutch Control Output circuit at the A/C Clutch harness connector.Is the resistance below 100 ohms?YesRepair the short to ground in the (C3) A/C Clutch Control Output circuit.Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE).NoGo To 5 5. A/C CLUTCH GROUND CIRCUIT

Using a 12-volt test light connected to battery voltage, probe the (Z906) A/C Clutch Ground circuit in the A/C Clutch harness connector.The test light should be illuminated and bright. Compared the brightness to that of a direct connection to the battery.Does the test light illuminate brightly?YesGo To 6NoRepair the excessive resistance in the (Z906) A/C Clutch Ground circuit.Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)6. A/C CLUTCH CONTROL OUTPUT FROM TIPM

Reconnect the C1 TIPM harness connector.Ignition on, engine not running.With a scan tool in the TIPM Actuators, actuate the A/C Clutch.Using the 12-volt test light connected to ground, probe the (C3) A/C Clutch Control Output circuit in the A/C Clutch harness connector.Does the test light illuminate brightly?YesReplace the A/C Clutch.Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)NoReplace the TIPM in accordance with the Service Information.Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)