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P0532-A/C PRESSURE SENSOR CIRCUIT LOW (CONTINUED) 3. A/C PRESSURE TRANSDUCER With the scan tool, monitor the A/C Pressure Transducer voltage. Is the voltage above 0.6 of a volt? Yes >> Replace the A/C Pressure Transducer. Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) No >> Go To 4 4. (C18) A/C PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C1 FCM harness connector. Measure the resistance between ground and the (C18) A/C Pressure Is the resistance below 100 ohms? Yes >> Repair the short to ground in the (C18) A/C Pressure Sig- nal circuit. Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 No >> Go To 5 5. (C18) A/C PRESSURE SIGNAL CIRCUIT SHORTED TO THE (G180) SENSOR RETURN CIRCUIT Disconnect the C3 FCM harness connector. Measure the resistance between the (C18) A/C Pressure Signal circuit Is the resistance below 100 ohms? Yes >> Repair the short between the (G180) Sensor Return circuit and the (C18) A/C Pressure Signal circuit. Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 No >> Go To 8 9 - 518 ENGINE ELECTRICAL DIAGNOSTICS ND |