Pinpoint Test 12: DTC P0532 Or P0533

PINPOINT TEST 12: DTC P0532 OR P0533

Normal Operation

Under normal operation, the A/C pressure transducer receives a ground from the PCM through circuit (Y/V). A 5-volt reference voltage is supplied to the A/C pressure transducer from the PCM through circuit (Y/G). The A/C pressure transducer sends a voltage to the PCM through circuit (Y/G) to indicate the A/C pressure.

- DTC P0532 (A/C Pressure Refrigerant Sensor A Circuit Low) - The A/C pressure transducer inputs a voltage to the PCM. If the voltage is below the calibrated level this DTC sets.
- DTC P0533 (A/C Pressure Refrigerant Sensor A Circuit High) - The A/C pressure transducer inputs a voltage to the PCM. If the voltage is above the calibrated level this DTC sets.

Possible Causes
- Wiring, terminals or connectors
- A/C pressure transducer
- PCM

Diagnostic Procedure

NOTE:When disconnecting and reconnecting the pressure transducer electrical connector, make sure that the connector-locking device is in place and that the locking device and connector are correctly and fully seated.