Pinpoint Test A : P0532:00, P0533:00: Notes
Refer to MANUAL CLIMATE CONTROL SYSTEM for schematic and connector information.
Normal Operation and Fault Conditions
The A/C pressure transducer receives a ground from the PCM. A 5-volt reference voltage is supplied to the A/C pressure transducer from the PCM. The A/C pressure transducer then sends a voltage to the PCM to indicate the A/C refrigerant pressure.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P0532:00 | A/C Refrigerant Pressure Sensor A Circuit Low: No Sub Type Information | The A/C pressure transducer inputs a feedback voltage to the PCM. This DTC sets if the feedback voltage is less than 0.26 volt for at least 2 seconds and the ambient air temperature is greater than 0°C (32°F). |
| P0533:00 | A/C Refrigerant Pressure Sensor A Circuit High: No Sub Type Information | The A/C pressure transducer inputs a feedback voltage to the PCM. This DTC sets if the feedback voltage is greater than 4.95 volts for at least 2 seconds and the ambient air temperature is greater than 0°C (32°F). |
Possible Sources
- Wiring, terminals or connectors
- A/C pressure transducer
- PCM
Visual Inspection and Diagnostic Pre-checks
- Inspect loose or corroded PCM and A/C pressure transducer connections.