Pinpoint Test A : P0532, P0533: Notes
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
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 pressure.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P0532 | A/C Refrigerant Pressure Sensor "A" Circuit Low | 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 deg. C (32 deg. F). |
| P0533 | A/C Refrigerant Pressure Sensor "A" Circuit High | 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 deg. C (32 deg. F). |
Possible Sources
- Wiring, terminals or connectors
- A/C pressure transducer
- PCM
Visual Inspection and Diagnostic Pre-checks
- Inspect for loose or corroded PCM and A/C pressure transducer connections.