What does code P0533 mean?
The A/C refrigerant pressure sensor is reporting a high voltage signal, indicating excessive system pressure.
OBD-II Code
P0533 — A/C Refrigerant Pressure Sensor Circuit High Input
The A/C refrigerant pressure sensor is reporting a high voltage signal, indicating excessive system pressure.
Common symptoms
- Compressor shuts off
- very high pressure readings
- intermittent A/C operation
Possible causes
- Overcharged refrigerant
- cooling fans not operating
- short to voltage
Initial recommendation
Verify cooling fan operation, relieve excessive pressure, correct refrigerant charge and inspect sensor.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0533 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more codes