Powertrain
generic / SAE
P0531
A/C Refrigerant Pressure Sensor Range/Performance
The A/C refrigerant pressure sensor signal is implausible against operating conditions. Reading does not change as expected when the compressor cycles or ambient conditions change.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / 31
Possible causes
- Pressure sensor drift high
- Refrigerant charge incorrect medium
- Wiring fault low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 80–400 €
- Estimated time: 0.3–1.5 h
- Component: ac pressure sensor
- Component: ac compressor
Sources
References
sae:J2012