OBD-II code · Body
B0288 HVAC A/C Pressure Sensor Circuit
A fault has been detected in the A/C refrigerant pressure sensor circuit. The compressor may be disabled to protect the system.
Is it safe to drive with B0288?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPressure sensor failure
- PossibleLow refrigerant charge
- PossibleFaulty sensor connector
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.4–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- AC Pressure Sensor, AC Compressor Relay, HVAC Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.