OBD-II code · Powertrain (generic)
P05E2 A/C Refrigerant Pressure Sensor B Circuit Intermittent or Erratic
The high-side refrigerant pressure sensor B reports intermittent or erratic signal - typically a connector or harness fault on the sensor that lives close to the compressor.
Is it safe to drive with P05E2?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyIntermittent contact at connector
- Less likelyConnector with intermittent contact under vibration
- Less likelyHarness routed against vibrating component
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.4–1.4 h
- Emissions test
- Usually unaffected
- Parts involved
- AC Pressure Sensor B, AC Pressure Wiring B
Related codes
- P05E1A/C Refrigerant Pressure Sensor A Circuit Intermittent or Erratic
- P05DFBrake Pedal Position Sensor B Circuit Intermittent or Erratic
- P05E0Brake Pedal Position Sensor A and B Correlation
- P05E3Park Brake Sensor or Switch Circuit
- P05E4Park Brake Sensor or Switch Circuit Low
- P05E5Park Brake Sensor or Switch Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.