OBD-II code · Powertrain (generic)
P0AB2 Hybrid/EV Battery Pack Air Temperature Sensor B Circuit Range/Performance
The ECM detects a circuit range/performance fault on the hybrid/ev battery pack air temperature sensor b circuit. Reading cannot be used reliably for control.
Is it safe to drive with P0AB2?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor characteristic drifted
- PossibleSensor mounting displaced
- Less likelySensor element aged beyond calibration window
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Hv Battery Pack Air Temp Sensor B, Wiring Harness, Bms
Related codes
- P0AADHybrid/EV Battery Pack Air Temperature Sensor A Circuit Range/Performance
- P0AAFHybrid/EV Battery Pack Air Temperature Sensor A Circuit High
- P0AB0Hybrid/EV Battery Pack Air Temperature Sensor A Circuit Intermittent/Erratic
- P0AB1Hybrid/EV Battery Pack Air Temperature Sensor B Circuit
- P0AB3Hybrid/EV Battery Pack Air Temperature Sensor B Circuit Low
- P0AB4Hybrid/EV Battery Pack Air Temperature Sensor B Circuit High
- P0AB5Hybrid/EV Battery Pack Air Temperature Sensor B Circuit Intermittent/Erratic
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.