OBD-II code · Powertrain (generic)
P0AE9 Hybrid/EV Battery Temperature Sensor D Circuit Range/Performance
The ECM detects a circuit range/performance fault on the hybrid/ev battery temperature sensor d circuit. Reading cannot be used reliably for control.
Is it safe to drive with P0AE9?
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 Temp Sensor D, Wiring Harness, Bms
Related codes
- P0A9CHybrid/EV Battery Temperature Sensor A Circuit Range/Performance
- P0AC6Hybrid/EV Battery Temperature Sensor B Circuit Range/Performance
- P0ACBHybrid/EV Battery Temperature Sensor C Circuit Range/Performance
- P0BC3Hybrid/EV Battery Temperature Sensor E Circuit Range/Performance
- P0C34Hybrid/EV Battery Temperature Sensor F Circuit Range/Performance
- P0AE6Hybrid/EV Battery Precharge Contactor A Control Circuit Low
- P0AE7Hybrid/EV Battery Precharge Contactor A Control Circuit High
- P0AE8Hybrid/EV Battery Temperature Sensor D Circuit
- P0AEAHybrid/EV Battery Temperature Sensor D Circuit Low
- P0AEBHybrid/EV Battery Temperature Sensor D Circuit High
- P0AECHybrid/EV Battery Temperature Sensor D Circuit Intermittent/Erratic
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.