OBD-II code · Powertrain (generic)
P0AFC Hybrid/EV Battery Pack Sensor Module
The HV battery pack sensor module reports an internal fault. Cell-level voltage and temperature monitoring may be impaired.
Is it safe to drive with P0AFC?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyInternal sensor module fault
- PossibleCommunication lost with BMS
- Less likelyPack cell imbalance approaching service threshold
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
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 3–10 h
- Emissions test
- Usually unaffected
- Parts involved
- Hv Battery Pack Sensor Module
Related codes
- P0AF9Hybrid/EV Battery System Voltage Unstable
- P0AFAHybrid/EV Battery System Voltage Low
- P0AFBHybrid/EV Battery System Voltage High
- P0AFDHybrid/EV Battery Pack Temperature Too Low
- P0AFEHybrid/EV Battery System Voltage Too Low for Voltage Step Up Conversion
- P0AFFSystem Voltage Too Low for Voltage Step Down Conversion
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.