OBD-II code · Powertrain (generic, extended)
P2C44 Battery Isolation/Voltage Stabilization Control Circuit Performance
The battery isolation/voltage stabilization module reports a control circuit performance condition. Power supply quality during start/stop or load shedding is impaired.
Is it safe to drive with P2C44?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyModule response outside calibration
- PossibleHigh-resistance contact in connector
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Battery Isolation Module, Wiring Harness, Ecm
Related codes
- P2C41Fan 3 Performance/Stuck Off
- P2C42Fan 4 Performance/Stuck Off
- P2C43Battery Isolation/Voltage Stabilization Control Circuit
- P2C45Battery Isolation/Voltage Stabilization Control Circuit Low
- P2C46Battery Isolation/Voltage Stabilization Control Circuit High
- P2C47Battery Isolation/Voltage Stabilization Control Circuit Intermittent
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.