OBD-II code · Powertrain (generic, extended)
P2C43 Battery Isolation/Voltage Stabilization Control Circuit
The battery isolation/voltage stabilization module reports a control circuit condition. Power supply quality during start/stop or load shedding is impaired.
Is it safe to drive with P2C43?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyIsolation/stabilization module failed
- PossibleWiring or connector fault
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
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.