P2BCEBattery Charging System Negative Contactor B Control Circuit/Open
- Generic OBD-II code · Powertrain
- How the car detects it
- P2BCE watches the coil drive of negative charging contactor B for an open line or a driver whose real state differs from its command. No manufacturer documents P2BCE publicly. The closest published test is GM's P0D11 for minus contactor A in the Volt and the ELR: an output above 4 V with the driver off, a voltage close to supply, or a coil current under 57 mA with the driver on all count as faults, and the status of the charging high-voltage interlock belongs to the enable conditions; GM rates it Type A. CARB makes such charging-circuit checks mandatory for plug-in models. Broken wires near the battery, pushed-back terminals and an open coil top the list. Range/performance, low and high are P2BCF–P2BD1, the plus side P2BC7. Without its return contactor that charging mode is lost.
- What you may notice
- Charging via the contactor B path not possible
- Charging fault indication
- Likely causes
- LikelyControl wire or terminal of negative contactor B open
- PossibleCoil of negative contactor B open
- RareDriver stage in the module defective
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.