P2C94
Hybrid/EV Battery Contactor Control Supply Circuit/Low
The supply circuit for the hybrid battery contactor control reports a low condition. Contactor coils may not energise as expected.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Common causes
Ordered by how often each turns out to be the cause.
- Supply wire shorted to groundCommon
- Supply rail collapses under loadPossible
- Pack cell imbalance approaching service thresholdLess likely
Parts involved
- Hybrid Battery Contactor Control Supply
- Wiring Harness
- Bms
P2C94 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.