P2C98Hybrid/EV Battery Disable Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Can trigger limp mode
- How the car detects it
- P2C98 flags a battery disable line whose level is above the permitted range, usually through a short to 12 V or a sender that drives the line too high. Unlike the low case, the risk here can be hidden: if a high level means all clear, a stuck-high line would no longer pass on a real shutdown request. That is the point of such a wire in Volkswagen patent US9586481B2, which lets a crash signal open the contactor within 10–100 ms, and in Coda patent US20110304202A1, which disconnects the battery once airbag deployment is decided. The controller therefore flags the line even while driving seems normal; the CAN path normally remains as a backup. No manufacturer documents P2C98 publicly. CARB requires monitoring of hybrid components. Inspect the line for contact with feed wires.
- What you may notice
- High-voltage system warning, often without noticeable driving fault
- Ready mode may be blocked after the next restart, depending on maker
- Likely causes
- LikelyDisable line shorted to 12 V supply
- PossibleSending module driving the line above the valid level
- RareInput stage in the battery controller misreading the level
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €50 – €2,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.