P0297
Vehicle Overspeed Condition
Vehicle speed exceeded a defined safety threshold. ECU may trigger fuel cut or speed limiter.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: easy
Common causes
Ordered by how often each turns out to be the cause.
- Speed limiter triggered (informational)Common
Parts involved
- Speed Sensor
- Speed Limiter
P0297 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.