C05C0
Brake Pedal Position Sensor A Not Learned
Brake pedal position sensor A reference not learned — typically required after sensor or pedal replacement.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Common causes
Ordered by how often each turns out to be the cause.
- Calibration not performedCommon
Parts involved
- Brake Pedal Sensor A
C05C0 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.