OBD-II code · Chassis
C05C1 Brake Pedal Position Sensor B Not Learned
Brake pedal position sensor B reference not learned — typically required after sensor or pedal replacement.
Is it safe to drive with C05C1?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyCalibration not performed
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.3–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Brake Pedal Sensor B
Related codes
- C05C0Brake Pedal Position Sensor A Not Learned
- C05BEBrake Booster Motor B Position Sensor Supply Circuit High
- C05BFBrake Booster Motor B Position Sensor Supply Circuit Range/Performance
- C05C2Brake Booster Motor A Over Temperature
- C05C3Brake Booster Motor A Supply Circuit
- C05C4Brake Pressure Sensor F Missing Calibration
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.