OBD-II code · Chassis
C0520 Brake Pedal Force Sensor Circuit
On systems with brake force sensing the dedicated sensor reports an implausible signal.
Is it safe to drive with C0520?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor failed
- PossibleWiring open
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
- 0.8–2.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Brake Pedal Force Sensor, Sensor Wiring
Related codes
- C051DMulti-axis Acceleration Sensor Module A Missing Calibration
- C051EMulti-axis Acceleration Sensor Module A Intermittent/Erratic
- C051FMulti-axis Acceleration Sensor Module A Correlation
- C0521Multi-axis Acceleration Sensor Module B Range/Performance
- C0522Multi-axis Acceleration Sensor Module B Missing Calibration
- C0523Multi-axis Acceleration Sensor Module B Intermittent/Erratic
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.