C0105moderate severityChassis
Brake Pedal Position Sensor Circuit Low
on 2021 BMW i3 42 kWh Single Motor RWD · RWD
What this code means
The brake pedal position sensor signal voltage is below the minimum threshold.
Symptoms
- ABS light on
- Brake assist fault
- Module reads brake as always applied
Common causes
- Short to ground in sensor circuit
- Faulty sensor
- Low supply voltage to sensor
Diagnostic steps
- Test sensor signal voltage
- Check for shorts to ground
- Verify supply voltage at sensor
- Inspect wiring harness
Repair notes
Repair short circuit or replace brake pedal position sensor.
Other Chassis codes on this vehicle
C0021
LF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0025
LF Wheel Speed Sensor Circuit Intermittent
C0026
RF Wheel Speed Sensor Circuit Intermittent
C0027
LR Wheel Speed Sensor Circuit Intermittent
C0028
RR Wheel Speed Sensor Circuit Intermittent
C0035
Left Front Wheel Speed Sensor Circuit
C0036
Left Front Wheel Speed Signal Erratic