C0105
Brake Pedal Position Sensor Circuit Low
2004-2016 Aston Martin DB9 6.0L V12
Moderate SeverityChassisGeneric (SAE)
Description
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.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0026RF Wheel Speed Sensor Circuit Intermittent
- C0027LR Wheel Speed Sensor Circuit Intermittent
- C0028RR Wheel Speed Sensor Circuit Intermittent
- C0035Left Front Wheel Speed Sensor Circuit
- C0036Left Front Wheel Speed Signal Erratic
C0105 on Other Vehicles
Aston Martin DB11
2016-2024 4.0L V8 Twin Turbo
Aston Martin DB11
2016-2024 5.2L V12 Twin Turbo
Aston Martin DB7
1994-2003 3.2L I6 Supercharged
Aston Martin DBS Superleggera
2019-2024 5.2L V12 Twin Turbo
Aston Martin DBX
2020-2024 4.0L V8 Twin Turbo
Aston Martin Vantage
2005-2024 4.7L V8
Aston Martin Vantage
2018-2024 4.0L V8 Twin Turbo
Common Questions
What does code C0105 mean on a 2004-2016 Aston Martin DB9?
C0105 stands for "Brake Pedal Position Sensor Circuit Low". The brake pedal position sensor signal voltage is below the minimum threshold.
What are the symptoms of C0105 on a Aston Martin DB9?
Common symptoms of C0105 include: ABS light on, Brake assist fault, Module reads brake as always applied.
What causes C0105 on a 2004-2016 Aston Martin DB9?
Common causes of C0105 include: Short to ground in sensor circuit, Faulty sensor, Low supply voltage to sensor.