C0145
Brake Assist System Malfunction
2012-2016 Subaru Impreza 2.0L H4
High SeverityChassisGeneric (SAE)
Description
The emergency brake assist system that provides additional braking force during panic stops has malfunctioned.
Symptoms
- Brake assist warning light
- Reduced braking force during emergency stops
- ABS light may also be on
Common Causes
- Brake pedal position sensor fault
- Brake pressure sensor malfunction
- ABS module failure
- Brake booster assist solenoid fault
Diagnostic Steps
- Test brake pedal position sensor operation
- Check brake pressure sensors
- Perform emergency stop test and observe brake assist activation
- Inspect brake booster assist solenoid if equipped
- Check for related pedal sensor codes
Repair Notes
Diagnose root sensor or actuator fault. Brake assist uses data from multiple sensors.
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
C0145 on Other Vehicles
Common Questions
What does code C0145 mean on a 2012-2016 Subaru Impreza?
C0145 stands for "Brake Assist System Malfunction". The emergency brake assist system that provides additional braking force during panic stops has malfunctioned.
What are the symptoms of C0145 on a Subaru Impreza?
Common symptoms of C0145 include: Brake assist warning light, Reduced braking force during emergency stops, ABS light may also be on.
What causes C0145 on a 2012-2016 Subaru Impreza?
Common causes of C0145 include: Brake pedal position sensor fault, Brake pressure sensor malfunction, ABS module failure, Brake booster assist solenoid fault.