C0145
Brake Assist System Malfunction
2016-2021 Mazda CX-3 2.0L I4
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
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0025LF Wheel Speed Sensor Circuit Intermittent
C0145 on Other Vehicles
Common Questions
What does code C0145 mean on a 2016-2021 Mazda CX-3?
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 Mazda CX-3?
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 2016-2021 Mazda CX-3?
Common causes of C0145 include: Brake pedal position sensor fault, Brake pressure sensor malfunction, ABS module failure, Brake booster assist solenoid fault.