Brake Assist Solenoid Circuit
2014-2016 Chevrolet Spark EV Electric Motor
Description
Malfunction in the brake assist solenoid that provides additional brake pressure during emergency stops.
Symptoms
- Brake assist inactive
- Warning light for brake assist
- Longer stopping distance in emergencies
Common Causes
- Faulty brake assist solenoid
- Solenoid wiring open or shorted
- Module driver failure
- Solenoid mechanically stuck
Diagnostic Steps
- Test solenoid resistance
- Check wiring to solenoid
- Command solenoid with scan tool
- Inspect for mechanical binding
- Test module output signal
Repair Notes
Replace brake assist solenoid or repair wiring.
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
C0146 on Other Vehicles
Chevrolet Astro
1995-2005 4.3L V6 Vortec
Chevrolet Avalanche
2002-2006 5.3L V8 Vortec
Chevrolet Avalanche
2002-2006 8.1L V8 Vortec
Chevrolet Avalanche
2007-2013 5.3L V8 Vortec
Chevrolet Avalanche
2007-2013 6.0L V8 Vortec
Chevrolet Aveo
2012-2018 1.6L I4
Chevrolet Beat
2018-2021 1.2L I4
Chevrolet Beretta
1990-1996 2.2L I4
Common Questions
What does code C0146 mean on a 2014-2016 Chevrolet Spark EV?
C0146 stands for "Brake Assist Solenoid Circuit". Malfunction in the brake assist solenoid that provides additional brake pressure during emergency stops.
What are the symptoms of C0146 on a Chevrolet Spark EV?
Common symptoms of C0146 include: Brake assist inactive, Warning light for brake assist, Longer stopping distance in emergencies.
What causes C0146 on a 2014-2016 Chevrolet Spark EV?
Common causes of C0146 include: Faulty brake assist solenoid, Solenoid wiring open or shorted, Module driver failure, Solenoid mechanically stuck.