Brake Assist Solenoid Circuit
2013-2013 Cadillac ATS 2.5L I4
The 2013 Cadillac ATS is equipped with a 2.5L inline-4 engine. Below you'll find detailed c0146 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
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
Common Questions
What does code C0146 mean on a 2013-2013 Cadillac ATS?
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 Cadillac ATS?
Common symptoms of C0146 include: Brake assist inactive, Warning light for brake assist, Longer stopping distance in emergencies.
What causes C0146 on a 2013-2013 Cadillac ATS?
Common causes of C0146 include: Faulty brake assist solenoid, Solenoid wiring open or shorted, Module driver failure, Solenoid mechanically stuck.
Last updated: March 2026