C0055
ABS Front Inlet Valve Solenoid Circuit
2002-2009 GMC Envoy 4.2L I6
High SeverityChassisGeneric (SAE)
Description
Malfunction detected in the front ABS inlet valve solenoid circuit inside the hydraulic modulator.
Symptoms
- ABS warning light on
- ABS not functioning on front wheels
- Longer stopping distances
- Brake pedal pulsation absent during ABS event
Common Causes
- Faulty inlet valve solenoid
- ABS module internal failure
- Wiring to module damaged
- Corroded module connector
Diagnostic Steps
- Check ABS module connector for corrosion
- Test solenoid resistance through module connector pins
- Inspect wiring between ABS module and ECU
- Command solenoid activation with scan tool
- Check for internal module fault codes
Repair Notes
If solenoid has failed internally, the ABS hydraulic modulator assembly must be replaced.
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
C0055 on Other Vehicles
Common Questions
What does code C0055 mean on a 2002-2009 GMC Envoy?
C0055 stands for "ABS Front Inlet Valve Solenoid Circuit". Malfunction detected in the front ABS inlet valve solenoid circuit inside the hydraulic modulator.
What are the symptoms of C0055 on a GMC Envoy?
Common symptoms of C0055 include: ABS warning light on, ABS not functioning on front wheels, Longer stopping distances, Brake pedal pulsation absent during ABS event.
What causes C0055 on a 2002-2009 GMC Envoy?
Common causes of C0055 include: Faulty inlet valve solenoid, ABS module internal failure, Wiring to module damaged, Corroded module connector.