ABS Isolation Valve Solenoid Circuit
1990-1998 Rolls-Royce Silver Spur 6.75L V8 🇨🇦
Description
Malfunction in the ABS isolation valve solenoid, used to isolate the master cylinder from the ABS modulator.
Symptoms
- ABS light on
- Brake pedal feels unusual
- ABS not functioning
- Pedal sinks during ABS activation
Common Causes
- Isolation valve solenoid failure
- ABS module internal fault
- Wiring open or short
- Contaminated brake fluid
Diagnostic Steps
- Test solenoid resistance through connector
- Command isolation valve with scan tool
- Check brake fluid condition
- Inspect module connector pins
Repair Notes
Replace ABS modulator assembly. Bleed brake system thoroughly.
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
C0059 on Other Vehicles
Rolls-Royce Corniche
2000-2002 6.75L V8
Rolls-Royce Cullinan
2019-2024 6.75L V12 Twin Turbo
Rolls-Royce Dawn
2016-2024 6.6L V12 Twin Turbo
Rolls-Royce Ghost
2010-2024 6.6L V12 Twin Turbo
Rolls-Royce Phantom VII
2003-2017 6.75L V12
Rolls-Royce Phantom VIII
2018-2024 6.75L V12 Twin Turbo
Rolls-Royce Silver Seraph
1998-2002 5.4L V12
Rolls-Royce Spectre
2023-2024 Electric AWD
Common Questions
What does code C0059 mean on a 1990-1998 Rolls-Royce Silver Spur?
C0059 stands for "ABS Isolation Valve Solenoid Circuit". Malfunction in the ABS isolation valve solenoid, used to isolate the master cylinder from the ABS modulator.
What are the symptoms of C0059 on a Rolls-Royce Silver Spur?
Common symptoms of C0059 include: ABS light on, Brake pedal feels unusual, ABS not functioning, Pedal sinks during ABS activation.
What causes C0059 on a 1990-1998 Rolls-Royce Silver Spur?
Common causes of C0059 include: Isolation valve solenoid failure, ABS module internal fault, Wiring open or short, Contaminated brake fluid.