ABS 5.4

C2415 RL solenoid valves faulty.
C2450 FL solenoid valves faulty.
C2455 FR solenoid valves faulty.
C2485 RR solenoid valves faulty.

GFault symptoms
ABS warning light on. ABS not functioning.

Conditions
The valves are monitored continuously for circuit continuity and short-circuiting.
The valve test starts when the ignition is switched on and the road speed is above 6 km/h.

Diagnostic help
The solenoid valves can be activated using the diagnostic tool.
- Select: "Activate".
- Select: "Valves"

Select the valve from the submenu. The selected valve will be activated at a frequency of 1 Hz for about 30 s.

Replace the control module, see Before Changing A Control Module, refer to General Fault Diagnosis.

Diagnostic procedure
Internal Control Module Fault
^ Change, complete hydraulic unit.