C0166

C0166 59
Excessive Supply Valve Circuit, time-out





Fault symptom
ABS/TCS/ESP warning lamp on.
Messages shown in SID.
Steering column lock not working.
On-board diagnosis
Type of diagnosis:
Continuous
Enable criteria:
Ignition ON.
Valve activated
Fault criteria:
Exceeded activation time for the valves
System reaction to a fault:
No ABS function
No TCS/ESP function
Diagnostic help
Diagnosis regards:
Electrical fault in the component.
The DTC can be set if the car is driven with the Handbrake applied.
Functions in the diagnostic tool related to the fault:
Test value:
Valve Feed
(See also description of readings/activations in diagnostic tool)