169000499 - Z65 MAIN AND PILOT VLVX/USVX VALVE ERROR

The diagnostic equipment signals one or more of the following errors: "C1141 Primary Valve 1 (VLV1)", "C1151 Primary Valve 2 (VLV2)", "C1146 Pilot Valve 1 (USV1)" and/or "C1156 Pilot Valve 2 (USV2)"

this error is signalled if the ASR solenoid valves cannot be activated. This means that there is an open circuit or short circuit (positive or earth) for the solenoid valves or the solenoid valves connection or that the operating circuit is damaged

1	ABS CONTROL UNIT REPLACEMENT	All OK	Problems encountered	Operation
	Replace the ABS electrohydraulic control unit    Op. 3340A12 ABS HYDRAULIC AND ELECTRONIC CONTROL UNIT	Move on to Step 2
2	CHECK ON CORRECT OPERATION	All OK	Problems encountered	Operation
	Delete the errors using the diagnostic equipment.Turn the key OFF and then ON to ensure that the control unit checks whether the errors are still present.Check that the fault is no longer present	End of diagnosis