Z67 VALVE RELAY ERROR - Lancia - MUSA - eLearn

184000619 - Z67 VALVE RELAY ERROR

The diagnostic equipment signals the following error: C1121 Valve Relays

This error is signalled if the control unit detects an open circuit or short circuit (positive or earth) for the relay or the feedback, if the relay or the operating circuit is damaged

1	ELECTRICAL CONNECTION CHECK	All OK	Problems encountered	Operation
		Results of the tests
	Check that the ABS rol unit connector is not faulty at the pins on both the wiring side and the control unit side by carrying out a visual inspection In particular, check that: They are not oxidized They are not distorted or broken Check the state of the power fuse in the engine compartment junction unit See E7020 ABS	Move on to Step 2	Wiring connections faulty	Restore the correct connections See E7020 ABS
			Control unit side connector faulty	Replace the ABS electrohydraulic control unit Op. Op. 3340A12 ABS HYDRAULIC AND ELECTRONIC CONTROL UNIT
			Wiring side connector faulty	Replace the ABS wiring Op. 5505C28 INTERGRATED ENGINE BAY AND ABS SYSTEM WIRING - R R
			Fuse faulty	Identify the cause of the problem with the fuse and eliminate it, then replace the fuse
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	The fault persists	Replace the ABS electrohydraulic control unit Op. Op. 3340A12 ABS HYDRAULIC AND ELECTRONIC CONTROL UNIT