169000675 - Z85 IMPOSSIBLE TO ENTER FAULT DIAGNOSIS AT ABS CONTROL UNIT

The diagnostic tester will not allow diagnosis of the ABS control unit

1	DIAGNOSTIC CIRCUIT CHECK	All OK	Problems encountered	Operation
	Check that the power supply for the diagnostic socket is correct See E8010 DIAGNOSTIC MULTIPLE CONNECTOR Also check the continuity of the K lineCheck the operation of the Body Computer	Move on to Step 2 1	No diagnostic socket power supply Continuity problems at K line Body Computer defective	Restore diagnostic socket power supply Renew the wiring, if necessary, replace the faulty components Replace Body Computer    Op. 5505A32 BODY COMPUTER - R R
2	ABS CONTROL UNIT POWER SUPPLY CHECK	All OK	Problems encountered	Operation
	Check the power supply to the ABS control unit is correct and the power supply to the diagnostic socket is correct See E7020 ABS Check that the fuse in the junction unit under the dashboard is still working properly	Move on to Step 3 1	No control unit power supply Fuse blown	Renew the wiring, if necessary replace the ABS electrohydraulic control unit    Op. 3340A12 ABS HYDRAULIC AND ELECTRONIC CONTROL UNIT Search for and eliminate the problem that caused the fuse to blow, then renew the wiring
3	CHECK ON CORRECT OPERATION	All OK	Problems encountered	Operation
	Connect the diagnostic equipment and check that it is possible to enter into the fault diagnosis for the ABS control unit	End of diagnosis