F02 REAR WHEELS LOCK WHILST BRAKING - Alfa - 166 - eLearn

When the brakes are operated, the distribution between front and rear wheels is not correct: at worst, the rear wheels may lock and the car may skid

1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
		Results of the tests
	Connect diagnostic equipment (Examiner or other instruments) to the diagnostic socket. Verify: that there are no faults in the ABS control unit the plausibility of all the parameters	Continue to Step 2	An error is detected in the control unit	Continue following the instructions for the diagnostic equipment
		Continue to Step 2	Lack of dialogue with the control unit	Restore the connection between the ABS control unit and diagnostic connector ( See E7020 ABS )
2	ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Using the diagnostic equipment (Examiner or other iinstruments) carry out the active diagnosis of: pump motor solenoid valves	Continue to Step 3	Pump and/or solenoids faulty	Replace electrohydraulic unit-electronic control unit Op. 3340A12
3	CHECK BRAKE PIPES/HOSES AND BLEEDING	All OK	Problems met	Operation
	Visually check that there are no kinks or restrictions in the brake pipes, bleed the system and check that fluid emerges from the bleed screws as normal	Continue to Step 4	There are kinks or restrictions, fluid does not come out normally	Replace the faulty section of pipe
4	HECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Search for the fault starting from another symptom'