H02 DRIFT WHILST BRAKING - Alfa - 156 - eLearn

3233044 - H02 DRIFT WHILST BRAKING

During braking, the car pulls to the right and/or left.If necessary, carry out a test on a straight, flat road with no cambers.Check the effective deviation from the trajectory by braking and very carefully loosening your grip on the steering wheel

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Preliminarily, check the type, condition and inflation pressure of the tyresCheck that the wheels are correctly fixed	Continue to Step 1	Tyre inflation pressure not correct	Restore the tyre inflation pressures
			Tyres not suitable or worn	Replace the tyres
			Wheel fixing not correct	Tighten the wheels correctly Op. 4450B10
1	CHECK PAD TYPE AND SURFACE	All OK	Problems met	Operation
	Check: condition of pad friction surfaces pad type	Continue to Step 2	Friction surfaces vitrified or with traces of grease, oil or water	Clean, check and eliminate the causes of the fault
			Front brake pads damaged or wrong type	Replace pads Op. 3310A60
			Rear pads damaged or wrong type	Replace the pads Op. 3310B60
2	CHECK DISCS	All OK	Problems met	Operation
	Check: the condition of the brake discs the type of discs	Continue to Step 3	Front discs worn or damaged	Skim or if necessary replace the discs Op. 3310A48
	Check: the condition of the brake discs the type of discs	Continue to Step 3	Rear discs worn or damaged	Replace the discs or, if necessary, replace them Op. 3310B48
3	CHECK BRAKE CALIPERS	All OK	Problems met	Operation
	Check the condition of the brake caliper pistons	Continue to Step 4	Front caliper pistons worn or seized	Replace brake calipers Op. 3310A30
	Check the condition of the brake caliper pistons	Continue to Step 4	Rear brake calipers worn or seized	Replace brake calipers Op. 3310B36
4	CHECK WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket Check that there are no faults in the ABS control unit.	Continue to Step 5	An error is detected in the control unit	Continue according to the instructions for the diagnostic equipment
		Continue to Step 5	Lack of dialogue with the control unit	Restore: the connection between the ABS control unit and the diagnostic connector the supply for the ABS control unit ( See E7020 ABS ).
5	ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Using the diagnostic equipment (Examiner or other instruments) carry out the active diagnosis of: pump motor solenoid valves	Continue to Step 6	Fault detected in the pump or a solenoid	Replace electrohydraulic unit-electronic control unit Op. 3340A12
6	CHECK BRAKE CIRCUIT	All OK	Problems met	Operation
	Check the condition of the brake circuit	Continue to Step 7	Leaks or damage in the components of the circuit	Replace the components involved or replace the brake servo unit Op. 3330D10
7	CHECK 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'