H29 STEERING HEAVY WITH POOR RETURN - Fiat - IDEA - eLearn

2398762 - H29 STEERING HEAVY WITH POOR RETURN

The Customer complains of the steering being heavy and/or poor response

1	TYRE CHECK	All OK	Problems met	Operation
		Results of the tests
	Check the condition and wear of the front tyres, in particular: Tyre inflation pressure. One tyre is more worn than the other. Tyres worn on the inside. Tyres worn on the outside.	Continue to Step 2	Tyre inflation pressure not correct.	Restore the correct tyre inflation pressure.
		Continue to Step 2	One of the tyres worn more than the other, on the inside and/or on the outside	Adjust the steering geometry / toe in.
2	STEERING HEAVINESS UNIFORMITY CHECK	All OK	Problems met	Operation
	With the vehicle stationary and the engine not running, check that the heaviness of the steering does not vary from one end of travel position to the other.	Continue to Step 3	Excessive, constant hardening in both steering directions.	Continue to Step 4
		Continue to Step 3	Heaviness only at some steering points	Continue as instructed See table H10 STEERING HARD
3	STEERING HEAVINESS CHECK	All OK	Problems met	Operation
	Check what type of steering rotation resistance is present, in the following order: Vehicle stationary, ignition off. Vehicle stationary, engine started. Vehicle stationary with engine started using the city button	Continue to Step 9	Excessive hardness when steering	Continue to Step 4
			The power assistance does not change from when the ignition is OFF to when the engine is started up.	Continue as instructed See table H30 ELECTRIC STEERING NOT WORKING
			The power assistance does not change when the city button is pressed.	Continue as instructed See table K16 CITY WARNING LIGHT ON
4	STEERING COLUMN CHECK	All OK	Problems met	Operation
	Check the hardness of the steering column rotation after having disconnected it from the steering box	Continue to Step 5	The electric steering column turns stiffly	Continue to Step 6
		Continue to Step 5	The electric steering column turns freely.	Continue as instructed See table H29 STEERING HEAVY WITH POOR RETURN
5	STEERING BOX CHECK	All OK	Problems met	Operation
	After having disconnected the steering box from the electric steering column, manually move the front wheels and check the hardening of the steering box.	Continue to Step 6	Steering box faulty with possible rack hardening and/or tooth/teeth broken and/or bearing and/or pinion broken	Continue as instructed See table H29 STEERING HEAVY WITH POOR RETURN
6	CHECK ON EXTENT OF FAULTS	All OK	Problems met	Operation
	The hardness and/or return of the steering is even (the EPS system does not assist the return of the steering with the vehicle stationary): check the extent of the problem.	Continue to Step 7	The heaviness is extensive	Replace the EPS system Op. 4410D20
7	CHECK ON EXTENT OF FAULTS	All OK	Problems met	Operation
	Check that there are no impluses at the steering wheel when steering with the vehicle stationary	Continue to Step 9	There are impulses coming from the steering wheel	Replace the EPS system motor Op. 4410D30
8	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Continue to Step 2