Steering wheel height adjustment not working

Make: Lancia
Model: Thesis Factory Service Manual
Year: 2002–2009
Section: Seats › Steering wheel height adjustment not working

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Fault diagnosisSteering wheel height adjustment not working

STEERING WHEEL HEIGHT ADJUSTMENT NOT WORKING

The axial/vertical adjustment of the steering wheel is carried out by means of the control located at the side of the steering column connected to the Steering Position Node.

The Steering Position Node is, in turn, connected to the axial/vertical adjustment motors and the potentiometers connected to the two motors are designed to memorize the position of the steering column.

When the speed of the vehicle exceeds 10 Km/h the adjustment of the steering column by recalling the position memorized is not possible.

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
1	CHECK USING DIAGNOSTIC EQUIPMENT.	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Connect the Examiner diagnostic equipment to the diagnostic connect and check the following at the Driving Position NodeIn errors ambient that there are no faults In parameters ambient the plausibility of the steering column parameter (UP/DOWN/FORWARD/BACKWARD) In active diagnosis ambient the operation of the axial/vertical steering wheel adjustment motor	Move on to Step	1. Presence of errors	1. Continue following the instructions for the equipment
			2. Parameter not plausible	Move on to Step
			3. VERTICAL/AXIAL adjustment motor not working.	Move on to Step
2	COMPONENT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Remove the steering column adjustment control and check that it is working. Continue following the instructions in the test 4110AA	Move on to Step	Steering adjustment control faulty	Replace the adjustment control
3	ELECTRICAL SYSTEM CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the continuity/insulation between: adjustment control and steering position node adjustment control and dashboard/rear coupling dashboard/rear coupling and driver's seat coupling driver's seat coupling and Steering Position Node (Wiring Diagram ) E3035 STEERING WHEEL ADJUSTMENT	Move on to Step	Electrical equipment faulty	Restore the electrical connection. (Wiring Diagram ) E3035 STEERING WHEEL ADJUSTMENT
4	ELECTRICAL SYSTEM CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Remove the steering column cover, connect the Examiner diagnostic equipment to the diagnostic connect and check the following at the Driving Position Node in active diagnosis:with the help of a voltmeter and with the active diagnosis activated, check for power supply positive at the motor (Wiring Diagram ) E3035 STEERING WHEEL ADJUSTMENT	Move on to Step	No positive	Move on to Step
5	ELECTRICAL SYSTEM CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Remove the seat and check the continuity/insulation between: adjustment control and steering position node motors adjustment motors and dashboard/rear coupling dashboard/rear coupling and driver's seat coupling driver's seat coupling and Steering Position Node (Wiring Diagram ) E3035 STEERING WHEEL ADJUSTMENT	Move on to Step	Electrical equipment faulty	Restore the electrical connection (Wiring Diagram ) E3035 STEERING WHEEL ADJUSTMENT
6	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present		Fault persists	Replace the Driving Position Node
7	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	check that the fault is no longer present		Fault persists	Replace the steering column adjustment motors. See in Op. 4110A20 Steering wheel adjustment DEVICE - Check

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Parts & tools for this job Staging For 2002 Lancia Thesis

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