16 · Diagnostics

O01 Front seat running not working

Fault diagnosisO01 Front seat running not working

When the lever is operated, the seat does not slide forwards or backwards along the guides

NOTA: The mechanism works better when a person is sitting on the seat.

Step	Test procedure	Result	Action
0	PRELIMINARY CHECKS Preliminarily check: absence of obstacles or dirt on the travel correct lubrication of the guides	OK	Move onto step 1
		Presence of obstacles or dirt along the travel	Restore correct operation End of diagnosis
		Absence of lubrication	Repair correct lubrication End of diagnosis
1	CHECK SEAT RUNNER ATTACHMENTS Remove the seat (Op. 7045A10 ). Check that the seat runners are attached correctly to the car floor	OK	Move onto step 2
1		Faulty attachment of runners	Reattach the seat runners correctly End of diagnosis
2	CHECK SEAT RUNNER GUIDES Check the condition of the seat runner guides and the absence of deformation Check that the guides are attached correctly to the seat	OK	Move onto step 3
		Faulty guide attachment	Refit the guides correctly Op. 7045A22 End of diagnosis
		Faulty guides	Replace the seat runner guides Op. 7045A22 End of diagnosis
3	CHECK SEAT SLIDE RELEASE LEVER Check the release lever for the longitudinal adjustment of the seat. In particular check its condition and that it is fitted correctly	OK	Move onto step 4
3		Release lever faulty	Repair or replace the release lever Op. 7045A29 End of diagnosis
4	CHECK CORRECT OPERATION Check that the fault is no longer present	OK	End of diagnosis
4		Not OK	Fault persists Incorrect selection of diagnostic procedure

Parts & tools for this job Staging For 1997 Alfa Romeo 156

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