22 · Diagnostics

Central locking / not working

Make: Fiat
Model: Stilo Factory Service Manual
Year: 2001–2007
Section: Doors › Central locking / not working

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Fault diagnosisCentral locking / not working

CENTRAL LOCKING / NOT WORKING

When the door lock is operated with the mechanical key or from inside, via the safety catch, the central locking system does not work.

The door open/close command is received by the body computer node via the B-CAN network The Node sends the signal received to the door nodes and the boot compartment node (if present), which open/close the side doors and control boot closure directly.

0	PRELIMINARY CHECK	All OK	Problems met	Operation
		Results of the tests
	Check the 'independent driver door' option is deactivated.	Continue to Step 1	Function enabled	Disable the instrument panel node function
1	PRELIMINARY CHECK	All OK	Problems met	Operation
	Check the problem does not persist when the door is opened/closed from the remaining door lock	Continue to Step 3	Problem persists	Continue to Step 2
2	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the Examiner and carry out active diagnosis on the defective door node.	Continue to Step 3	The door does not close/open	Continue to Step 4
3	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Keep the Examiner connected and check: for inactive control units; for control units with errors for control units with error in CAN line	Continue to Step 8	Presence of anomalies	Continue following the instructions for the diagnostic equipment.
4	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Use the Examine to check that the change in door open/close switch status has been downloaded	Continue to Step 7	The door open/close switch signal has not been correctly downloaded.	Continue to Step 5
5	CHECKING ELECTRICAL CIRCUIT	All OK	Problems met	Operation
	Check continuity/insulation of the electrical connection between the defective door lock and the door node See E3040 CENTRAL LOCKING	Continue to Step 6	Electrical connection interrupted or not insulated	Restore the electrical connection See E3040 CENTRAL LOCKING
6	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		problem persists	If the front door is faulty, change the defective door lock Op. 7005N21 Search for the fault starting from another symptom'
	Check that the fault is no longer present		Problem persists	If the rear door is faulty, change the defective door lock Op. 7010N21 Search for the fault starting from another symptom'
7	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		Problem persists	Replace the defective door Node Search for the fault starting from another symptom'
8	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		Problem persists	Replace the Body Computer Op. 5505A32 Search for the fault starting from another symptom'

‹ Prev Front seat heating not working Next › Central locking / not working with remote control

Parts & tools for this job For 2001 Fiat Stilo

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