22 · Diagnostics

Central locking / not working

Fault diagnosisCentral locking / not working

CENTRAL LOCKING / NOT WORKING

When the central door locking is operated with the key or remote control (if present), the doors do not open and do not close

1	FUSE CHECK	All OK	Problems met	Operation
		Results of the tests
	Check condition of fuses See See E3040 CENTRAL LOCKING	Continue to Step 2	Fuse broken	Replace the fuse, after having searched for the cause of the problem
2	CHECK WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Check the opening/closing of the doors through active diagnosis	Continue to Step 6	The doors do not open/close	Continue to Step 3
3	ELECTRICAL CIRCUIT CHECK	All OK	Problems met	Operation
	Check the electrical connection between the Body Computer Node and the door locks See See E3040 CENTRAL LOCKING	Continue to Step 4	Electrical connector in door lock not properly connected	Connect the electrical connector properly to the door lock
		Continue to Step 4	Connection broken or not insulated	Restore continuity/insulation of the electrical connection See See E3040 CENTRAL LOCKING
4	CHECKING ELECTRICAL SIGNAL	All OK	Problems met	Operation
	Disconnect the electrical connector for the door lock and check for the opening command signal	Continue to Step 5	Opening command signal absent.	Continue to Step 6
5	Continue as instructed by the tester	All OK	Problems met	Operation
	Check that the fault is no longer present.	End of diagnosis	The fault persists	Replace the door lock Op. Op. 7005N21 FRONT SIDE DOOR LOCK MOTOR-LOCK ASSEMBLEY-R R
6	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present.	End of diagnosis	The fault persists	Replace the body computer node Op. Op. 5505A32 BODY COMPUTER - R R

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