22 · Diagnostics

Fuel reserve warning light not working

Fault diagnosisFuel reserve warning light not working

FUEL RESERVE WARNING LIGHT NOT WORKING

With the ignition ON, the fuel reserve warning light in the instrument panel does not come on when the tank is empty;

the warning light on message is sent by the 'body computer node' to the 'instrument panel node' via the B-CAN network.

1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
		Results of the tests
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket and check: the operation of the warning light through active diagnosis.	Continue to Step 2	The warning light does not come on	Replace instrument panel Op. 5560B11
2	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault persists	Replace the Body ComputerOp. 5505A32 Search for the fault starting from another symptom'
3	FUEL LEVEL SENSOR CHECK	All OK	Problems met	Operation
	Check the operation of the fuel level sensor, see test ---	Continue to Step 4	Sensor not working	Replace the fuel pump assembly Op. 1040A70
4	CHECKING ELECTRICAL CIRCUIT	All OK	Problems met	Operation
	Check the continuity/insulation of the cable between the fuel level sensor and the Body Computer: See E4010 INSTRUMENT PANEL	Continue to Step 5	Cables broken or not insulated	Restore continuity or insulation: See E4010 INSTRUMENT PANEL
5	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault present	Search for the fault starting from another symptom'

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