22 · Diagnostics

Fuel level gauge not working

Make: Fiat
Model: Stilo Factory Service Manual
Year: 2001–2007
Section: Instrument panel › Fuel level gauge not working

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Fault diagnosisFuel level gauge not working

FUEL LEVEL GAUGE NOT WORKING

With the ignition key in the ON position, the fuel gauge indicator is not working properly or it indicates a different level from what is actually in the tank.

the fuel level message is supplied by the 'body computer node' and is made available to the 'instrument panel node' via the B-CAN network; the 'body computer node' also sends the fuel level sensor error message.

0	PRELIMINARY CHECK	All OK	Problems met	Operation
		Results of the tests
	Check that with the engine started up: The level indicator is not at 0 and the fuel reserve warning light is not flashing There are no error messages at the matrix that can be reconfigured	Continue to Step 2	level indicator at zero and warning light flashing	Continue to Step 3
		Continue to Step 2	presence of failure messages	Continue to Step 1
1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment (Examiner or other instruments) to the Body Computer. Check the CAN network information: control units inactive control unit errors control units with errors in CAN line	Continue to Step 2	Presence of faults in the CAN network	Continue following the instructions for the diagnostic equipment
2	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Keeping the diagnostic equipment (Examiner or other instruments) connected to the diagnostic socket, check: that the pointer is working via active diagnosis	Continue to Step 3	The pointer does not move	Replace instrument panel Op. 5560B11
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'

‹ Prev Engine oil level information incorrect Next › Fuel reserve warning light not working

Parts & tools for this job For 2001 Fiat Stilo

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