K140 FUEL RESERVE WARNING LIGHT ON (WITH HIGHER LEVEL) - Fiat - NUOVA 500 - eLearn

312000672 - K140 FUEL RESERVE WARNING LIGHT ON (WITH HIGHER LEVEL)

The Engine Management Node sends a message via the C-CAN to the Body Computer, which makes it available via the B-CAN, to the Instrument Panel node.

Faults in the C-CAN will turn on the warning lights for the control units that communicate on this network. The "CAN INFORMATION" check is designed for this eventuality

0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
		Test results
	Check that the fuel level gauge reading is not in the reserve condition	Move on to Step 1	Fuel level gauge on reserve	Top up the fuel to the correct level.
1	ACTIVE DIAGNOSIS CHECK	All OK	Problems encountered	Operation
	With the Examiner in the Instrument Panel Node ambient check that the fuel reserve warning light is correctly activated in Active Diagnosis	Move on to Step 2	The reserve warning light does not flash	Replace the Instrument Panel Op. 5560B10 CONTROL PANEL - R+R
2	FUEL LEVEL GAUGE CHECK	All OK	Problems encountered	Operation
	Check the insulation of the wiring to the fuel gauge earth.Check the level gauge is working properly.	Move on to Step 3	1. The wiring is short circuited2. Level gauge defective.	1. Restore the correct insulation.2. Replace the submerged fuel pump assembly Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R
3	CORRECT OPERATION CHECK	All OK	Problems encountered	Operation
	Check that the body computer is working properly.	End of diagnosis	Body Computer defective.	Replace Body Computer Op. 5505A32 BODY COMPUTER - R.R