K157 SEAT BELT NOT FASTENED WARNING LIGHT NOT WORKING - Fiat - IDEA - eLearn

2398870 - K157 SEAT BELT NOT FASTENED WARNING LIGHT NOT WORKING

The Air Bag Node sends the message via the B-CAN network to the Instrument Panel Node.

1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
		Results of the tests
	Using the Examiner check, in the Instrument Panel Node ambient, that there are no errors and the following parameters are present	Continue to Step 4	System fault.	Continue to Step 2
			Presence of faults in the CAN	Continue to Step 9
			There are errors	Continue according to the instructions for the diagnostic equipment
2	ELECTRIC POWER SUPPLY CHECK	All OK	Problems met	Operation
	Positive and/or earth electrical power supply faulty	Replace the component involved (if a fuse is involved, search for the cause of the problem) End of diagnosis	Electrical connections not working	Restore the correct operation of the damaged wiring
3	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Using the Examiner check, in the Instrument Panel Node ambient, that there are no errors and the following parameters are present	Continue to Step 4	Fault persists	Replace the instrument panel Op. 5560B11
4	CHECK WITH ACTIVE DIAGNOSIS	All OK	Problems met	Operation
	With the Examiner in the Instrument Panel Node ambient, check, in active diagnosis, that the seatbelts unfastened warning light is correctly activated	Continue to Step 5	The seatbelts unfastened warning light does not flash	Replace the instrument panel Op. 5060B11
5	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Keeping the diagnostic equipment connected, check for the following at the Air Bag Node: System/component faults Faults on the CAN network(s)	Continue to Step 8	System/components fault	Continue to Step 6
			Presence of fault in the CAN	Continue to Step 9
			There are errors	Continue as instructed by the tester
6	ELECTRICAL POWER SUPPLY CHECK	All OK	Problems met	Operation
	Check that the node electrical power supply is correct. Check the wiring between the Body Computer and the Air Bag Node, in particular that each individual pin is correctly connected	Continue to Step 7	Positive and/or earth electrical power supply faulty	Replace the component involved (if a fuse is involved, search for the cause of the problem)
		Continue to Step 7	Electrical connections not working	Restore the correct operation of the damaged wiring
7	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Using the Examiner check, in the Air Bag Node ambient, that there are no errors and the following parameters are present	Continue to Step 5	Fault persists	Replace Air Bag Node Op. 5580C14
8	CHECK WITH ACTIVE DIAGNOSIS	All OK	Problems met	Operation
	With the Examiner in the Air Bag Node ambient, check, in active diagnosis, that the seat belt unfastened warning light is correctly activated	Continue to Step 2	The seat belts unfastened warning light does not flash	Replace the Air Bag Node Op. 5580C14
9	ELECTRICAL POWER SUPPLY CHECK	All OK	Problems met	Operation
	Check that the supply / electrical connections of the node(s). Check the network wiring between Air Bag, Body Computer and Instrument Panel, and in particular that each individual pin is correctly connected on each node	Continue to Step 1	Positive and/or earth electrical power supply faulty	Replace the component involved (if a fuse is involved, search for the cause of the problem)
		Continue to Step 1	Electrical connections not working	Restore the correct operation of the damaged wiring
10	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	The fault persists	Continue to Step 1