K137 VEHICLE PROTECTION SYSTEM WARNING LIGHT ON CONSTANTLY - Fiat - GRANDE PUNTO - eLearn

199000858 - K137 VEHICLE PROTECTION SYSTEM WARNING LIGHT ON CONSTANTLY

The Engine Control 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 of the control units that communicate on this network. Verification of the CAN Information is intended to detect this situation

1	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
		Results of the tests
	Connect the Examiner diagnostic instrument and check CAN information for the absence of:- Inactive node/s- Node/s with error/s- Node/s with CAN error/s	Move on to Step 6	1. Impossible to communicate with the Body Computer2. Instrument Panel Node inactive and/or with error3. Engine Control Node inactive and/or incorrect4. Fault on CAN network	1. Move on to Step 22. Move on to Step 53. Move on to Step 94. Move on to Step 13
2	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Use an Examiner to asses the possibility of connection to the Body Computer Node, the lack of errors and the presence of parameters.	Move on to Step 1	1. Impossible to connect to the Body Computer control unit.2. Presence of errors	1. Move on to Step 32. Continue as described by the diagnostic equipment
3	ELECTRICAL POWER SUPPLY CHECK	All OK	Problems encountered	Operation
	Check that the power supply to the Body Computer Node and the wiring between the nodes are correct . Check in particular that each individual pin is correctly connected	Move on to Step 4	1. Fault in positive electrical supply and/or earth2. Electrical connections not operational	1. Replace defective component (in the case of a fuse, find out what caused it to blow).2. Restore the damaged wiring to correct operation.
4	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Use an Examiner to check the possibility of connection to the Body Computer Node	Move on to Step 5	Impossible to connect to the Body Computer.	Replace Body Computer Op. 5505A32 BODY COMPUTER - R.R
5	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Using an Examiner check, in Instrument Panel mode, that there are no errors and that the parameters are present.	Move on to Step 6	1. System fault2. Fault on CAN network3. Presence of errors	1. Move on to Step 62. Move on to Step 133. Continue as described by the diagnostic equipment
6	ELECTRICAL POWER SUPPLY CHECK	All OK	Problems encountered	Operation
	Check the electricity supply to the node is correct. Check the wiring between the Body Computer and the Instrument Panel. In particular, check that each individual pin is properly connected	Move on to Step 7	1. Fault in positive electrical supply and/or earth2. Electrical connections not operational	1. Replace defective component (in the case of a fuse, find out what caused it to blow).2. Restore the damaged wiring to correct operation.
7	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Using an Examiner check, in Instrument Panel mode, that there are no errors and that the parameters are present.	Move on to Step 8	Fault persists	Replace the Instrument Panel Op. 5560B10 CONTROL PANEL - R+R
8	ACTIVE DIAGNOSIS CHECK	All OK	Problems encountered	Operation
	With the Examiner in Instrument Panel Node mode, check that the vehicle protection warning light is correctly activated in Active Diagnosis.	Move on to Step 9	The warning light does not flash	Replace the Instrument Panel Op. 5560B10 CONTROL PANEL - R+R
9	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Keeping the diagnostic instrument connected, check the Engine Management Node for the absence of:- System/component faults- Faults in the CAN network/s	Move on to Step 12	1. System/components faulty2. Fault on CAN network3. Presence of errors	1. Move on to Step 102. Move on to Step 133. Continue following the instructions for the diagnostic equipment
10	ELECTRICAL POWER SUPPLY CHECK	All OK	Problems encountered	Operation
	Check the electricity supply to the node is correct. Check the wiring between the Body Computer and the NCM. In particular, check that each individual pin is properly connected	Move on to Step 11	1. Fault in positive electrical supply and/or earth2. Electrical connections not operational	1. Replace defective component (in the case of a fuse, find out what caused it to blow).2. Restore the damaged wiring to correct operation.
11	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	For the 1.2 8v, 1.4 8v;Using an Examiner check, in Engine Management Node mode, that there are no errors and that the parameters are present.	Move on to Step 12	Fault persists	Replace the Engine Management Control Unit Op. 1056B82 INJECTION/IGNITION SYSTEM E.C.U. (ONE) - R + R
11	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	For the 1.3 JTD 16v 75 CV, 1.3 JTD 16v 90 CV, 1.9 JTD 8v;Using an Examiner check, in Engine Management Node mode, that there are no errors and that the parameters are present.	Move on to Step 13	Fault persists	Replace the Engine Management Control Unit Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R
12	ACTIVE DIAGNOSIS CHECK	All OK	Problems encountered	Operation
	For the 1.2 8v, 1.4 8v;With the Examiner in Engine Control Node mode, check that the vehicle protection warning light is correctly activated in Active Diagnosis.	Move on to Step 13	The warning light does not flash	Replace the Engine Management Control Unit Op. 1056B82 INJECTION/IGNITION SYSTEM E.C.U. (ONE) - R + R
12	ACTIVE DIAGNOSIS CHECK	All OK	Problems encountered	Operation
	For the 1.3 JTD 16v 75 CV, 1.3 JTD 16v 90 CV, 1.9 JTD 8v;With the Examiner in Engine Control Node mode, check that the vehicle protection warning light is correctly activated in Active Diagnosis.	Move on to Step 13	The warning light does not flash	Replace the Engine Management Control Unit Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R
13	ELECTRICAL POWER SUPPLY CHECK	All OK	Problems encountered	Operation
	Check the node power supply/electrical connections are correct. Check the (network) wiring between Engine Management, Body Computer and Instrument Panel. Check, in particular, that each individual pin is correctly connected to each node.	Move on to Step 14	1. Fault in positive electrical supply and/or earth2. Electrical connections not operational	1. Replace defective component (in the case of a fuse, find out what caused it to blow).2. Restore the damaged wiring to correct operation.
14	CHECK ON CORRECT OPERATION	All OK	Problems encountered	Operation
	Check that the fault is no longer present	End of diagnosis	The fault persists	Contact technical service for further information on the problem