323000793 - K026 ENGINE COOLANT OVERHEATING WARNING LIGHT NOT WORKING

With the ignition on, the engine coolant temperature warning light in the instrument panel is not working;the engine temperature signal and the engine failure temperature sensor are made available by the engine management node to the C-CAN; the body computer node makes the message available, via the gateway, at the B-CAN and therefore to the instrument panel.

0	PRELIMINARY CHECK	All OK	Problems encountered	Operation
	Check that the engine management warning light is not on with the engine started.	Move on to Step 2	Warning light on.	Move on to Step 1
1	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Connect the Examiner diagnostic equipment to the diagnostic socket.Check that there are no faults in the Engine Management Node.	Move on to Step 2	Presence of faults.	Continue as instructed by the diagnostic equipment.
2	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Keeping the Examiner diagnostic equipment connected to the diagnostic socket, check the operation of the warning light through active diagnosis.	Move on to Step 3	The warning light does not flash.	Replace the instrument panel    Op. 5560B10 CONTROL PANEL - R+R
3	ELECTRICAL CIRCUIT CHECK	All OK	Problems encountered	Operation
	Check the continuity/insulation of the cable between the engine coolant temperature sensor and the engine management control unit.	Move on to Step 4	Cables broken/not insulated.	Restore cable continuity/insulation
4	CORRECT OPERATION CHECK	All OK	Problems encountered	Operation
	Check that the fault is no longer present.	End of diagnosis.	The fault persists.	Replace Body Computer    Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.