323000792 - K025 ENGINE COOLANT TEMPERATURE GAUGE NOT WORKING

With the ignition on, the engine coolant temperature gauge in the instrument panel is not working;N.B: 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 3.	Warning light on.	Move on to Step 1.
1	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Connect the Examiner 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	ENGINE TEMPERATURE SENSOR CHECK	All OK	Problems encountered	Operation
	Check that the engine temperature sensor is working properly	Move on to Step 3.	Sensor defective.	Replace the temperature sensor.    Op. 1056B50 ENGINE COOLANT TEMPERATURE SENSOR - R + R
3	CHECK FOR ENGINE CONTROL FAULTS	All OK	Problems encountered	Operation
	The panel indicates errors not detected by the engine control unit.	Move on to Step 4.	Errors not identified by the engine management control unit.	Proceed as instructed.    See K101 FUEL TEMPERATURE AND WATER IN FUEL FILTER SENSOR
4	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Keeping the Examiner equipment connected to the diagnostic socket, check the operation of the pointer in active diagnosis.	Move on to Step 5.	Pointer does not move	Replace the instrument panel.    Op. 5560B10 CONTROL PANEL - R+R
5	ELECTRICAL CIRCUIT CHECK	All OK	Problems encountered	Operation
	Check the continuity/insulation of the connection between the engine coolant temperature sensor and the engine management control unit	Move on to Step 6.	Cables broken/not insulated.	Restore cable continuity/insulation
6	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.