Engine coolant temperature gauge not working

Make: Fiat
Model: Stilo Factory Service Manual
Year: 2001–2007
Section: Instrument panel › Engine coolant temperature gauge not working

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Fault diagnosisEngine coolant temperature gauge not working

ENGINE COOLANT TEMPERATURE GAUGE NOT WORKING

With the ignition ON, the engine coolant temperature gauge in the instrument panel is not working;

the engine temperature signal and the engine temperature sensor failure signal is made available by the 'engine management node' at the C-CAN network; the 'body computer node' makes the message available through the gateway at the B-CAN network and then at the instrument panel.

0	PRELIMINARY CHECK	All OK	Problems met	Operation
		Results of the tests
	Check that with the engine started up: That the engine temperature sensor failure message is not present and that the engine management warning light is not on	Continue to Step 2	Presence of failure messages and/or warning light on	Continue to Step 1
1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the Examiner diagnostic equipment to the diagnostic socket and check: that there are no faults at the engine management node	Continue to Step 2	Anomalies present	Continue following the instructions for the diagnostic equipment
2	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the Examiner diagnostic equipment to the diagnostic socket and check at the instrument panel node: the operation of the indicator through active diagnosis.	Continue to Step 3	Indicator not working	Replace instrument panel Op. 5560B11
3	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
1.2 16v 1.6 16v 1.8 16v 2.4 20v	Check that the fault is no longer present	End of diagnosis	Fault persists	Replace the engine management control unit Op. 1056B82
1.9 JTD 8v	Check that the fault is no longer present		Check that the fault is no longer present	Replace the engine management control unit Op. 1060A80 Search for the fault starting from another symptom'

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Parts & tools for this job For 2001 Fiat Stilo

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