23 · Diagnostics

Engine oil temperature warning light not working

Make: Alfa Romeo
Model: Brera and Spider Factory Service Manual
Year: 2005–2010
Section: Instrument panel › Engine oil temperature warning light not working

Fault diagnosisEngine oil temperature warning light not working

ENGINE OIL TEMPERATURE WARNING LIGHT NOT WORKING

With the ignition ON, the engine oil temperature warning light in the additional instrument panel is not working;

the engine oil temperature faulty signal is made available to the instrument panel and, via a serial line, to the gauge.

1	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Keeping the Examiner connected to the diagnostic socket, check the operation of the warning light on the instrument panel by means of active diagnosis	Move on to Step 4	1.The warning light does not come on for the serial line with the NQS interrupted	1.Renew serial line
			2.Instrument panel defective	2.Restore power supply
			3.Instrument power supply interrupted	3.Replace additional instrument panel Op. 5560C51 COMBINED ANALOGUE CONTROL PANEL - R+R OR REPLACE
			4.Instrument defective	4.Replace gauge Op. 5560C51 COMBINED ANALOGUE CONTROL PANEL - R+R OR REPLACE
2	ELECTRICAL CIRCUIT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the continuity/insulation of the lead between oil temperature sensor and the instrument panel See E4010 INSTRUMENT PANEL	Move on to Step 5	1.Cable interrupted/not insulated	1. Restore cable continuity/insulation
		Move on to Step 5	2.Oil temperature sensor defective	2.Replace oil temperature sensor
3	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present	End of diagnosis	The fault persists	Replace Body Computer Op. 5505A32 BODY COMPUTER - R.R

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