22 · Diagnostics

Rear courtesy lights not working

Make: Lancia
Model: Thesis Factory Service Manual
Year: 2002–2009
Section: Lights › Rear courtesy lights not working

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Fault diagnosisRear courtesy lights not working

REAR COURTESY LIGHTS NOT WORKING

The courtesy lights or the rear right/left map reading lights are not working under any circumstances.

The engagement of the autoclose is signalled by a warning sound.

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
0	PRELIMINARY CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that: The boot courtesy light comes on The courtesy lights come on when the doors are opened	Move on to Step	The lights do not come on	Move on to Step
1	ELECTRICAL SYSTEM CHECK.	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the condition of the courtesy light fuse in the Dashboard Junction Unit	Move on to Step	Protective fuse blown	Replace the protective fuse and check for any short circuits to earth (Wiring Diagram ) E2510 COURTESY LIGHTS
2	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Connect the Examiner diagnostic equipment to the diagnostic connector and check the following at the Body Computer Node: In active diagnosis ambient The operation of the courtesy lights	Move on to Step	The lights do not come on	Move on to Step
3	COMPONENT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Remove the rear courtesy light and check: The condition of the bulbs The condition of the courtesy light inner races	Move on to Step	1. Bulbs burnt out	1. Replace the bulbs checking the power
		Move on to Step	2. Inner races broken	2. Replace the rear courtesy light See in Op. 7040E16 rear courtesy light - r+r
4	ELECTRICAL SYSTEM CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the condition of the wiring between: Junction unit and rear courtesy light (Supply lead) Rear courtesy light and Body Computer Node	Move on to Step	Connections interrupted	Restore the electrical connection (Wiring Diagram ) E2510 COURTESY LIGHTS
5	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present		The fault persists	Replace the Body Computer Node See in Op. 5505A32 BODY COMPUTER - R.R.

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Parts & tools for this job For 2002 Lancia Thesis

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