167540 - I04 SIDE LIGHTS / NO. PLATE LIGHT AND DIPPED HEADLAMPS NOT WORKING IN AUTO MODE

The side / no. plate lights and dipped headlamps are not working with the exterior lights switch selector (C.L.E.) in the AUTO position

the side / no. plate lights and dipped headlamps come on directly throught a signal sent by the Body Computer Node; with the C.L.E. selector in the AUTO position, the control to come on is managed completely automatically via the dusk sensor; the sensitivity of the dusk sensor can be adjusted by means of a special control located near the C.L.E.; this signal is supplied to the Connect which makes it available to the Body Computer Node via the B-CAN. If there is a fault with the dusk sensor and the C.L.E. in AUTO mode the Body Computer Node switches on the Side / No. Plate lights and the Dipped Headlamps

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
0	PRELIMINARY CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the lights come on when the switch is in the park position	Move on to Step	The lights do not come on or do not come on correctly	Move on to Step
1	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Connect the Examiner diagnostic equipment to the diagnostic socket and check the following at the Body Computer Node: that there are no faults	Move on to Step	presence of faults.	Continue following the instructions in the diagnostic table
2	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Keeping the Examiner diagnostic equipment connected to the diagnostic socket, check the following at the CONNECT: that there are no faults the plausibility of the dusk sensor sensitivity setting parameter	Move on to Step	1. presence of faults.	1. Continue following the instructions in the diagnostic table
			2. Parameter not plausible	Move on to Step
3	EXTERIOR LIGHTS CONTROL CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the operation of the selector in the AUTO position and the operation of the dusk sensor sensitivity setting adjustment (see test 5540AA)    Continue following the instructions in the test 5540AA Exterior lights control operational check (C.L.E.)	Move on to Step	1. Selector not working.	1. Replace the exterior lights control    See in Op. 5540A20 Exterior lights SWITCH PANEL and instrument panel light dimmer - R.R.
			2. Sensitivity adjuster not working	2. Replace the exterior lights control    See in Op. 5540A20 Exterior lights SWITCH PANEL and instrument panel light dimmer - R.R.
4	EXTERIOR LIGHTS ELECTRICAL CIRCUIT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the continuity of the connections between: exterior lights control and body computer (side and no. plate lights (Wiring Diagram ) E2010 SIDE LIGHTS/NUMBER PLATE LIGHT dashboard control unit exterior lights control and body computer (parking lights) (Wiring Diagram ) E2010 SIDE LIGHTS/NUMBER PLATE LIGHT dusk sensor sensitivity setting selector and CONNECT	Move on to Step	1. Connections interrupted	1. Restore the connections (Wiring Diagram ) E2010 SIDE LIGHTS/NUMBER PLATE LIGHT
			2. dashboard control unit interrupted internally	2. Replace dashboard control unit    See in Op. 5505A10 Junction UNIT - R.R.
5	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present