		Test results
0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
	Press the hazard warning lights switch in the control panel and check whether the direction indicators/hazard warning lights are activated and deactivated	Move on to Step 4	Lights faulty with activation of hazard warning lights as well	Move on to Step 1
1	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Connect the Examiner to the diagnostic socket. Check: that there are no faults in the body computer the operation of the lights through active diagnosis.	Move on to Step 4	Faults in the Body Computer	Continue as instructed by the diagnostic equipment
			Some of the bulbs do not manage to come on	Move on to Step 3
			None of the bulbs manage to come on	Move on to Step 2
2	DIRECTION INDICATORS ELECTRICAL CIRCUIT CHECK	All OK	Problems encountered	Operation
	Check the condition of the individual bulbs and the bulb holder Check the following, in order: connections between the steering wheel interface and Body Computer; connections between the Body Computer and bulbs; See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS	Move on to Step 3	Component defective	Replace the defective component (in the case of a fuse, find out what caused it to blow)
		Move on to Step 3	Connections interrupted	Repair the connections See See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS
3	INDIVIDUAL LIGHTS CHECK	All OK	Problems encountered	Operation
	Check the condition of the defective individual bulbs and the bulb holder	Move on to Step 4	Front bulb damaged	Replace the bulb Op. 5550C54 BULB FOR ONE SIDE REPEATER UNIT LH OR RH - R.R
			Rear bulb damaged	Replace the bulb Op. 5550C54 BULB FOR ONE SIDE REPEATER UNIT LH OR RH - R.R
			Side repeater damaged	Replace the side repeater. Op. 5550C22 L/H OR R/H SIDE REPEATER (ONE) - R+R
			Rear bulb holder assembly faulty	Replace the bulb holder assembly. Op. 5540A44 REAR LIGHT CLUSTER (ONE), LEFT OR RIGHT - R.R.
4	STEERING WHEEL INTERFACE CHECK	All OK	Problems encountered	Operation
	Check that the steering wheel interface is working properly and that the direction indicators switch is working properly	Move on to Step 5	Steering wheel interface not working properly	Replace the steering wheel interface Op. 5550A10 STALK UNIT ASSEMBLY - R+R
5	BODY COMPUTER POWER SUPPLY CHECK	All OK	Problems encountered	Operation
	Check that the power supply for the Body Computer is correct	Move on to Step 6	Power supply not correct	Restore correct power supply See See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS
6	CORRECT OPERATION CHECK	All OK	Problems encountered	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Replace the body computer Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.

When the lever on the steering column switch unit is raised or lowered (only one of the two cases) with the ignition ON, the direction indicators do not work

Only carry out the checks described on the side where the problem occurs