I12 TURN SIGNALS RH OR LH SIDE NOT WORKING - Lancia - MUSA - eLearn

184000448 - I12 TURN SIGNALS RH OR LH SIDE NOT WORKING

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

Carry out the checks described on only one side where the fault occurs

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Press the hazard warning lights switch in the control panel and check that the direction indicators/hazard warning lights are activated and deactivated	Continue to Step 4	Lights faulty even when the hazard warning lights are activated	Continue to Step 1
1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the Examiner to the diagnostic socket Check: that there are no faults in the Body Computer the operation of the lights in active diagnosis.	Continue to Step 4	the operation of the lights in active diagnosis.	Continue according to the instructions for the diagnostic equipment
			Some of the bulbs do not come on	Continue to Step 3
			None of the bulbs manages to come on	Continue to Step 2
2	DIRECTION INDICATORS ELECTRICAL CIRCUIT CHECK	All OK	Problems met	Operation
	Check the condition of the individual bulbs and complete bulb holder assembly Check, in order: connections between steering column switch unit and Body Computer; connections between Body Computer and bulbs; bulb earth See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS	Continue to Step 3	Defective component	Replace the component involved (if a fuse is involved, search for the cause of the problem)
		Continue to Step 3	Connections broken	Restore the connections See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS
3	CHECK ON INDIVIDUAL LIGHTS	All OK	Problems met	Operation
	Check the condition of the individual defective bulbs and the bulb holder assembly	Continue to Step 4	Front bulb damaged	Replace the bulb Op. 5550C18
			Damaged rear bulb	Replace the bulb Op. 5550C26
			Side repeater damaged	Replace the side repeater Op. 5550C22
			Rear bulb holder assembly faulty	Replace the bulb holder assembly Op. 5540A44
			Front left bulb holder assembly faulty	Replace the bulb holder assembly Op. 5540B78
			Front right bulb holder assembly faulty	Replace the bulb holder assembly Op. 5540B79
4	CHECK ON STEERING COLUMN SWITCH UNIT	All OK	Problems met	Operation
	Check that the steering column switch unit is working properly and check that the direction indicators switch is working properly	Continue to Step 5	Stalk unit not working properly	Replace the stalk unit Op. 5550C18
5	CHECK ON BODY COMPUTER SUPPLY	All OK	Problems met	Operation
	Check that the Body Computer is supplied correctly	Continue to Step 6	Incorrect supply	Restore the correct supply See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS
6	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Replace the Body Computer Op. 5505A32