J04 BACK WINDOW WIPER NOT WORKING - Lancia - MUSA - eLearn

With the key in the ON position, when the lever located on the right of the steering wheel is operated, the rear screen wipers do not work properly.

1	CHECK ON REAR WINDOW WIPER MOTOR SUPPLY	All OK	Problems met	Operation
		Results of the tests
	Check, in order: Motor connection to earth; Motor suply line; Connections with the Body Computer See E3021 REAR WINDOW WASH/WIPE	Continue to Step 2	Connection broken	Restore the connections See E3021 REAR WINDOW WASH/WIPE
2	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment (Examiner Plus or Smart) to the diagnostic socket and check that there are no faults in the Body Computer	Continue to Step 3	Body Computer faulty	Continue according to the instructions for the diagnostic equipment
3	CHECK ON REARSCREEN WIPER MOTOR	All OK	Problems met	Operation
	Check that the rearscreen wiper motor is working properly	Continue to Step 4	Rearscreen wiper motor faulty	Replace the rearscreen wiper motor Op. 5050C42
4	CHECK ON STEERING COLUMN SWITCH UNIT	All OK	Problems met	Operation
	Check that the steering column switch unit is working properly, in particular the contacts with the rearscreen wiper motor.	Continue to Step 5	Faulty steering column switch unit	Replace the steering column switch unit Op. 5550A12
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 Search for the fault starting from another symptom'