J03 SCREEN WASHERS NOT WORKING - Lancia - THESIS - eLearn

72538 - J03 SCREEN WASHERS NOT WORKING

With the ignition on, when the windscreen washer control is operated it does not work and the windscreen is not washed

the windscreen wiping and washing functions are managed by a control unit that receives commands from the right stalk lever.

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
0.	PRELIMINARY CHECKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the condition of the windscreen washer circuirt protective fuse (Wiring Diagram ) E3020 WINDSCREEN WASH/WIPE	Move on to Step	Fuse blown	Replace the fuse and search for the cause of the problem (Wiring Diagram ) E3020 WINDSCREEN WASH/WIPE
1.	WINDSCREEN WASHER ELECTRICAL CIRCUIT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the following, in order: the continuity/insulation of the wiring between the dashboard junction unit and the stalk unit windscreen washer control module; the continuity/insulation of the wiring between the stalk unit windscreen washer control module, the windscreen washer control unit and the windscreen washer pump; (Wiring Diagram ) E3020 WINDSCREEN WASH/WIPE	Move on to Step	Connections broken	Repair the connections (Wiring Diagram ) E3020 WINDSCREEN WASH/WIPE
2.	STALK UNIT CONTROL MODULE OPERATION CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the windscreen washer pump at the stalk unit is working properly Continue following the instructions in the test 5550AB Check on windscreen wiper and headlamp washer control operation on steering column switch unit	Move on to Step	Stalk unit control module faulty	Replace the steering column switch unit See in Op. 5550A12 complete stalk unit - r+r for versions with air bag
3.	WINDSCREEN WASHER PUMP OPERATION CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Supply the windscreen washer pump directly from the battery and check that it is working properly.	Move on to Step	Windscreen washer pump faulty	Replace the windscreen washer pump See in Op. 5050B20 windscreen washer electrical pump - r+r
4.	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present		Control unit fault	Replace the windscreen wiper control unit See in Op. 5050B42 Front windscreen wiper MOTOR - R.R.