72547 - J10 HEADLAMP WASHERS NOT WORKING

The headlamp washers are activated at the same time as the windscreen washer and only with the dipped/main beam headlamps on;

the Body Computer node acquires both the windscreen washer/headlamp washer activation signal and the exterior lights control signal from the steering column switch unit and activates the headlamp washer pump via the relay.

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
0	PRELIMINARY CHECKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the condition of the headlamp washer power circuit protective fuse (Wiring Diagram ) E3022 HEADLAMP WASHER	Move on to Step	Fuse blown	Replace the fuse and search for the cause of the problem (Wiring Diagram ) E3022 HEADLAMP WASHER
1	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Connect the Examiner diagnostic equipment to the diagnostic connector and check the following at the Body Computer Node:in errors ambient that there are no faults in active diagnosis ambient the operation of the headlamp washers	Move on to Step	1. Presence of errors	1. Continue following the instructions in the diagnostic table
			2. Headlamp washers not activated	Move on to Step
2	HEADLAMP WASHER ELECTRICAL CIRCUIT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the ignition ON and the stalk unit lever in the windscreen washer/headlamp washer activated position, check that there is 12 V at the terminal for the cable connecting the stalk unit to the body computer (body computer side) (Wiring Diagram ) E3022 HEADLAMP WASHER		There is no voltage	Move on to Step
3	HEADLAMP WASHER ELECTRICAL CIRCUIT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the continuity/insulation of the wiring between the stalk unit and the body computer; (Wiring Diagram ) E3022 HEADLAMP WASHER	Move on to Step	Lead broken	Repair the connections (Wiring Diagram ) E3022 HEADLAMP WASHER
4	STALK UNIT CONTROL MODULE OPERATION CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the windscreen washer/headlamp washer stalk unit control 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
5	HEADLAMP WASHER PUMP ELECTRICAL CIRCUIT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the condition of the connections and the continuity/insulation of the power circuit for the headlamp washer pump and the condition of the relay feed (Wiring Diagram ) E3022 HEADLAMP WASHER	Move on to Step	1. Wiring/connections faulty	1. Repair the connections (Wiring Diagram ) E3022 HEADLAMP WASHER
			2. Relay faulty	2. Replace the relay
6	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present		Fault persists	Replace the headlamp washer pump    See in Op. 5050B42 Front windscreen wiper MOTOR - R.R.
7	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present		Fault persists	Replace body computer    See in Op. 5505A32 BODY COMPUTER - R.R.