Headlamp Washer Circuit

HEADLAMP WASHER CIRCUIT

Component Function Check


1. CHECK HEADLAMP WASHER OPERATION

CONSULT ACTIVE TEST
1.Select "HEAD LAMP WASHER" of IPDM E/R active test item.
2.With operating the test item, check headlamp operation.
On:Headlamp washer ON operation


Off:Stop the headlamp washer.
Is headlamp washer operation normally?
YES- Headlamp washer circuit is normal.
NO- Refer to "Diagnosis Procedure" .


Diagnosis Procedure


1. CHECK HEADLAMP WASHER FUSIBLE LINK

1.Turn ignition switch OFF.
2.Check that the following fusible link is not fusing.





Is the inspection result normal?
YES- GO TO 2.
NO- Replace the fusible link after repairing the applicable circuit.

2. CHECK HEADLAMP WASHER RELAY POWER SUPPLY

1.Remove headlamp washer relay.
2.Check voltage between headlamp washer relay harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace harness.

3. CHECK HEADLAMP WASHER RELAY

Check headlamp washer relay. Refer to "Component Inspection" .
Is the headlamp washer relay normal?
YES- GO TO 4.
NO- Replace headlamp washer relay.

4. CHECK HEADLAMP WASHER RELAY CONTROL SIGNAL

CONSULT ACTIVE TEST
1.Turn ignition switch OFF.
2.Install headlamp washer relay.
3.Turn ignition switch ON.
4.Select "HEAD LAMP WASHER" of IPDM E/R active test item.
5.With operating the test item, check voltage between IPDM E/R harness connector and ground.





Is the inspection result normal?
YES- GO TO 7.
Fixed at 0 V - GO TO 5.
Fixed at 12 V-Replace IPDM E/R.

5. CHECK HEADLAMP WASHER RELAY CONTROL SIGNAL OPEN CIRCUIT

1.Turn ignition switch OFF.
2.Remove headlamp washer relay.
3.Disconnect IPDM E/R harness connector.
4.Check continuity between IPDM E/R harness connector and headlamp washer relay harness connector.





Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace harness.

6. CHECK HEADLAMP WASHER RELAY CONTROL SIGNAL SHORT CIRCUIT

Check continuity between IPDM E/R harness connector and ground.





Is the inspection result normal?
YES- Replace IPDM E/R.
NO- Repair or replace harness.

7. CHECK HEADLAMP WASHER PUMP OPEN CIRCUIT

1.Turn ignition switch OFF.
2.Remove headlamp washer relay.
3.Disconnect headlamp washer pump connector.
4.Check continuity between headlamp washer relay harness connector and headlamp washer pump harness connector.





Is the inspection result normal?
YES- GO TO 8.
NO- Repair or replace harness.

8. CHECK HEADLAMP WASHER PUMP (GND) OPEN CIRCUIT

Check continuity headlamp washer pump harness connector and ground.





Is the inspection result normal?
YES- Replace headlamp washer pump.
NO- Repair or replace harness.


Component Inspection


1. CHECK HEADLAMP WASHER RELAY

1.Turn ignition switch OFF.
2.Remove headlamp washer relay.
3.Apply battery voltage to headlamp washer relay between terminals 1 and 2.
4.Check continuity of headlamp washer relay.





Is the inspection result normal?
YES- Headlamp washer relay is normal.
NO- Replace headlamp washer relay.