Headlamp (HI) Circuit

HEADLAMP (HI) CIRCUIT

Component Function Check


1. CHECK HEADLAMP (HI) OPERATION

CONSULT ACTIVE TEST
1.Select "EXTERNAL LAMPS" of IPDM E/R active test item.
2.With operating the test items, check that the headlamp (HI) is turned ON.

Hi: Headlamp (HI) ON
Off: Headlamp (HI) OFF

NOTE:
ON/OFF is repeated 1 second each.
Is the inspection result normal?
YES- Headlamp (HI) circuit is normal.
NO- .


Diagnosis Procedure

1. CHECK HEADLAMP (HI) OUTPUT VOLTAGE

CONSULT ACTIVE TEST
1.Turn ignition switch OFF.
2.Disconnect headlamp connector.
3.Turn ignition switch ON.
4.Select "EXTERNAL LAMPS" of IPDM E/R active test item.
5.With operating the test items, check voltage between IPDM E/R harness connector and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- GO TO 3.

2. CHECK HEADLAMP (HI) OPEN CIRCUIT

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





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

3. CHECK HEADLAMP (HI) FUSE

1.Turn ignition switch OFF.
2.Check that the following fuses are not fusing.





Is the inspection result normal?
YES- Replace IPDM E/R.
NO- GO TO 4.

4. CHECK HEADLAMP HIGH (HI) SHORT CIRCUIT

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





Is the inspection result normal?
YES- Replace the fuse. (Replace IPDM E/R if the fuse is fusing again.)
NO- Repair or replace harness. And then replace the fuse.