Diagnosis Procedure
HEADLAMP (HI) CIRCUIT
WITH DAYTIME RUNNING LIGHT SYSTEM : Diagnosis Procedure
1. CHECK HEADLAMP (HI) OUTPUT VOLTAGE
CONSULT ACTIVE TEST
1.Turn power switch OFF.
2.Disconnect headlamp high connector.
3.Turn power 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 power switch OFF.
2.Disconnect IPDM E/R connector.
3.Check continuity between IPDM E/R harness connector and front combination lamp harness connector.
Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace harness.
3. CHECK HEADLAMP (HI) FUSE
1.Turn power 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 (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 fuse. (Replace IPDM E/R if the fuse is fusing again.)
NO- Repair or replace harness. And then replace the fuse.
5. CHECK ILLUMINATION STATUS OF HEADLAMPS
Check illumination status of headlamps.
Which headlamp does not turn ON?
RH- GO TO 6.
LH- GO TO 8.
6. CHECK HEADLAMP HI (RH) GROUND OPEN CIRCUIT-1
1.Remove daytime running light relay.
2.Check continuity between daytime running light relay harness connector and front combination lamp RH
harness connector.
Is the inspection result normal?
YES- GO TO 7.
NO- Repair or replace harness.
7. CHECK HEADLAMP HI (RH) GROUND OPEN CIRCUIT-2
Check continuity between daytime running light relay harness connector and ground.
Is the inspection result normal?
YES- Replace headlamp (HI) bulb. (Bulb socket is abnormal.)
NO- Repair or replace harness.
8. CHECK HEADLAMP HI (LH) GROUND OPEN CIRCUIT
Check continuity between front combination lamp LH harness connector and ground.
Is the inspection result normal?
YES- Replace headlamp (HI) bulb. (Bulb socket is abnormal.)
NO- Repair or replace harness.