Headlamp (LO) Circuit

HEADLAMP (LO) CIRCUIT

Component Function Check


1. CHECK HEADLAMP (LO) 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 (LO) is turned ON.
Lo: Headlamp (LO) ON


Off: Headlamp (LO) OFF
Is the inspection result normal?
YES- Headlamp (LO) circuit is normal.
NO- Refer to "Diagnosis Procedure" .


Diagnosis Procedure


1. CHECK HEADLAMP (LO) OUTPUT VOLTAGE

CONSULT ACTIVE TEST
1.Turn power switch OFF.
2.Disconnect front combination lamp 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 (LO) 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.
Except for Canada





For Canada





Is the inspection result normal?
YES- Perform the LED headlamp diagnosis. Refer to "Diagnosis Procedure" Led Headlamp.
NO- Repair or replace harness.

3. CHECK HEADLAMP (LO) 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 (LO) SHORT CIRCUIT-1

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





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace harness. And then replace the fuse.

5. CHECK HEADLAMP (LO) SHORT CIRCUIT-2

CONSULT ACTIVE TEST
1.Replace fuse.
2.Connect IPDM E/R connector.
3.Turn power switch ON.
4.Select "EXTERNAL LAMPS" of IPDM E/R active test item.
5.Check that fuse is not fusing when Lo button is operated.
Is the inspection result normal?
YES- GO TO 6.
NO- Replace IPDM E/R.

6. CHECK HEADLAMP (LO) SHORT CIRCUIT-3

1.Turn power switch OFF.
2.Connect front combination lamp connector.
3.Check that headlamp turns ON when lighting switch is in the 2ND position.
Is the inspection result normal?
YES- Refer to "Intermittent Incident" Intermittent Incident.
NO- Replace LED headlamp control module.