Front Fog Lamp Circuit

FRONT FOG LAMP CIRCUIT

Component Function Check


1. CHECK FRONT FOG LAMP OPERATION

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

Fog: Front fog lamp ON
Off: Front fog lamp OFF

Is the measurement normal?
YES- Front fog lamp circuit is normal.
NO- .


Diagnosis Procedure


1. CHECK FRONT FOG LAMP FUSE

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





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

2. CHECK FRONT FOG LAMP SHORT CIRCUIT

1.Disconnect front fog connector and 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.

3. CHECK FRONT FOG LAMP BULB

Check the applicable lamp bulb.
Is the inspection result normal?
YES- GO TO 4.
NO- Replace bulb.

4. CHECK FRONT FOG LAMP OUTPUT VOLTAGE

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





Is the inspection result normal?
YES- GO TO 5.
NO- Replace IPDM E/R.

5. CHECK FRONT FOG LAMP OPEN CIRCUIT

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





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

6. CHECK FRONT FOG LAMP GROUND CIRCUIT OPEN CIRCUIT

Check continuity between front fog lamp harness connector and ground.





Is the inspection result normal?
YES- Intermittent Incident.
NO- Repair or replace harness.