Without Daytime Running Light System Diagnosis Procedure

HEADLAMP (LO) CIRCUIT


WITHOUT DAYTIME RUNNING LIGHT SYSTEM : Diagnosis Procedure

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





Is the measurement value normal?
YES - GO TO 2.
NO - GO TO 3.
2.CHECK HEADLAMP (LO) OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between the IPDM E/R harness connector and the headlamp harness connector.





Does continuity exist?
YES - GO TO 5.
NO - Repair the harnesses or connectors.
3.CHECK HEADLAMP (LO) FUSE
1. Turn the ignition switch OFF.
2. Check that the following fuses are not fusing.





Is the fuse fusing?
YES - GO TO 4.
NO - Replace IPDM E/R.
4.CHECK HEADLAMP (LO) SHORT CIRCUIT
1. Disconnect the IPDM E/R connector.
2. Check continuity between the IPDM E/R harness connector and the ground.





Does continuity exist?
YES - Repair the harnesses or connectors. And then replace the fuse.
NO - Replace the fuse. (Replace IPDM E/R if the fuse is fusing again.)
5.CHECK HEADLAMP (LO) GROUND OPEN CIRCUIT
Check continuity between the headlamp harness connector and the ground.





Does continuity exist?
YES - Replace the headlamp (LO) bulb. (Bulb socket is abnormally.)
NO - Repair the harnesses or connectors.