Headlamp (HI) Circuit

HEADLAMP (HI) CIRCUIT





Component Function Check
1.CHECK HEADLAMP (HI) OPERATION
CONSULT-III 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.






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




Diagnosis Procedure
1.CHECK HEADLAMP (HI) OUTPUT VOLTAGE
CONSULT-III 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.