Headlamp Low Beam Does Not Illuminate (Both Sides)

HEADLAMP (FOR USA) - XENON TYPE -


Headlamp Low Beam Does Not Illuminate (Both Sides)

1.CHECK COMBINATION SWITCH INPUT SIGNAL
CONSULT-III DATA MONITOR
1. Select "HEAD LAMP SW 1" and "HEAD LAMP SW 2" of BCM (HEAD LAMP) data monitor item.
2. With operating the lighting switch, check the monitor status.

When lighting switch is 2ND position : HEAD LAMP SW 1 ON
When lighting switch is 2ND position : HEAD LAMP SW 2 ON

CHECK THE COMBINATION SWITCH
Combination Switch Inspection.
OK or NG
OK - GO TO 2.
NG - Check combination switch (lighting switch). Combination Switch Inspection.
2.HEADLAMP ACTIVE TEST
CONSULT-III ACTIVE TEST
1. Select "LAMPS" of IPDM E/R active test item.
2. With operating the test item, check the headlamp low beam operation.

LO: Headlamp low beam ON
Off: Headlamp low beam OFF

IPDM E/R AUTO ACTIVE TEST
1. Activate auto active test. Auto Active Test.
2. Make sure headlamp low beam operation.

Headlamp low beam should operate.

OK or NG
OK - GO TO 3.
NG - GO TO 4.
3.CHECK IPDM E/R
CONSULT-III DATA MONITOR
1. Select "HL LO REQ" of IPDM E/R data monitor item.
2. With operating the lighting switch is in 2ND position, check the monitor status.

When lighting switch is 2ND position : HL LO REQ ON

OK or NG
OK - Replace IPDM E/R. Service and Repair.
NG - Replace BCM. Service and Repair.
4.CHECK HEADLAMP INPUT SIGNAL
CONSULT-III ACTIVE TEST
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH and LH connector.
3. Select "LAMPS" of IPDM E/R active test item.
4. Touch "LO" screen.





5. With operating the test item, check voltage between front combination lamp (RH and LH) harness connector and ground.





IPDM E/R AUTO ACTIVE TEST
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH and LH connector.
3. Activate auto active test. Auto Active Test.
4. When headlamp low beam is operating, check voltage between front combination lamp (RH and LH) harness connector and ground.





OK or NG
OK - GO TO 5.
NG - GO TO 6.
5.CHECK HEADLAMP GROUND
1. Turn ignition switch OFF.





2. Check continuity between front combination lamp (RH and LH) harness connector and ground.





OK or NG
OK - Check headlamp harness and connectors, ballasts (HID control unit), and xenon bulbs. Xenon Headlamp Trouble Diagnosis Adjustments, "Xenon
Headlamp Trouble Diagnosis".
NG - Repair harness or connector.
6.CHECK CIRCUIT BETWEEN IPDM E/R AND FRONT COMBINATION LAMP
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.





3. Check continuity between IPDM E/R harness connector (A) and front combination lamp (RH and LH) harness connector (B).





4. Check continuity between IPDM E/R harness connector (A) and ground.





OK or NG
OK - Replace IPDM E/R. Service and Repair.
NG - Repair harness or connector.