Headlamp Low Beam Does Not Illuminate (Both Sides)

HEADLAMP (FOR USA)


Headlamp Low Beam Does Not Illuminate (Both Sides)

1.CHECK COMBINATION SWITCH INPUT SIGNAL
With CONSULT-III
1. Select "BCM" on CONSULT-III. Select "HEAD LAMP" on "SELECT TEST ITEM" screen.
2. Select "DATA MONITOR" on "SELECT DIAG MODE" screen. Make sure that "HEAD LAMP SW 1" and "HEAD LAMP SW 2" turns ON-OFF linked with operation of lighting switch.






Without CONSULT-III
Combination Switch Inspection .
OK or NG
OK - GO TO 2.
NG - Check combination switch (lighting switch). Combination Switch Inspection .
2.CHECK HEADLAMP ACTIVE TEST
With CONSULT-III
1. Select "IPDM E/R" on CONSULT-III. Select "ACTIVE TEST" on "SELECT DIAG MODE" screen.
2. Select "EXTERNAL LAMPS" on "SELECT TEST ITEM" screen.
3. Touch "LO" screen.
4. Make sure headlamp low beam operates.

Headlamp low beam should operate.

Without CONSULT-III
1. Start auto active test. Auto Active Test .
2. Make sure headlamp low beam operates.

Headlamp low beam should operate.

OK or NG
OK - GO TO 3.
NG - GO TO 4.
3.CHECK IPDM E/R
1. Select "IPDM E/R" on CONSULT-III. Select "DATA MONITOR" on "SELECT DIAG MODE" screen.
2. Make sure "HL LO REQ" turns ON when lighting switch is in 2ND position.

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.HEADLAMP LOW BEAM FUSE INSPECTION
Inspect 15A fuse No. 40 (LH) and fuse No. 41 (RH).
OK or NG
OK - GO TO 5.
NG - Repair harness.
5.BULB INSPECTION
Inspect inoperative headlamp bulbs.
OK or NG
OK - GO TO 6.
NG - Replace headlamp bulb. Service and Repair .
6.CHECK HEADLAMP INPUT SIGNAL
With CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect headlamp connector.
3. Select "IPDM E/R" on CONSULT-III. Select "ACTIVE TEST" on "SELECT DIAG MODE" screen.
4. Select "EXTERNAL LAMPS" on "SELECT TEST ITEM" screen.
5. Touch "LO" screen.





6. When headlamp low beam is operating, check voltage between headlamp harness connector and ground.





Without CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect headlamp connector.
3. Start auto active test. Auto Active Test .
4. When headlamp low beam is operating, check voltage between headlamp harness connector and ground.





OK or NG
OK - GO TO 7.
NG - GO TO 8.
7.CHECK HEADLAMP GROUND CIRCUIT
1. Turn ignition switch OFF.





2. Check continuity between headlamp harness connector (B) and ground.





OK or NG
OK - Check front combination lamp connector for damage or poor connection. Repair as necessary.
NG - Repair harness.
8.CHECK HEADLAMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.





3. Check continuity between IPDM E/R harness connector (A) and headlamp harness connector (B).





OK or NG
OK - Replace IPDM E/R. Inspection with CONSULT-III (Self-Diagnosis) Service and Repair .
NG - Repair harness or connector.