Headlamp Low Beam Does Not Illuminate (Both Sides)

With CONSULT-III

1. Select "BCM" on CONSULT-III. Select "HEAD LAMP".
2. Select "DATA MONITOR". Make sure that "HEAD LAMP SW 1" and "HEAD LAMP SW 2" turns ON-OFF linked with operation of lighting switch.

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

   : HEAD LAMP SW 2 ON 

Without CONSULT-III

Refer to "COMBINATION SWITCH INSPECTION ".

OK or NG 

OK: GO TO 2.

NG: Check combination switch (lighting switch). Refer to "COMBINATION SWITCH INSPECTION ".

With CONSULT-III

1. Select "IPDM E/R" on CONSULT-III. Select "ACTIVE TEST".
2. Select "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. Refer to "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.

1. Select "IPDM E/R" on CONSULT-III. Select "DATA MONITOR".
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. Refer to "REMOVAL AND INSTALLATION OF IPDM E/R ".

NG: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".

Inspect 15A fuse [No. 40 (LH) and No. 41 (RH) located in IPDM E/R].

OK or NG 

OK: GO TO 5.

NG: Repair harness.

Inspect inoperative headlamp bulbs.

OK or NG 

OK: GO TO 6.

NG: Replace headlamp bulb. Refer to "BULB REPLACEMENT ".

With CONSULT-III

1. Turn ignition switch OFF.
2. Disconnect headlamp connector.
3. Turn ignition switch ON.
4. Select "IPDM E/R" on CONSULT-III. Select "ACTIVE TEST".
5. Select "LAMPS" on "SELECT TEST ITEM" screen.
6. Touch "LO" screen.
7. When headlamp low beam is operating, check voltage between headlamp harness connector and ground.

Fig 1: Checking Voltage Between Headlamp Harness Connector Terminal 3 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-III

1. Turn ignition switch OFF.
2. Disconnect headlamp connector.
3. Turn ignition switch ON.
4. Start auto active test. Refer to "AUTO ACTIVE TEST ".
5. 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.

1. Turn ignition switch OFF.
2. Check continuity between headlamp harness connector (B) and ground.

Fig 2: Checking Continuity Between Headlamp Connector Terminal 5 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: Check front combination lamp connector for damage or poor connection. Repair as necessary.

NG: Repair harness.

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).

Fig 3: Checking Continuity Between IPDM E/R Connector And Headlamp Connector Terminals

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION OF IPDM E/R ".

NG: Repair harness or connector.