Headlamp Low Beam Does Not Illuminate (Both Sides)

With CONSULT-II

Select "BCM" on CONSULT-II. With "HEAD LAMP" data monitor, make sure "HEAD LAMP SW 1" and "HEAD LAMP SW 2" turns ON-OFF linked with operation of lighting switch.

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

position: HEAD LAMP SW 2 ON 

Without CONSULT-II

Refer to "COMBINATION SWITCH INSPECTION ".

OK or NG 

1. OK: GO TO 2.
2. NG: Check combination switch (lighting switch). Refer to "COMBINATION SWITCH INSPECTION ".
   Fig 1: Locating Data Monitor Display Screen

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

With CONSULT-II

1. Select "IPDM E/R" on CONSULT-II, and select "ACTIVE TEST" on "SELECT DIAG MODE" screen.
2. Select "LAMPS" on "SELECT TEST" ITEM screen.
3. Touch "LO" screen.
4. Make sure headlamp low beam operates.

   Headlamp low beam should operate. 

With out CONSULT-II

1. Start auto active test. Refer to "AUTO ACTIVE TEST ".
2. Make sure headlamp low beam operates.

   Headlamp low beam should operate. 

   Fig 2: Locating Active Test Display Screen

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

OK or NG 

1. OK: GO TO 3.
2. NG: GO TO  4 .

1. Select "IPDM E/R" on CONSULT-II, and 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 

1. OK: Replace IPDM E/R.
2. NG: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".
   Fig 3: Locating Data Monitor Display Screen

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

With CONSULT-II

1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH and LH connector.
3. Select "IPDM E/R" on CONSULT-II, and select "ACTIVE TEST" on "SELECT DIAG MODE" screen.
4. Select "LAMPS" on "SELECT TEST ITEM" screen.
5. Touch "LO" screen.
6. When headlamp low beam is operating, check voltage between front combination lamp RH and LH harness connector and ground.
   Fig 4: Voltage Table Of Front Combination Lamp RH And LH Harness Connector And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 5: Checking Voltage Between Front Combination Lamp RH And LH Harness Connector And Ground

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

Without CONSULT-II

1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH and LH connector.
3. Start auto active test. Refer to "AUTO ACTIVE TEST ".
4. When headlamp low beam is operating, check voltage between front combination lamp RH and LH harness connector and ground.
   Fig 6: Voltage Table Of Front Combination Lamp RH And LH Harness Connector And Ground

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

OK or NG 

1. OK: GO TO  6 .
2. NG: GO TO 5.

1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector E7 terminal 20 (R) and front combination lamp RH harness connector E24 terminal 3 (R).

   20 (R) - 3 (R): Continuity should exist. 

4. Check continuity between IPDM E/R harness connector E7 terminal 30 (R/B) and front combination lamp LH harness connector E41 terminal 3 (R/B).

   30 (R/B) - 3 (R/B): Continuity should exist. 

   Fig 7: Checking Continuity Between IPDM E/R Harness Connector E7 Terminal 30 (R/B) And Front Combination Lamp LH Harness Connector E41 Terminal 3 (R/B)

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

OK or NG 

1. OK: Replace IPDM E/R.
2. NG: Repair harness or connector.

1. Turn ignition switch OFF.
2. Check continuity between front combination lamp RH harness connector E24 terminal 4 (B/W) and ground.

   4 (B/W) - Ground: Continuity should exist. 

3. Check continuity between front combination lamp LH harness connector E41 terminal 4 (B/W) and ground.

   4 (B/W) - Ground: Continuity should exist. 

   Fig 8: Checking Continuity Between Front Combination Lamp LH Harness Connector E41 Terminal 4 (B/W) And Ground

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

OK or NG 

1. OK: Check headlamp harness and connectors, ballasts (HID control unit), and xenon bulbs. Refer to "Xenon Headlamp Trouble Diagnosis  ".
2. NG: Repair harness or connector.