Headlamp Low Beam Does Not Illuminate (One Side)

CHECK BULB
Check ballast (HID control unit) and xenon bulb of lamp which does not illuminate. Refer to "Xenon Headlamp Trouble Diagnosis ".

OK or NG
1. OK: GO TO 2.
2. NG: Replace malfunctioning part.
CHECK HEADLAMP INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH or LH connector.
3. Turn ignition switch ON.
4. Lighting switch is turned 2ND position.
5. Check voltage between front combination lamp RH or LH harness connector and ground.
  
  Fig 1: Voltage Table Of Front Combination Lamp RH Or LH Harness Connector And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Checking Voltage Between Front Combination Lamp RH Or LH Harness Connector And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 4 .
2. NG: GO TO 3.
CHECK HEADLAMP CIRCUIT
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 3: 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.
CHECK HEADLAMP GROUND
1. Check continuity between front combination lamp RH harness connector E24 terminal 4 (B/W) and ground.
  4 (B/W) - Ground: Continuity should exist.
2. Check continuity between front combination lamp LH harness connector E41 terminal 4 (B/W) and ground.
  4 (B/W) - Ground: Continuity should exist.
  
  Fig 4: Checking Continuity Between Front Combination Lamp RH And LH Harness Connector Terminal 4 (B/W) And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Check headlamp harness and connectors.
2. NG: Repair harness or connector.