Headlamp HI Does Not Illuminate (One Side)

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

BULB INSPECTION
Inspect inoperative headlamp bulb.

OK or NG
- OK: GO TO 2.
- NG: Replace headlamp bulb. Refer to "HEADLAMP (INNER SIDE), FOR HIGH BEAM ".
CHECK POWER TO HEADLAMP
1. Disconnect inoperative headlamp connector.
2. Turn the high beam headlamps ON.
3. Check voltage between inoperative headlamp terminal and ground.
  
  Fig 1: Inoperative Headlamp Terminal And Ground Voltage Specification Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Checking Voltage Between Inoperative Headlamp Terminal And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 3.
- NG: GO TO 4.
CHECK HEADLAMP GROUND
1. Turn the high beam headlamps OFF.
2. Check continuity between inoperative headlamp connector and ground.
  
  Fig 3: Inoperative Headlamp Connector And Ground Continuity Specification Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: Checking Continuity Between Inoperative Headlamp Connector And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: Check headlamp connector for damage or poor connection. Repair as necessary.
- NG: Repair open circuit in harness between inoperative headlamp and ground.
INSPECTION BETWEEN IPDM E/R AND HEADLAMPS
1. Disconnect IPDM E/R connector and inoperative headlamp connector.
2. Check continuity between harness connector terminal of IPDM E/R and harness connector terminal of inoperative headlamp.
  
  Fig 5: Harness Connector Terminal Of IPDM E/R And Harness Connector Terminal Of Inoperative Headlamp Continuity Specification Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Checking Continuity Between Harness Connector Terminal Of IPDM E/R And Harness Connector Terminal Of Inoperative Headlamp
  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: Check for short and open circuits in harness between IPDM E/R and headlamps. Repair as necessary.