Headlamp LO Does Not Illuminate (One Side)

WARNING: This page is about a different car, the 2005 Nissan Quest. 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 (OUTER SIDE), FOR LOW BEAM ".
CHECK POWER TO HEADLAMP
1. Disconnect inoperative headlamp connector.
2. Turn the low beam headlamps ON.
3. Check voltage between inoperative headlamp connector terminal and ground.
  
  Fig 1: Terminals Voltage Reference Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Checking Voltage Between Inoperative Headlamp Connector Terminal & 1 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 low beam headlamps OFF.
2. Check continuity between inoperative headlamp connector terminal and ground.
  
  Fig 3: Terminals Continuity Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: Checking Continuity Between Inoperative Headlamp Connector Terminal 2 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: Check headlamp and IPDM E/R connector. 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.
2. Check continuity between harness connector terminals of IPDM E/R harness connector terminals of inoperative headlamp.
  
  Fig 5: Terminals Continuity Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Checking Continuity Between Harness Connector Terminals Of IPDM E/R Harness Connector Terminals 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 circuits and open circuits in harness between IPDM E/R and headlamps. Repair as necessary.