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Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

  1. CHECK HEADLAMP (LO) FUSES 
    1. Turn the ignition switch OFF.
    2. Check that the following fuses are not open.
      Unit Location Fuse No. Capacity
      Headlamp LO (LH) IPDM E/R 40 15A
      Headlamp LO (RH) IPDM E/R 41 15A

      Is the fuse open? 

      YES: Repair the harness and replace the fuse.

      NO: GO TO 2.

  2. CHECK HEADLAMP (LO) OUTPUT VOLTAGE 
    1. Turn the ignition switch OFF.
    2. Disconnect the front combination lamp connector.
    3. Turn the ignition switch ON.
    4. Turn the low beam headlamps ON.
    5. With the low beam headlamps ON, check the voltage between the combination lamp connector and ground.
      Fig 1: Checking Voltage Between Combination Lamp Connector And Ground
      G08693144Courtesy of NISSAN NORTH AMERICA, INC.
      (+) (-) Voltage
      Connector Terminal
      LH E11 (without DTRL) 1 Ground Battery voltage
      E6 (with DTRL)
      RH E107 (without DTRL)
      E108 (with DTRL)

      Is voltage reading as specified? 

      YES: GO TO  4.

      NO: GO TO 3.

  3. CHECK HEADLAMP (LO) CIRCUIT FOR OPEN 
    1. Turn the ignition switch OFF.
    2. Disconnect IPDM E/R connector E123.
    3. Check continuity between the IPDM E/R harness connector (A) and the front combination lamp harness connector (B).
      A B Continuity
      Connector Terminal Connector Terminal
      LH E123 52 E11 1 Yes
      RH 54 E107 1

      Does continuity exist? 

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

      NO: Repair the harnesses or connectors.

      Fig 2: Checking Continuity Between IPDM E/R Harness Connector And Front Combination Lamp Harness Connector
      G08693145Courtesy of NISSAN NORTH AMERICA, INC.
  4. CHECK FRONT COMBINATION LAMP (LO) GROUND CIRCUIT 

    Check continuity between the front combination lamp harness connector terminal and ground.

    Connector Terminal - Continuity
    LH E11 (without DTRL) 4 Ground Yes
    E6 (with DTRL)
    RH E107 (without DTRL)
    E108 (with DTRL)

    Does continuity exist? 

    YES: Inspect the headlamp bulb.

    NO: Repair the harness.

    Fig 3: Checking Continuity Between Front Combination Lamp Harness Connector Terminal And Ground
    G08693146Courtesy of NISSAN NORTH AMERICA, INC.
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