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Home >> Nissan-Datsun >> 2012 >> Sentra SE-R >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Lighting System >> Service Information >> Headlamp (For USA) >> Headlamp Low Beam Does Not Illuminate (One Side)

Headlamp Low Beam Does Not Illuminate (One Side)

  1. HEADLAMP LOW BEAM FUSE INSPECTION

    Inspect 15A fuse [No. 40 (LH) and No. 41 (RH) located in IPDM E/R].

    OK or NG 

    OK: GO TO 2.

    NG: Repair harness.

  2. CHECK BULB

    Check bulb of headlamp which does not illuminate.

    OK or NG 

    OK: GO TO 3.

    NG: Replace bulb. Refer to , "BULB REPLACEMENT ".

  3. CHECK HEADLAMP INPUT SIGNAL
    1. Turn ignition switch OFF.
    2. Disconnect headlamp connector.
    3. Combination switch (lighting and turn signal switch) is turned to 2ND position.
    4. Check voltage between headlamp harness connector and ground.
      Terminal Voltage
      (+) (-)
      Headlamp connector Terminal
      RH E20 3 Ground Battery voltage
      LH E21
      Fig 1: Checking Headlamp Input Signal
      G04928304Courtesy of NISSAN NORTH AMERICA, INC.

      OK or NG 

      OK: GO TO 4.

      NG: GO TO  5.

  4. CHECK HEADLAMP GROUND CIRCUIT
    1. Turn ignition switch OFF.
    2. Check continuity between headlamp harness connector and ground.
      Headlamp connector Terminal Ground Continuity
      RH E20 5 Yes
      LH E21
      Fig 2: Checking Headlamp Ground Circuit
      G04928296Courtesy of NISSAN NORTH AMERICA, INC.

      OK or NG 

      OK: Check condition of headlamp harness connector.

      NG: Repair harness or connector.

  5. CHECK HEADLAMP CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R connector.
    3. Check continuity between IPDM E/R harness connector (A) and headlamp harness connector (B).
      Circuit A B Continuity
      Connector Terminal Connector Terminal
      RH E47 54 E20 3 Yes
      LH 52 E21
      Fig 3: Checking Headlamp Circuit
      G04928303Courtesy of NISSAN NORTH AMERICA, INC.

      OK or NG 

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

      NG: Repair harness or connector.