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Home >> Infiniti >> 2011 >> G37 IPL, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Exterior Lighting System -- G37 Coupe >> Periodic Maintenance >> Headlamp Aiming Adjustment >> Aiming Adjustment Procedure

Aiming Adjustment Procedure

  1. Place the screen.
    NOTE:
    • Stop the vehicle facing the wall.
    • Place the board on a plain road vertically.
  2. Face the vehicle with the screen. Maintain 10 m (32.8 ft) between the headlamp center and the screen.
  3. Start the engine. Turn the headlamp (LO) ON.
    NOTE: Shut off the headlamp light with the board to prevent from illuminating the adjustment screen.
    CAUTION: Never cover the lens surface with a tape etc. The lens is made of resin.
  4. Measure the distance (X) between the horizontal center line of headlamp (H) and the cutoff line (A) within the light axis measurement range (R) from the vertical center line ahead of headlamp (V).

    Light axis measurement range (R) : 350 ± 175 mm (13.78 ± 6.89 in) 

    Low beam distribution on the screen

    Fig 1: Identifying Distance Between Horizontal Center Line Of Headlamp And Cutoff Line And Light Axis Measurement Range
    G05226740Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Adjust the cutoff line height (X) with the aiming adjustment screw so as to enter in the adjustment range (M-N) according to the horizontal center line of headlamp (H).
    HEADLAMP ADJUSTMENT REFERENCE CHART

    unit: mm (in)
    Horizontal center line of headlamp (H) Highest cutoff line height (M) Lowest cutoff line height (N)
    700 (27.56) or less 4 (0.16) 30 (1.18)
    701(27.60) - 800 (31.50) 4 (0.16) 30 (1.18)
    801 (31.54) or more 17 (0.67) 44 (1.73)
    Fig 2: Identifying Distance Between Headlamp Center And Screen
    G07018137Courtesy of NISSAN MOTOR CO., U.S.A.

    Distance between the headlamp center and the screen (L) : 10 m (32.8 ft)