Nissan Sentra Service Manual: Headlamp
Aiming adjustment
Preparation before adjusting
Before performing aiming adjustment, check the following:
- Ensure all tires are inflated to correct pressure.
- Place vehicle and screen on level surface.
- Ensure there is no load in vehicle other than the driver (or equivalent
weight placed in driver's position).
- Coolant and engine oil filled to correct level, and fuel tank full.
- Remove cargo and/or luggage to maintain an unloaded vehicle condition.
- Confirm spare tire, jack and tools are properly stowed.
- Carefully wipe off any dirt from headlamp lens.
Caution:
Do not use organic solvent (thinner, gasoline etc.)
- Place a driver or equivalent weight of 68.5 Kg (150 lb) on the driver
seat.
- By hand, bounce the front and rear of the vehicle to settle the
suspension and eliminate any static load.
- Place the front tires in the straight ahead position.
- Aim each headlamp individually and ensure other headlamp beam pattern is
blocked from screen.
Note:
- For headlamp aiming details, refer to regulations in your area.
- By regulation, no means for horizontal aim adjustment is provided from
the factory; only vertical aim is
adjustable.
- Use adjusting screw to perform aiming adjustment.
- Perform headlamp aiming if:
- The vehicle front body has been repaired.
- The front combination lamp has been removed or replaced.
- Any outfitting has been installed.
- The vehicle’s standard load condition has been substantially increased.

- Front combination lamp
- Suitable tool (for aiming adjustment)
- Adjusting screw
Aiming adjustment procedure
- Position the screen.
Note:
- Stop the vehicle facing the screen
- Place the screen on a plain road vertically.
- Face the screen with the vehicle. Maintain 10 m (33 ft) between the
headlamp bulb center and the screen.
- Start the engine. Turn the headlamp (lo) on.
Caution:
Do not cover the lens surface with tape, etc. The lens is made of
resin.
Note:
- Aim each headlamp individually and ensure other headlamp beam pattern
is blocked from screen.
- For horizontal aiming, adjust headlamp until beam pattern is at
horizontal center point.

- Right
- Left
- Center of headlamp bulb (H-V point)
- Cutoff line
- Screen
- Aim evaluation segment
- Step
- Horizontal center line of head lamp
- 30 mm (1.18 in)
- 4 mm (0.16 in)
- 10 m (33 ft)
- 480 mm (18.90 in)
- 160 mm (6.30 in)
- Vertical center line of headlamp
- Basic illuminating area for adjustment should be within the range shown
on the aiming chart. Adjust
headlamps accordingly.
Aiming adjustment
PREPARATION BEFORE ADJUSTING
The fog lamp is a semi-sealed beam type which uses a replaceable halogen
bulb. Before performing aiming
adjustment procedure, check the following:
...
Other materials:
Tcm branch line circuit
Diagnosis Procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and loose
connection (unit side and connector
side).
TCM
Harness connector f50
Harness co ...
Main line between dlc and av circuit
Diagnosis procedure
1.Check harness continuity (open circuit)
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
ECM
AV control unit
Check the continuity between the data link connector and the av ...
Diagnosis system (BCM)
Common item
Common item : consult function (bcm - common item)
Application item
Consult performs the following functions via can communication with bcm.
Direct diagnostic mode
Description
Ecu identification
The bcm part number is displayed.
Self Diagnostic Result
...
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