Nissan Frontier D40. Manual - part 666

PRECAUTIONS

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PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

General precautions for service operations

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• Never work with wet hands.
• Turn the lighting switch OFF before disconnecting and connecting the connector.
• When checking the headlamp on/off operation, check it on vehicle and with the power connected to the vehi-

cle-side connector.

• Do not touch the headlamp bulb glass surface with bare hands or allow oil or grease to get on it. Do not

touch the headlamp bulb just after the headlamp is turned off, because it is very hot.

• When the bulb has burned out, wrap it in a thick vinyl bag and discard. Do not break the bulb.
• Leaving the bulb removed from the headlamp housing for a long period of time can deteriorate the perfor-

mance of the lens and reflector (dirt, clouding). Always prepare a new bulb and have it on hand when replac-
ing the bulb.

• Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.

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< ON-VEHICLE MAINTENANCE >

HEADLAMP

ON-VEHICLE MAINTENANCE

HEADLAMP

Aiming Adjustment

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NOTE:
• For headlamp aiming details, refer to the regulations in your area.
• If vehicle front body has been repaired or the headlamp assembly has been replaced, check headlamp aim-

ing.

• Before performing aiming adjustment, check the following:
- Confirm headlamp aiming switch is set to "0" (zero) position.
- 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.

- Confirm spare tire, jack and tools are properly stowed.
- Aim each headlamp individually and ensure other headlamp beam pattern is blocked from screen.
- Use adjusting screw to perform aiming adjustment

LOW BEAM AND HIGH BEAM

CAUTION:

Do not tighten adjustment screw beyond a torque of 1.67 N·m (17 kg-cm, 14.8 in-lb) or damage may
occur.
NOTE:
By regulation, no means for horizontal aim adjustment is provided from the factory; only vertical aim is adjust-
able.
1.

Turn headlamp low beam on.

2.

Use adjustment screw to perform aiming adjustment.

3.

Adjust beam pattern until cut-off line (top edge of illumination area) is positioned at same height off ground
as bulb center (on H-line). Measure cut-off line within distance A on H-line. See aiming chart below.
• Basic illuminating area for adjustment should be within the range shown on the aiming chart. Adjust

headlamps accordingly.

Headlamp Aiming

A. Headlamp RH adjustment screw

B.

Headlamp LH adjustment screw

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HEADLAMP

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Aiming Chart

1

Adjustment screen

2

Headlamp bulb center (HV point)

A

Minimum acceptable vertical aim di-
mension (see aiming chart)

B

Maximum acceptable vertical aim 
dimension (see aiming chart)

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H-V point

D

Distance of headlamp aiming screen 
from vehicle 7.62 m (25 ft.)

E

Maximum aim evaluation distance 
from vertical center on aiming 
screen 399mm (3

°

 R).

F

Minimum aim evaluation distance 
from vertical center on aiming 
screen 133 mm (1

°

R)

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Aim evaluation area

H

Horizontal aiming evaluation line. 

⇐

Right

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A (Minimum acceptable vertical aim dimension)

-3.3 mm (0.13 in)

0.025

°

 up 

B (Maximum acceptable vertical aim dimension) 

36.6 mm (1.44 in)

0.275

°

 down

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FRONT FOG LAMP

FRONT FOG LAMP

Aiming Adjustment

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The fog lamp is a semi-sealed beam type which uses a replaceable halogen bulb. Before performing aiming
adjustment, make sure of the following.
• Keep all tires inflated to correct pressure.
• Place vehicle on level ground.
• See that vehicle is unloaded (except for full levels of coolant, engine oil and fuel, and spare tire, jack, and

tools). Have the driver or equivalent weight placed in driver seat.

Adjust aiming in the vertical direction by turning the adjustment
screw.
NOTE:
Use a Phillips screwdriver to adjust. Turn screw clockwise to raise
pattern and counterclockwise to lower pattern.

1.

Set the distance between the screen and the center of the fog
lamp lens as shown.

2.

Turn front fog lamps ON.

3.

Remove front portion of fender protector(s) for adjustment screw access. Refer to 

EXT-20, "Removal and

Installation"

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