Nissan Sentra Service Manual: General Precaution
WARNING:
When replacing fuel line parts, be sure to observe the following.
- Put a “CAUTION: FLAMMABLE” sign in the work area.
- Be sure to work in a well ventilated area and have a CO2 fire
extinguisher.
- Do not smoke while working on the fuel system. Keep open flames
and sparks away from the work
area.
CAUTION:
- Before removing fuel line parts, carry out the following
procedures:
- Put drained fuel in an explosion-proof container and put the lid
on securely. Keep the container in
safe area.
- Release fuel pressure from the fuel lines. Refer to EC-49, "EVAPORATIVE
EMISSION SYSTEM : System
Description".
- Disconnect the battery ground cable.
- Always replace O-rings and clamps with new ones.
- Do not kink or twist tubes when they are being installed.
- Do not tighten hose clamps excessively to avoid damaging hoses.
Tighten high-pressure rubber hose clamp so that clamp end
is 3 mm (0.12 in) from hose end.
Tightening torque specifications are the same for all rubber
hose clamps.
Ensure that screw does not contact adjacent parts.

- Apply fuel pressure to the fuel system by turning the ignition
switch to ON (without starting the engine). Then check for
fuel leaks at the fuel tube connections.
- Start the engine and rev the engine, then check for fuel
leaks at the fuel tube connections.
- After installing the tubes, run the engine and check for fuel
leaks at the connections.
- Use only a Genuine NISSAN fuel filler cap as a replacement. If
an incorrect fuel filler cap is used, the MIL may come on.
- For servicing “Evaporative Emission System” parts, refer to
EC-49, "EVAPORATIVE EMISSION SYSTEM : System Description".

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
dri ...
Special Service Tool
The actual shape of the tools may differ from those illustrated here.
Commercial Service Tool
...
Other materials:
Structure and operation
Positive Crankcase Ventilation
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase
blow-by gas to the intake
manifold.
During partial throttle operation of the engine, the intake manifold sucks the
bl ...
System description
Component parts
POWER DOOR LOCK SYSTEM
POWER DOOR LOCK SYSTEM : Component Parts Location
BCM (view with instrument panel removed)
Front door switch LH
Front door lock actuator LH
Front door lock assembly LH
Front door switch RH
Front door lock actuator RH
Rear door switch RH
...
B terminal circuit
Description
“B” terminal circuit supplies power to charge the battery and to operate the
vehicles electrical system.
Diagnosis procedure
Regarding wiring diagram information. Refer to chg-9, "wiring diagram".
1.Check “b” terminal connection
Turn ignition switc ...
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