Nissan Maxima Service and Repair Manual: Precaution
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and
"SEAT BELT PRE-TENSIONER"
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 Manual.
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 harness
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 Ignition 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 three
minutes before performing any service.
Precaution for Work
- When removing or disassembling each component, be careful not to damage
or deform it. If a component may be subject to interference, be sure to
protect it with a shop cloth.
- When removing (disengaging) components with a screwdriver or similar
tool, be sure to wrap the component with a shop cloth or vinyl tape to
protect it.
- Protect the removed parts with a shop cloth and prevent them from
being dropped.
- Replace a deformed or damaged clip.
- If a part is specified as a non-reusable part, always replace it with a
new one.
- Be sure to tighten bolts and nuts securely to the specified torque.
- After installation is complete, be sure to check that each part works
properly.
- Follow the steps below to clean components: - Water soluble dirt:
- Dip a soft cloth into lukewarm water, wring the water out of the
cloth and wipe the dirty area.
- Then rub with a soft, dry cloth.
- Oily dirt:
- Dip a soft cloth into lukewarm water with mild detergent
(concentration: within 2 to 3%) and wipe the dirty area.
- Then dip a cloth into fresh water, wring the water out of the
cloth and wipe the detergent off.
- Then rub with a soft, dry cloth.
- Do not use organic solvent
such as thinner, benzene, alcohol or gasoline.
- For genuine leather
seats, use a genuine leather seat cleaner.
Description
The majority of the audio concerns are the result of outside causes (bad CD,
electromagnetic interference, etc.).
NOISE
The following noise results from variations in field strength, ...
Special Service Tool
The actual shape of the tools may differ from those illustrated here
Commercial Service Tools
...
Other materials:
B2191 difference of key
Description
Performs ID verification through BCM and Intelligent Key
when push-button ignition switch is pressed.
Prohibits the start of engine when an unregistered ID of Intelligent Key is
used.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCED ...
Air conditioning cut control
System Diagram
System Description
INPUT/OUTPUT SIGNAL CHART
*1: This signal is sent to the ECM via the CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and
battery voltage.
SYSTEM DESCRIPTION
This system improves engine operation when ...
B2553 ignition relay
Description
BCM turns ON the following relays to ignition power supply to each ECU when
the ignition switch is turned
ON.
Ignition relay-1 (inside IPDM E/R)
Ignition relay-2 (inside fuse block (J/B))
Front blower motor relay
BCM checks any ignition relay ON request for consistency wi ...