Nissan Pathfinder (2012 year). Instruction — part 451
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< HOW TO USE THIS MANUAL >
[CAN]
HOW TO USE THIS SECTION
HOW TO USE THIS MANUAL
HOW TO USE THIS SECTION
Caution
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• This section describes information peculiar to a vehicle, sheets for trouble diagnosis, and inspection proce-
dures.
• For trouble diagnosis procedure, refer to
LAN-14, "Trouble Diagnosis Procedure"
.
Abbreviation List
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Abbreviation in CAN communication signal chart, and the diagnosis sheet are as per the following list.
Abbreviation
Unit name
SELECT SYSTEM
(CONSULT)
CAN DIAG SUPPORT MNTR
(CONSULT)
4WD
Transfer control unit
ALL MODE AWD/4WD
AWD/4WD
A-BAG
Air bag diagnosis sensor unit
AIR BAG
—
ABS
ABS actuator and electric unit (control unit)
ABS
VDC/TCS/ABS
ADP
Driver seat control unit
AUTO DRIVE POS.
—
AV
AV control unit
MULTI AV
DISPLAY
BCM
BCM
BCM
BCM/SEC
DLC
Data link connector
—
—
ECM
ECM
ENGINE
ECM
HVAC
A/C auto amp.
HVAC
HVAC
I-KEY
Intelligent Key unit
INTELLIGENT KEY
I-KEY
IPDM-E
IPDM E/R
IPDM E/R
IPDM E/R
M&A
Combination meter
METER/M&A
METER/M&A
STRG
Steering angle sensor
—
STRG
TCM
TCM
TRANSMISSION
TCM
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2012 Pathfinder
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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 “SRS AIR BAG” and “SEAT BELT” of this
Instruction.
WARNING:
Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision that 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 “SRS AIR BAG”.
• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Instruction. 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:
Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, never 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.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
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NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″
LOCK
″
position.
• Always use CONSULT to perform self-diagnosis as a part of each function inspection after finishing work. If
DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the
″
ACC
″
position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
August 2012
2012 Pathfinder
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< PRECAUTION >
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PRECAUTIONS
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the
″
LOCK
″
position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT.
Precautions for Trouble Diagnosis
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CAUTION:
• Never apply 7.0 V or more to the measurement terminal.
• Use a tester with open terminal voltage of 7.0 V or less.
• Turn the ignition switch OFF and disconnect the battery cable from the negative terminal when
checking the harness.
Precautions for Harness Repair
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• Solder the repaired area and wrap tape around the soldered area.
NOTE:
A fray of twisted lines must be within 110 mm (4.33 in).
• Bypass connection is never allowed at the repaired area.
NOTE:
Bypass connection may cause CAN communication error. The
spliced wire becomes separated and the characteristics of twisted
line are lost.
• Replace the applicable harness as an assembly if error is detected on the shield lines of CAN communica-
tion line.
SKIB8766E
SKIB8767E
August 2012
2012 Pathfinder
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DIAGNOSIS AND REPAIR WORKFLOW
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Interview Sheet
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SKIB8898E
August 2012
2012 Pathfinder
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DIAGNOSIS AND REPAIR WORKFLOW
Diagnosis Sheet (CAN Type 1)
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JSMIA0901GB
August 2012
2012 Pathfinder
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DIAGNOSIS AND REPAIR WORKFLOW
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Diagnosis Sheet (CAN Type 2)
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JSMIA0902GB
August 2012
2012 Pathfinder
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DIAGNOSIS AND REPAIR WORKFLOW
Diagnosis Sheet (CAN Type 3)
INFOID:0000000007354977
JSMIA0903GB
August 2012
2012 Pathfinder
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DIAGNOSIS AND REPAIR WORKFLOW
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Diagnosis Sheet (CAN Type 4)
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JSMIA0904GB
August 2012
2012 Pathfinder
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