Nissan Pathfinder (2012 year). Manual — part 121
BRC-234
< UNIT REMOVAL AND INSTALLATION >
[TYPE 2]
YAW RATE/SIDE/DECEL G SENSOR
YAW RATE/SIDE/DECEL G SENSOR
Removal and Installation
INFOID:0000000007356988
REMOVAL
1. Remove the center console. Refer to
IP-22, "Removal and Installation"
.
2. Remove the yaw rate/side/decel G sensor nuts as shown.
CAUTION:
• Do not use power tools to remove or install the yaw rate/
side/decel G sensor.
• Do not drop or strike the yaw rate/side/decel G sensor.
NOTE:
The location of the yaw rate/side/decel G sensor is the same for
all models.
3. Disconnect the yaw rate/side/decel G sensor connector and remove the yaw rate/side/decel G sensor.
INSTALLATION
Installation is in the reverse order of removal.
• After installing the yaw rate/side/decel G sensor, it is necessary to calibrate the yaw rate/side/decel G sen-
sor. Refer to
BRC-122, "CALIBRATION OF DECEL G SENSOR : Special Repair Requirement"
.
WFIA0230E
August 2012
2012 Pathfinder
CCS-1
CRUISE CONTROL & DRIVER ASSISTANCE
C
D
E
F
G
H
I
J
K
L
M
B
CCS
SECTION
CCS
N
P
A
CONTENTS
CRUISE CONTROL SYSTEM
ASCD
PRECAUTION . . . . . . . . . . . ...
PRECAUTIONS . . . . . . . . . . . . ...
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect . . . . . . . . ....
SYSTEM DESCRIPTION . . . . . . . ..
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) . . . . . . . . . . . . . . . ...
Information . . . . . . . . . . . . . . . ....
August 2012
2012 Pathfinder
CCS-2
< PRECAUTION >
[ASCD]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000007808178
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.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000007808179
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.
4. Perform the necessary repair operation.
August 2012
2012 Pathfinder
CCS
PRECAUTIONS
CCS-3
< PRECAUTION >
[ASCD]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
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.
August 2012
2012 Pathfinder
CCS-4
< SYSTEM DESCRIPTION >
[ASCD]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
SYSTEM DESCRIPTION
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
Information
INFOID:0000000007347419
Automatic Speed Control Device (ASCD) system is controlled by ECM.
Regarding the information for ASCD system, refer to following;
• VQ40DE:
• VK56DE:
August 2012
2012 Pathfinder
CHG
CHG-1
ELECTRICAL & POWER CONTROL
C
D
E
F
G
H
I
J
K
L
B
SECTION
CHG
A
O
P
N
CONTENTS
CHARGING SYSTEM
PRECAUTION . . . . . . . . . . . ...
PRECAUTIONS . . . . . . . . . . . . ...
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect . . . . . . . . .....
Precaution for Power Generation Variable Voltage
Control System . . . . . . . . . . . . . . ..
Precaution for Work . . . . . . . . . . . . ..
PREPARATION . . . . . . . . . . .
PREPARATION . . . . . . . . . . . . ...
Special Service Tool . . . . . . . . . . . .....
Commercial Service Tool . . . . . . . . . . ..
BASIC INSPECTION . . . . . . . . .
DIAGNOSIS AND REPAIR WORKFLOW . . ..
Work Flow (With EXP-800 NI or GR8-1200 NI) . ....
Work Flow (Without EXP-800 NI or GR8-1200 NI) . ..
SYSTEM DESCRIPTION . . . . . . . .
CHARGING SYSTEM . . . . . . . . . . .
System Diagram . . . . . . . . . . . . . ..
System Description . . . . . . . . . . . . .
Component Description . . . . . . . . . . ..
POWER GENERATION VOLTAGE VARI-
ABLE CONTROL SYSTEM . . . . . . . .
System Diagram . . . . . . . . . . . . . ..
System Description . . . . . . . . . . . . .
Component Description . . . . . . . . . . ...
DTC/CIRCUIT DIAGNOSIS . . . . . . .
CHARGING SYSTEM PRELIMINARY IN-
SPECTION . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
B TERMINAL CIRCUIT . . . . . . . . . .
Description . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
L TERMINAL CIRCUIT (OPEN) . . . . . .
Description . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
L TERMINAL CIRCUIT (SHORT) . . . . . .
Description . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
S TERMINAL CIRCUIT . . . . . . . . . .
Description . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
WIRING DIAGRAM . . . . . . . . . ..
CHARGING SYSTEM . . . . . . . . . ...
Wiring Diagram . . . . . . . . . . . . . .
SYMPTOM DIAGNOSIS . . . . . . . ..
CHARGING SYSTEM . . . . . . . . . ...
Symptom Table . . . . . . . . . . . . . ...
REMOVAL AND INSTALLATION . . . ...
GENERATOR . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . . .
Generator . . . . . . . . . . . . . . . .
August 2012
2012 Pathfinder
CHG-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000007355038
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.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000007355039
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.
4. Perform the necessary repair operation.
August 2012
2012 Pathfinder
CHG
PRECAUTIONS
CHG-3
< PRECAUTION >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
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.
Precaution for Power Generation Variable Voltage Control System
INFOID:0000000007355040
CAUTION:
For this model, the battery current sensor that is installed to the negative battery cable measures the
charging/discharging current of the battery and performs various engine controls. If an electrical com-
ponent is connected directly to the negative battery terminal, the current flowing through that compo-
nent will not be measured by the battery current sensor. This condition may cause a malfunction of
the engine control system and battery discharge may occur. Do not connect an electrical component
or ground wire directly to the battery terminal.
Precaution for Work
INFOID:0000000007355041
• 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 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, and wring the water out of the cloth to wipe the dirty
area.
Then rub with a soft and 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, and wring the water out of the cloth to wipe the detergent off. Then rub with
a soft and dry cloth.
• Do not use organic solvent such as thinner, benzene, alcohol, or gasoline.
• For genuine leather seats, use a genuine leather seat cleaner.
August 2012
2012 Pathfinder
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