Nissan Pathfinder (2012 year). Manual — part 568
STR-1
ENGINE
C
D
E
F
G
H
I
J
K
L
M
SECTION
STR
A
STR
N
O
P
CONTENTS
STARTING SYSTEM
PRECAUTION . . . . . . . . . . . ...
PRECAUTIONS . . . . . . . . . . . . ...
Precaution for Power Generation Variable Voltage
Control System . . . . . . . . . . . . . . ..
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect . . . . . . . . .....
Precaution for Work . . . . . . . . . . . . ..
PREPARATION . . . . . . . . . . .
PREPARATION . . . . . . . . . . . . ...
Special Service Tool . . . . . . . . . . . .....
Commercial Service Tool . . . . . . . . . . ..
BASIC INSPECTION . . . . . . . . .
DIAGNOSIS AND REPAIR WORKFLOW . . ..
Work Flow (With GR8-1200 NI) . . . . . . . ....
Work Flow (Without GR8-1200 NI) . . . . . . ...
SYSTEM DESCRIPTION . . . . . . . .
STARTING SYSTEM . . . . . . . . . . ..
System Diagram . . . . . . . . . . . . . ..
System Description . . . . . . . . . . . . .
Component Parts Location . . . . . . . . . ..
Component Description . . . . . . . . . . ..
DTC/CIRCUIT DIAGNOSIS . . . . . . .
B TERMINAL CIRCUIT . . . . . . . . . .
Description . . . . . . . . . . . . . . . ...
Diagnosis Procedure - VQ40DE . . . . . . . ..
Diagnosis Procedure - VK56DE . . . . . . . ..
S CONNECTOR CIRCUIT . . . . . . . . .
Description . . . . . . . . . . . . . . . ...
Diagnosis Procedure - VQ40DE . . . . . . . ..
Diagnosis Procedure - VK56DE . . . . . . . ..
WIRING DIAGRAM . . . . . . . . . ..
STARTING SYSTEM . . . . . . . . . . .
Wiring Diagram - VQ40DE . . . . . . . . . ..
Wiring Diagram - VK56DE . . . . . . . . . ...
SYMPTOM DIAGNOSIS . . . . . . . ..
STARTING SYSTEM . . . . . . . . . . .
Symptom Table . . . . . . . . . . . . . ...
REMOVAL AND INSTALLATION . . . ...
STARTER MOTOR . . . . . . . . . . ...
Removal and Installation . . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . .
STARTER MOTOR . . . . . . . . . . ...
Starter . . . . . . . . . . . . . . . . . ..
August 2012
2012 Pathfinder
STR-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000007358897
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 for Power Generation Variable Voltage Control System
INFOID:0000000007358898
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 Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000007358899
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
August 2012
2012 Pathfinder
PRECAUTIONS
STR-3
< PRECAUTION >
C
D
E
F
G
H
I
J
K
L
M
A
STR
N
P
O
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.
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 Work
INFOID:0000000007358900
• 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
STR-4
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000007358901
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tool
INFOID:0000000007358902
Tool number
(Kent-Moore No.)
Tool name
Description
—
(—) Model GR8-1200 NI
Multitasking battery and electrical di-
agnostic station
Tests batteries, starting and charging sys-
tems and charges batteries.
For operating instructions, refer to diagnostic
station instruction manual.
AWIIA1239ZZ
Tool name
Description
Power tool
Loosening nuts, screws and bolts
PIIB1407E
August 2012
2012 Pathfinder
DIAGNOSIS AND REPAIR WORKFLOW
STR-5
< BASIC INSPECTION >
C
D
E
F
G
H
I
J
K
L
M
A
STR
N
P
O
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow (With GR8-1200 NI)
INFOID:0000000008802647
STARTING SYSTEM DIAGNOSIS WITH GR8-1200 NI
To test the starting system, use the following special service tool:
• GR8-1200 NI Multitasking battery and electrical diagnostic station
NOTE:
Refer to the diagnostic station Instruction Manual for proper starting system diagnosis procedures.
August 2012
2012 Pathfinder
STR-6
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
OVERALL SEQUENCE
DETAILED FLOW
NOTE:
To ensure a complete and thorough diagnosis, the battery, starter motor and generator test segments must be
done as a set from start to finish.
1.
DIAGNOSIS WITH MULTITASKING BATTERY AND ELECTRICAL DIAGNOSTIC STATION GR8-1200 NI
AWBIA1200GB
August 2012
2012 Pathfinder
DIAGNOSIS AND REPAIR WORKFLOW
STR-7
< BASIC INSPECTION >
C
D
E
F
G
H
I
J
K
L
M
A
STR
N
P
O
Perform the starting system test with Multitasking battery and electrical diagnostic station GR8-1200 NI. For
details and operating instructions, refer to diagnostic station Instruction Manual.
Test result
CRANKING NORMAL>>GO TO 2.
LOW VOLTAGE>>GO TO 5.
CHARGE BATTERY>>Perform the slow battery charging procedure. (Initial rate of charge is 10A for 12
hours.) Perform battery test again. Refer to diagnostic station instruction manual.
REPLACE BATTERY>>Before replacing battery, clean the battery cable clamps and battery posts. Perform
battery test again. Refer to diagnostic station instruction manual. If second test result is
“REPLACE BATTERY”, then do so. Perform battery test again to confirm repair.
2.
CRANKING CHECK
Check that the starter motor operates properly.
Does the engine crank normally?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
ENGINE START CHECK
Check that the engine starts.
Does the engine start?
YES
>> Inspection End.
NO
>> Perform further diagnosis of engine mechanical or engine control system. Refer to EM and EC
sections. Once resolved, perform battery test again.
4.
STARTER MOTOR ACTIVATION
Check that the starter motor operates.
Does the starter motor turn?
YES
>> Check ring gear and starter motor drive pinion. Once resolved, perform battery test again.
NO
>> GO TO 7.
5.
COMPARISON BETWEEN ENGINE COOLANT AND CRANKING VOLTAGE
Compare the engine coolant temperature and verify the cranking voltage is within specifications.
Minimum Specification of Cranking Voltage Referencing Coolant Temperature
Is the voltage less than the specified value?
YES
>> GO TO 7.
NO
>> GO TO 6.
6.
STARTER OPERATION
Check the starter operation.
Does the starter motor turn smoothly?
YES
>> Inspection End.
NO
>> GO TO 7.
7.
“B” TERMINAL CIRCUIT INSPECTION
Check “B” terminal circuit. Refer to
STR-13, "Diagnosis Procedure - VQ40DE"
Is “B” terminal circuit normal?
YES
>> GO TO 8.
NO
>> Repair as needed.
8.
“S” CONNECTOR CIRCUIT INSPECTION
Engine coolant temperature [
°
C (
°
F)]
Voltage [V]
−
30 to
−
20 (
−
22 to
−
4)
8.6
−
19 to
−
10 (
−
2 to 14)
9.1
−
9 to 0 (16 to 32)
9.5
More than 1 (More than 34)
9.9
August 2012
2012 Pathfinder
STR-8
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
Check “S” connector circuit. Refer to
STR-16, "Diagnosis Procedure - VQ40DE"
(VQ40DE) or
(VK56DE).
Is “S” connector circuit normal?
YES
>> GO TO 9.
NO
>> Repair as needed.
9.
ENGINE ROTATION STATUS
Check that the engine can be rotated by hand.
Does the engine turn freely by hand?
YES
>> Replace starter motor.
NO
>> Perform further diagnosis of engine mechanical or powertrain mechanism. Once resolved, per-
form battery test again using Multitasking battery and electrical diagnostic station GR8-1200 NI.
Refer to the diagnostic station Instruction Manual for proper testing procedures.
August 2012
2012 Pathfinder
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст