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CCS-4
< REMOVAL AND INSTALLATION >
SWITCH
REMOVAL AND INSTALLATION
SWITCH
Removal and InstallationINFOID:0000000009460701
For removal and installation of the steering switch, refer to AV-51, "Removal and Installation".
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ELECTRICAL & POWER CONTROL
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CONTENTS
CHARGING SYSTEM
PRECAUTION ................
...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution for Power Generation Voltage Variable
Control System .................................................... ......
3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
SYSTEM DESCRIPTION ..............................5
COMPONENT PARTS ................................... .....5
QR25DE ................................................................. ......5
QR25DE : Component Parts Location ......................5
QR25DE : Component Description ...........................6
VQ35DE ................................................................. ......6
VQ35DE : Component Parts Location ......................7
VQ35DE : Component Description ...........................8
CHARGING SYSTEM ..................................... .....9
System Diagram .................................................. ......9
System Description ...................................................9
Component Description ............................................9
POWER GENERATION VOLTAGE VARI-
ABLE CONTROL SYSTEM ............................ ....
10
System Diagram .................................................. ....10
System Description .................................................10
Component Description ...........................................10
WIRING DIAGRAM ......................................12
CHARGING SYSTEM ..................................... ....12
Wiring Diagram ................................................... ....12
BASIC INSPECTION ...................................17
DIAGNOSIS AND REPAIR WORKFLOW ........17
Work Flow (With EXP-800 NI or GR8-1200 NI) .......17
Work Flow (Without EXP-80 0 NI or GR8-1200 NI) ....20
DTC/CIRCUIT DIAGNOSIS .........................23
CHARGING SYSTEM PRELIMINARY IN-
SPECTION ....... ................................ .................
23
Diagnosis Procedure ........................................... ....23
POWER GENERATION VOLTAGE VARI-
ABLE CONTROL SYSTEM OPERATION IN-
SPECTION ....... ................................ .................
24
Diagnosis Procedure ........................................... ....24
B TERMINAL CIRCUIT .....................................26
Description ...............................................................26
Diagnosis Procedure ...............................................26
L TERMINAL CIRCUIT (OPEN) ........................27
Description ...............................................................27
Diagnosis Procedure ...............................................27
L TERMINAL CIRCUIT (SHORT) .....................29
Description ...............................................................29
Diagnosis Procedure ...............................................29
S TERMINAL CIRCUIT .....................................30
Description ...............................................................30
Diagnosis Procedure ...............................................30
SYMPTOM DIAGNOSIS ..............................31
CHARGING SYSTEM .......................................31
Symptom Table ................................................... ....31
REMOVAL AND INSTALLATION ...............32
GENERATOR ....................................................32
Removal and Installation ..................................... ....32
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CHG-2
SERVICE DATA AND SPECIFICATIONS
(SDS) .............. .............................................
35
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. ...
35
Generator ............................................................. ...35
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PRECAUTIONSCHG-3
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951598
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service t he system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, 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 in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied 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 Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric 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 mi nutes before performing any service.
Precaution for Power Generation Voltage Variable Control SystemINFOID:0000000009460643
CAUTION:
For this model, the battery current sensor that is in stalled to the battery cable at the negative terminal
measures the charging/discharging cu rrent of the battery, and performs various controls. If the electri-
cal component or the ground wire is connected direct ly to the battery terminal, the current other than
that being measured with the battery current sensor is charging to or discharging from the battery.
This condition causes the malfunction of the control, and then the battery discharge may occur. Do
not connect the electrical component or the gr ound wire directly to the battery terminal.
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CHG-4
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service ToolINFOID:0000000009460644
The actual shapes of the tools may differ from those illustrated here.
Commercial Service ToolINFOID:0000000009460645
Tool number
(TechMate 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.
—
(—) Model EXP-800 NI
Battery and electrical diagnostic ana-
lyzer Tests batteries and charging systems.
For operating instructions, refer to diagnostic
analyzer instruction manual.
AWIIA1239ZZ
JSMIA0806ZZ
Tool name Description
Power tool Loosening nuts, screws and bolts
PIIB1407E
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< SYSTEM DESCRIPTION >
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SYSTEM DESCRIPTION
COMPONENT PARTS
QR25DE
QR25DE : Component Parts LocationINFOID:0000000009460646
AWMIA1297GB
1. Generator 2. IPDM E/R 3. ECM
4. Battery current sensor 5. Charge warning lamp indicator
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< SYSTEM DESCRIPTION >
COMPONENT PARTS
QR25DE : Component Description
INFOID:0000000009460647
VQ35DE
Component part Description
Generator (IC regulator) The IC regulator controls the power generation voltage by the tar-
get power generation voltage based on the received PWM com-
mand signal.
When there is no PWM command signal, the generator performs
the normal power generation according to the characteristic of the
IC regulator.
ECM The battery current sensor detects the charging/discharging cur-
rent of the battery. The ECM judges the battery condition based on
this signal.
The ECM judges whether to request more output via the power
generation voltage variable control according to the battery condi-
tion.
When performing the power generation voltage variable control,
the ECM calculates the target power generation voltage according
to the battery condition and sends the calculated value as the pow-
er generation command value to the IPDM E/R.
IPDM E/R The IPDM E/R converts the received power generation command
value into a pulse width modulated (PWM) command signal and
sends it to the IC regulator.
Combination meter (c harge warning lamp) The IC regulator warning function activates to illuminate the
charge warning lamp if any of the following symptoms occur while
generator is operating:
·Excessive voltage is produced.
·No voltage is produced.
Battery current sensor The battery current sensor is located on the negative battery cable
terminal. The battery current sensor detects the charging/dis-
charging current of the battery and sends a voltage signal to the
ECM according to the current value detected.
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< SYSTEM DESCRIPTION >
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VQ35DE : Component Parts LocationINFOID:0000000009460648
AWMIA1304ZZ
1. Generator 2. IPDM E/R 3. ECM
4. Battery current sensor 5. Charge warning lamp indicator
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