Infiniti M35/M45 Y50. Manual - part 1041

LATCH (LOWER ANCHORS AND TETHER FOR CHILDREN) SYSTEM

SB-35

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LATCH (LOWER ANCHORS AND TETHER FOR CHILDREN) SYSTEM

PFP:75466

Removal and Installation

NHS0008M

CAUTION:

Replace anchor bolts if they are deformed or worn out.

REMOVAL

1.

Remove the rear seat. Refer to 

SE-177, "Removal and Installa-

tion"

 .

2.

Remove rear seat frame (Models with rear power seat).

3.

Remove LATCH (Lower Anchor and Tether for Children) system. 

INSTALLATION

●

Install in the reverse order of removal.

●

Tighten by specified torque.

PHIA1108E

Tightening torque

: 28.0 N·m (2.9 kg-m, 21 ft-lb)

SB-36

TOP TETHER STRAP CHILD RESTRAINT

TOP TETHER STRAP CHILD RESTRAINT

PFP:88000

Removal and Installation

NHS0008N

CAUTION:

Replace anchor bolts if they are deformed or worn out. 

REMOVAL

1.

Remove the top tether strap child restraint cover. Refer to 

EI-42,

"Removal and Installation"

 .

2.

Remove the top tether strap child restraint.

INSTALLATION

●

Install in the reverse order of removal.

●

Tighten by specified torque.

PHIA1109E

Tightening torque

: 30.0 N·m (3.1 kg-m, 22 ft-lb)

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STARTING & CHARGING SYSTEM

K  ELECTRICAL

CONTENTS

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SECTION 

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STARTING & CHARGING SYSTEM

PRECAUTIONS .......................................................... 2

Precautions for Supplemental Restraint System 
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Precautions for Power Generation Voltage Variable 
Control System ......................................................... 2

PREPARATION ........................................................... 3

Special Service Tools  ............................................... 3
Commercial Service Tools ........................................ 3

BATTERY .................................................................... 4

How to Handle Battery  ............................................. 4

METHODS OF PREVENTING OVER-DIS-
CHARGE ............................................................... 4
CHECKING ELECTROLYTE LEVEL  .................... 5
SPECIFIC GRAVITY CHECK  ............................... 5
CHARGING THE BATTERY  ................................. 6

Trouble Diagnosis with Battery Service Center ........ 7
Removal and Installation  .......................................... 7

REMOVAL ............................................................. 7
INSTALLATION ..................................................... 7

STARTING SYSTEM  .................................................. 8

System Description  .................................................. 8
Wiring Diagram — START — ................................... 9

VQ35DE ENGINE MODELS  ................................. 9
VK45DE ENGINE MODELS  ............................... 10

Trouble Diagnosis with Starting/Charging System 
Tester (Starting)  .......................................................11

DIAGNOSTIC PROCEDURE 1 ........................... 12
DIAGNOSTIC PROCEDURE 2 ........................... 13
MINIMUM SPECIFICATION OF CRANKING 
VOLTAGE REFERENCING COOLANT TEM-
PERATURE ......................................................... 13

Removal and Installation  ........................................ 14

VQ35DE ENGINE MODELS (2WD) .................... 14
VQ35DE ENGINE MODELS (AWD)  ................... 15
VK45DE ENGINE MODELS  ............................... 16

Disassembly and Assembly .................................... 17

VQ35DE ENGINE MODELS (2WD)  .................... 17
VQ35DE ENGINE MODELS (AWD) .................... 18
VK45DE ENGINE MODELS ................................ 19

Inspection After Disassembly  ................................. 19

PINION/CLUTCH CHECK  ................................... 19

CHARGING SYSTEM  ............................................... 20

System Description ................................................. 20

DESCRIPTION .................................................... 20
MALFUNCTION INDICATOR  .............................. 20
POWER GENERATION VOLTAGE VARIABLE 
CONTROL SYSTEM  ........................................... 21

Wiring Diagram — CHARGE —  ............................. 22

VQ35DE ENGINE MODELS (2WD)  .................... 22
VQ35DE ENGINE MODELS (AWD) .................... 23
VK45DE ENGINE MODELS ................................ 24

Trouble Diagnosis with Starting/Charging System 
Tester (Charging) .................................................... 25

PRELIMINARY INSPECTION  ............................. 26
DIAGNOSTIC PROCEDURE 1  ........................... 26
DIAGNOSTIC PROCEDURE 2  ........................... 27
DIAGNOSTIC PROCEDURE 3  ........................... 27
DIAGNOSTIC PROCEDURE 4  ........................... 28

Power Generation Voltage Variable Control System 
Operation Inspection  .............................................. 29
Removal and Installation  ........................................ 31

VQ35DE ENGINE MODELS  ............................... 31
VK45DE ENGINE MODELS ................................ 33

Disassembly and Assembly .................................... 35

VQ35DE ENGINE MODELS  ............................... 35
VK45DE ENGINE MODELS ................................ 36

SERVICE DATA AND SPECIFICATIONS (SDS)  ...... 37

Battery .................................................................... 37
Starter ..................................................................... 37
Alternator ................................................................ 37

SC-2

PRECAUTIONS

PRECAUTIONS 

PFP:00011

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT 
BELT PRE-TENSIONER”

NKS003NB

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 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 per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS 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 for Power Generation Voltage Variable Control System

NKS003NC

CAUTION:

For this model, the battery current sensor that is installed to the battery cable at the negative terminal
measures the charging/discharging current of the battery, and performs various controls. If the electri-
cal component or the ground wire is connected directly 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 ground wire directly to the battery terminal.