Infiniti QX4 (R50). Manual - part 437

 

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Infiniti QX4 (R50). Manual - part 437

 

 

Attachment No.14

TID

CID

P0420

01H

01H

Max.

 X

-

P0420

02H

81H

Min.

 X

-

P0430

03H

02H

Max.

 X

-

P0430

04H

82H

Min.

 X

-

P0440

05H

03H

Max.

 X

-

P1440

1

05H

03H

Max.

 X

-

EVAP control system purge flow monitoring

P1447

06H

83H

Min.

 X

mV

EVAP control system (Very small leak)

P1441

2

07H

03H

Max.

 X

-

P0133

09H

04H

Max.

 X

ms

P0131

0AH

84H

Min.

 X

mV

P0130

0BH

04H

Max.

 X

mV

P0132

0CH

04H

Max.

 X

mV

P0134

0DH

04H

Max.

 X

s

P0153

11H

05H

Max.

 X

ms

P0151

12H

85H

Min.

 X

mV

P0150

13H

05H

Max.

 X

mV

P0152

14H

05H

Max.

 X

mV

P0154

15H

05H

Max.

 X

s

P0139

19H

86H

Min.

 X

mV/500ms

P0137

1AH

86H

Min.

 X

mV

P0140

1BH

06H

Max.

 X

mV

P0138

1CH

06H

Max.

 X

mV

P0159

21H

87H

Min.

 X

mV/500ms

P0157

22H

87H

Min.

 X

mV

P0160

23H

07H

Max.

 X

mV

P0158

24H

07H

Max.

 X

mV

P0135

29H

08H

Max.

 X

mV

P0135

2AH

88H

Min.

 X

mV

P0155

2BH

09H

Max.

 X

mV

P0155

2CH

89H

Min.

 X

mV

P0141

2DH

0AH

Max.

 X

mV

P0141

2EH

8AH

Min.

 X

mV

P0161

2FH

0BH

Max.

 X

mV

P0161

30H

8BH

Min.

 X

mV

TEST VALUE AND TEST LIMIT (GST ONLY — NOT APPLICABLE TO CONSULT-II)

The following is the information specified in Mode 6 of SAE J1979.

The test value is a parameter used to determine whether a system/circuit diagnostic test is “OK” or “NG” while
being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the
maximum or minimum value and is compared with the test value being monitored.
Items for which these data (test value and test limit) are displayed are the same as SRT code items.

These data (test value and test limit) are specified by Test ID (TID) and Component ID (CID) and can be dis-
played on the GST screen.

: Applicable ・: Not applicable

SRT item 

Self-diagnostic test item

DTC

Test value

 (GST display) Te s t limit  Application

Unit

CATALYST

Three way catalyst function (Bank 1)

Three way catalyst function (Bank 2)

EVAP SYSTEM

EVAP control system (Small leak)

HO2S

Heated oxygen sensor 1(Bank 1)

Heated oxygen sensor 1(Bank 2)

Heated oxygen sensor 2(Bank 1)

Heated oxygen sensor 2(Bank 2)

HO2S HTR

Heated oxygen sensor 1 heater(Bank 1)

Heated oxygen sensor 2 heater(Bank 2)

Heated oxygen sensor 2 heater(Bank 1)

Heated oxygen sensor 2 heater(Bank 2)

1:Except models D22 VG33E engine, WD22 VG33E engine, R50 VQ35DE engine, JR50 VQ35DE engine 2001

2:Except models A33 VQ30DE engine, CA33 VQ30DE engine 2001MY.

GENERAL INFORMATION

SECTION

GI

CONTENTS

PRECAUTIONS ...............................................................3

Precautions ..................................................................3

PRECAUTIONS FOR SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)

AIR BAG

AND

SEAT BELT PRE-TENSIONER

.................................3

PRECAUTIONS FOR IVIS (INFINITI VEHICLE
IMMOBILIZER SYSTEM - NATS)

.................................3

PRECAUTIONS FOR INFINITI COMMUNICATOR
(IVCS)

.......................................................................4

GENERAL PRECAUTIONS

.........................................5

PRECAUTIONS FOR MULTIPORT FUEL
INJECTION SYSTEM OR ENGINE CONTROL
SYSTEM

...................................................................6

PRECAUTIONS FOR THREE WAY CATALYST

...........6

PRECAUTIONS FOR HOSES

.....................................7

PRECAUTIONS FOR ENGINE OILS

...........................8

PRECAUTIONS FOR FUEL

........................................8

PRECAUTIONS FOR AIR CONDITIONING

..................8

HOW TO USE THIS MANUAL........................................9
HOW TO READ WIRING DIAGRAMS.......................... 11

Sample/Wiring Diagram - EXAMPL - ........................ 11

OPTIONAL SPLICE

..................................................12

Description .................................................................13

CONNECTOR SYMBOLS

.........................................15

HARNESS INDICATION

...........................................16

COMPONENT INDICATION

......................................16

SWITCH POSITIONS

...............................................16

DETECTABLE LINES AND NON-DETECTABLE
LINES

.....................................................................17

MULTIPLE SWITCH

.................................................18

REFERENCE AREA

.................................................19

HOW TO CHECK TERMINAL .......................................21

Connector and Terminal Pin Kit.................................21
How to Probe Connectors .........................................21

PROBING FROM HARNESS SIDE

............................21

PROBING FROM TERMINAL SIDE

...........................21

How to Check Enlarged Contact Spring of
Terminal 
.....................................................................22
Waterproof Connector Inspection ..............................23

RUBBER SEAL INSPECTION

...................................23

WIRE SEAL INSPECTION

........................................23

Terminal Lock Inspection ...........................................23

HOW TO PERFORM EFFICIENT DIAGNOSIS
FOR AN ELECTRICAL INCIDENT 
...............................24

Work Flow..................................................................24
Incident Simulation Tests...........................................25

INTRODUCTION

......................................................25

VEHICLE VIBRATION

..............................................25

HEAT SENSITIVE

....................................................26

FREEZING

..............................................................26

WATER INTRUSION

................................................27

ELECTRICAL LOAD

.................................................27

COLD OR HOT START UP

.......................................27

Circuit Inspection .......................................................27

INTRODUCTION

......................................................27

TESTING FOR

OPENS

IN THE CIRCUIT

................28

TESTING FOR

SHORTS

IN THE CIRCUIT

..............29

GROUND INSPECTION

...........................................30

VOLTAGE DROP TESTS

..........................................30

CONTROL UNIT CIRCUIT TEST

...............................32

HOW TO FOLLOW TROUBLE DIAGNOSIS ................34

How to Follow Test Groups in Trouble Diagnosis .....35
Key to Symbols Signifying Measurements or
Procedures
.................................................................36

CONSULT-II CHECKING SYSTEM ...............................38

Function and System Application ..............................38
Nickel Metal Hydride Battery Replacement...............39
Checking Equipment..................................................39
CONSULT-II Data Link Connector (DLC) Circuit ......40

INSPECTION PROCEDURE

.....................................40

IDENTIFICATION INFORMATION ................................41

Model Variation ..........................................................41

PREFIX AND SUFFIX DESIGNATIONS

.....................41

Identification Number.................................................41

VEHICLE IDENTIFICATION NUMBER
ARRANGEMENT

.....................................................42

IDENTIFICATION PLATE

..........................................42

ENGINE SERIAL NUMBER

.......................................43

AUTOMATIC TRANSMISSION NUMBER

...................43

TRANSFER SERIAL NUMBER

..................................43

Dimensions ................................................................43

MA

EM

LC

EC

FE

AT

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

Wheels & Tires ..........................................................44

LIFTING POINTS AND TOW TRUCK TOWING ...........45

Screw Jack ................................................................45
Garage Jack and Safety Stand .................................46
2-pole Lift ...................................................................47
Tow Truck Towing ......................................................47

2WD MODELS

.........................................................48

4WD MODELS

.........................................................48

VEHICLE RECOVERY

..............................................49

TIGHTENING TORQUE OF STANDARD BOLTS ........50
SAE J1930 TERMINOLOGY LIST ................................51

SAE J1930 Terminology List .....................................51

CONTENTS

(Cont’d)

GI-2

Precautions

NBGI0001

Observe the following precautions to ensure safe and proper
servicing. These precautions are not described in each indi-
vidual section.

SGI646

PRECAUTIONS FOR SUPPLEMENTAL RESTRAINT
SYSTEM (SRS) “AIR BAG” AND “SEAT BELT
PRE-TENSIONER”

NBGI0001S01

The Supplemental Restraint System such as “AIR BAG” and “SEAT
BELT PRE-TENSIONER” used along with a seat belt, helps to
reduce the risk or severity of injury to the driver and front passen-
ger for certain types of collision. The SRS system composition
which is available to INFINITI QX4 is as follows:

I

For a frontal collision
The Supplemental Restraint System consists of driver air bag
module (located in the center of the steering wheel), front pas-
senger air bag module (located on the instrument panel on
passenger side), seat belt pre-tensioners, a diagnosis sensor
unit, warning lamp, wiring harness and spiral cable.

I

For a side collision
The Supplemental Restraint System consists of side air bag
module (located in the outer side of front seat), satellite sensor,
diagnosis sensor unit (one of components of air bags for a
frontal collision), wiring harness, warning lamp (one of compo-
nents of air bags for a frontal collision).

Information necessary to service the system safely is included in
the RS section of this Service Manual.

WARNING:

I

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 INFINITI
dealer.

I

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 RS section.

I

Do not use electrical test equipment on any circuit related
to the SRS unless instructed to in this Service Manual.
Spiral cable and wiring harnesses covered with yellow
insulation tape either just before the harness connectors
or for the complete harness are related to the SRS.

PRECAUTIONS FOR IVIS (INFINITI VEHICLE
IMMOBILIZER SYSTEM — NATS)

NBGI0001S08

IVIS (NATS) will immobilize the engine if someone tries to start it
without the registered key of IVIS (NATS).
Both of the originally supplied ignition key IDs have been IVIS
(NATS) registered.

MA

EM

LC

EC

FE

AT

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

PRECAUTIONS

Precautions

GI-3

 

 

 

 

 

 

 

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