Infiniti Q45 (FY33). Manual - part 446

INCH TO METRIC CONVERSION TABLE

(Rounded-off for automotive use)

inches

mm

inches

mm

.100

2.54

.610

15.49

.110

2.79

.620

15.75

.120

3.05

.630

16.00

.130

3.30

.640

16.26

.140

3.56

.650

16.51

.150

3.81

.660

16.76

.160

4.06

.670

17.02

.170

4.32

.680

17.27

.180

4.57

.690

17.53

.190

4.83

.700

17.78

.200

5.08

.710

18.03

.210

5.33

.720

18.29

.220

5.59

.730

18.54

.230

5.84

.740

18.80

.240

6.10

.750

19.05

.250

6.35

.760

19.30

.260

6.60

.770

19.56

.270

6.86

.780

19.81

.280

7.11

.790

20.07

.290

7.37

.800

20.32

.300

7.62

.810

20.57

.310

7.87

.820

20.83

.320

8.13

.830

21.08

.330

8.38

.840

21.34

.340

8.64

.850

21.59

.350

8.89

.860

21.84

.360

9.14

.870

22.10

.370

9.40

.880

22.35

.380

9.65

.890

22.61

.390

9.91

.900

22.86

.400

10.16

.910

23.11

.410

10.41

.920

23.37

.420

10.67

.930

23.62

.430

10.92

.940

23.88

.440

11.18

.950

24.13

.450

11.43

.960

24.38

.460

11.68

.970

24.64

.470

11.94

.980

24.89

.480

12.19

.990

25.15

.490

12.45

1.000

25.40

.500

12.70

2.000

50.80

.510

12.95

3.000

76.20

.520

13.21

4.000

101.60

.530

13.46

5.000

127.00

.540

13.72

6.000

152.40

.550

13.97

7.000

177.80

.560

14.22

8.000

203.20

.570

14.48

9.000

228.60

.580

14.73

10.000

254.00

.590

14.99

20.000

508.00

.600

15.24

METRIC TO INCH CONVERSION TABLE

(Rounded-off for automotive use)

mm

inches

mm

inches

1

.0394

51

2.008

2

.079

52

2.047

3

.118

53

2.087

4

.157

54

2.126

5

.197

55

2.165

6

.236

56

2.205

7

.276

57

2.244

8

.315

58

2.283

9

.354

59

2.323

10

.394

60

2.362

11

.433

61

2.402

12

.472

62

2.441

13

.512

63

2.480

14

.551

64

2.520

15

.591

65

2.559

16

.630

66

2.598

17

.669

67

2.638

18

.709

68

2.677

19

.748

69

2.717

20

.787

70

2.756

21

.827

71

2.795

22

.866

72

2.835

23

.906

73

2.874

24

.945

74

2.913

25

.984

75

2.953

26

1.024

76

2.992

27

1.063

77

3.031

28

1.102

78

3.071

29

1.142

79

3.110

30

1.181

80

3.150

31

1.220

81

3.189

32

1.260

82

3.228

33

1.299

83

3.268

34

1.339

84

3.307

35

1.378

85

3.346

36

1.417

86

3.386

37

1.457

87

3.425

38

1.496

88

3.465

39

1.535

89

3.504

40

1.575

90

3.543

41

1.614

91

3.583

42

1.654

92

3.622

43

1.693

93

3.661

44

1.732

94

3.701

45

1.772

95

3.740

46

1.811

96

3.780

47

1.850

97

3.819

48

1.890

98

3.858

49

1.929

99

3.898

50

1.969

100

3.937

Attachment No.7

TID

CID

Three way catalyst function (Bank 1)

P0420

01H

01H

Max.

 X

-

Three way catalyst function (Bank 2)

P0430

03H

02H

Max.

 X

-

P0440

05H

03H

Max.

 X

-

EVAP SYSTEM

P1440

05H

03H

Max.

 X

-

EVAP control system purge flow monitoring

P1447

06H

83H

Min.

 X

mV

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

P0400

31H

8CH

Min.

 X

℃

P0400

32H

8CH

Min.

 X

℃

P0400

33H

8CH

Min.

 X

℃

P0400

34H

8CH

Min.

 X

℃

P1402

35H

0CH

Max.

 X

℃

P0402

36H

0CH

Max.

 X

-

P0402

37H

8CH

Min.

 X

-

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

Te s t limit  Application

Unit

CATALYST

SRT item 

Self-diagnostic test item

DTC

Test value

 (GST display)

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)

EGR SYSTEM

EGR function

EGRC-BPT valve function

GENERAL INFORMATION

SECTION

GI

CONTENTS

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

Precautions for Supplemental Restraint System
(SRS)

″

AIR BAG

″

and

″

SEAT BELT

PRE-TENSIONER

″

......................................................2

Precautions for IVIS (Infiniti Vehicle Immobilizer
System - NATS)...........................................................2
Precautions for INFINITI Communicator (IVCS) .........3
General Precautions ....................................................3
Precautions for Multiport Fuel Injection System
or Engine Control System ...........................................5

Precautions for Three Way Catalyst............................5
Precautions for Engine Oils.........................................6
Precautions for Fuel ....................................................7
Precautions for Air Conditioning ..................................7

HOW TO USE THIS MANUAL........................................8
HOW TO READ WIRING DIAGRAMS..........................10

Sample/Wiring Diagram - EXAMPL - ........................10
Description .................................................................12

HOW TO CHECK TERMINAL.......................................20

Connector and Terminal Pin Kit.................................20
How to Probe Connectors .........................................20
How to Check Enlarged Contact Spring of
Terminal .....................................................................21
Waterproof Connector Inspection ..............................22
Terminal Lock Inspection ...........................................22

HOW TO PERFORM EFFICIENT DIAGNOSIS FOR

AN ELECTRICAL INCIDENT ........................................23

Work Flow..................................................................23
Incident Simulation Tests...........................................24
Circuit Inspection .......................................................27

HOW TO FOLLOW FLOW CHART IN TROUBLE
DIAGNOSES ..................................................................33

How to Follow This Flow Chart .................................34

CONSULT-II CHECKING SYSTEM ...............................36

Function and System Application ..............................36
Nickel Metal Hydride Battery Replacement...............36
Checking Equipment..................................................37
CONSULT-II Data Link Connector (DLC) Circuit ......37

IDENTIFICATION INFORMATION.................................38

Model Variation ..........................................................38
Identification Number.................................................39
Dimensions ................................................................40
Wheels and Tires.......................................................40

LIFTING POINTS AND TOW TRUCK TOWING...........41

Preparation ................................................................41
Board-on Lift ..............................................................41
Garage Jack and Safety Stand .................................42
2-pole Lift ...................................................................43
Tow Truck Towing ......................................................43

TIGHTENING TORQUE OF STANDARD BOLTS ........45
SAE J1930 TERMINOLOGY LIST ................................46

SAE J1930 Terminology List .....................................46

MA

EM

LC

EC

FE

AT

PD

FA

RA

BR

ST

RS

BT

HA

EL

IDX

Observe the following precautions to ensure safe and proper
servicing.

SGI646

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

The Supplemental Restraint System “AIR BAG” and “SEAT BELT
PRE-TENSIONER”, used along with a seat belt, help to reduce the
risk or severity of injury to the driver and front passenger in a fron-
tal collision. The Supplemental Restraint System consists of air bag
modules (located in the center of the steering wheel and on the
instrument panel on the passenger side), seat belt pre-tensioners,
a diagnosis sensor unit, warning lamp, wiring harness and spiral
cable. In addition to the supplemental air bag modules for a fron-
tal collision, the supplemental side air bag used along with the seat
belt helps to reduce the risk or severity of injury to the driver and
front passenger in a side collision. The supplemental side air bag
consists of air bag modules (located in the outer side of front
seats), satellite sensor, diagnosis sensor unit (one of components
of supplemental air bags for a frontal collision), wiring harness,
warning lamp (one of components of supplemental air bags for a
frontal collision). Information necessary to service the system
safely is included in the RS section in 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.

I

Do not use electrical test equipment on any circuit related
to the SRS unless instructed to in this Service Manual.
SRS wiring harnesses (except “SEAT BELT PRE-TEN-
SIONER” connector) can be identified with yellow harness
connector (and with yellow harness protector or yellow
insulation tape before the harness connectors).

Precautions for IVIS (Infiniti Vehicle
Immobilizer System — NATS)

NATS (Nissan Anti-Theft System)

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

PRECAUTIONS

GI-2