Infiniti M35/M45 Y50. Manual - part 112

 

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Infiniti M35/M45 Y50. Manual - part 112

 

 

SERVICE DATA AND SPECIFICATIONS (SDS)

AT-371

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Vehicle Speed at Which Lock-Up Occurs/Releases

NCS001RF

2WD MODELS

At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal: OFF)

At half throttle, the accelerator opening is 4/8 of the full opening.

At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal: OFF)

At half throttle, the accelerator opening is 4/8 of the full opening.

AWD MODELS

At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal: OFF)

At half throttle, the accelerator opening is 4/8 of the full opening.

Stall Speed

NCS001RG

Line Pressure

NCS001RH

A/T Fluid Temperature Sensor

NCS001RI

Engine model

VQ35DE

Throttle position

Vehicle speed km/h (MPH)

Lock-up ON

Lock-up OFF

Closed throttle

53 - 61 (33 - 38)

50 - 58 (31 - 36)

Half throttle

196 - 204 (122 - 127)

138 - 146 (86 - 91)

Engine model

VK45DE

Throttle position

Vehicle speed km/h (MPH)

Lock-up ON

Lock-up OFF

Closed throttle

67 - 75 (42 - 47)

50 - 58 (31 - 36)

Half throttle

181 - 189 (112 - 117)

160 - 168 (99 - 104)

Engine model

VQ35DE

Throttle position

Vehicle speed km/h (MPH)

Lock-up ON

Lock-up OFF

Closed throttle

51 - 59 (32 - 37)

48 - 56 (30 - 35)

Half throttle

188 - 196 (117 - 122)

132 - 140 (82 - 87)

Engine model

Stall speed

VQ35DE

2,650 - 2,950 rpm

VK45DE

2,260 - 2,560 rpm

Engine speed

Line pressure [kPa (kg/cm

2

 , psi)]

“R” position

“D”, “M” positions

At idle speed

425 - 465 (4.3 - 4.7, 62 - 67)

379 - 428 (3.9 - 4.4, 55 - 62)

At stall speed

1,605 - 1,950 (16.4 - 19.9, 233 - 283)

1,310 - 1,500 (13.4 - 15.3, 190 - 218)

Name

Condition   

CONSULT-II “DATA MONITOR” (Approx.)

Resistance (Approx.)

ATF TEMP SE 1

0

°

C (32

°

F)

3.3 V

15 k

20

°

C (68

°

F)

2.7 V

6.5 k

80

°

C (176

°

F)

0.9 V

0.9 k

ATF TEMP SE 2

0

°

C (32

°

F)

3.3 V

10 k

20

°

C (68

°

F)

2.5 V

4 k

80

°

C (176

°

F)

0.7 V

0.5 k

AT-372

SERVICE DATA AND SPECIFICATIONS (SDS)

Turbine Revolution Sensor

NCS001RJ

Vehicle Speed Sensor A/T (Revolution Sensor)

NCS001RK

Reverse Brake

NCS001RL

*: Always check with the Parts Department for the latest parts information.

Total End Play

NCS001RM

BEARING RACE FOR ADJUSTING TOTAL END PLAY

*: Always check with the Parts Department for the latest parts information.

Name

Condition

Data   

(Approx.)

Turbine revolution 
sensor 1

When running at 50 km/h (31 MPH) in 4th speed with the closed throttle position signal “OFF”.

 1.3 kHz

Turbine revolution 
sensor 2

When running at 20 km/h (12 MPH) in 1st speed with the closed throttle position signal “OFF”.

Name

Condition

Data (Approx.)

Revolution sensor

When running at 20 km/h (12 MPH).

185 Hz

Model code number

98X1D, 98X6C, 98X1C, 98X6D, 95X7A

Number of drive plates

6

Number of driven plates

6

Clearance

mm (in)

Standard

0.7 - 1.1 (0.028 - 0.043)

Thickness of retaining plates

Thickness

mm (in)

Part number*

4.2 (0.165)
4.4 (0.173)
4.6 (0.181)
4.8 (0.189)
5.0 (0.197)
5.2 (0.205) 

31667 90X14
31667 90X15
31667 90X16
31667 90X17
31667 90X18
31667 90X19

Total end play

mm (in)

0.25 - 0.55 (0.0098 - 0.0217)

Thickness

mm (in)

Part number*

0.8 (0.031)
1.0 (0.039)
1.2 (0.047)
1.4 (0.055)
1.6 (0.063)
1.8 (0.071)

31435 95X00
31435 95X01
31435 95X02
31435 95X03
31435 95X04
31435 95X05

ATC-1

AUTOMATIC AIR CONDITIONER

J  AIR CONDITIONER

CONTENTS

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SECTION 

ATC

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ATC

AUTOMATIC AIR CONDITIONER

PRECAUTIONS .......................................................... 5

Precautions for Supplemental Restraint System 
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 5
Precautions Necessary for Steering Wheel Rotation 
After Battery Disconnect  .......................................... 5

OPERATION PROCEDURE  ................................. 5

Precautions for Procedures without Cowl Top Cover 

..... 6

Precautions for Working with HFC-134a (R-134a) 

..... 6

CONTAMINATED REFRIGERANT  ....................... 7

General Refrigerant Precautions .............................. 7
Precautions for Refrigerant Connection  ................... 7

ABOUT ONE-TOUCH JOINT ................................ 7
FEATURES OF NEW TYPE REFRIGERANT 
CONNECTION .................................................... 10
O-RING AND REFRIGERANT CONNECTION ... 10

Precautions for Servicing Compressor ................... 12
Precautions for Service Equipment  ........................ 13

RECOVERY/RECYCLING EQUIPMENT ............ 13
ELECTRICAL LEAK DETECTOR  ....................... 13
VACUUM PUMP  ................................................. 13
MANIFOLD GAUGE SET .................................... 13
SERVICE HOSES  ............................................... 14
SERVICE COUPLERS ........................................ 14
REFRIGERANT WEIGHT SCALE  ...................... 14
CHARGING CYLINDER ...................................... 14

Precautions for Leak Detection Dye ....................... 15

IDENTIFICATION ................................................ 15
IDENTIFICATION LABEL FOR VEHICLE ........... 15

PREPARATION ......................................................... 16

Special Service Tools  ............................................. 16
HFC-134a (R-134a) Service Tools and Equipment 

... 17

Commercial Service Tools ...................................... 19

REFRIGERATION SYSTEM  ..................................... 20

Refrigerant Cycle  ................................................... 20

REFRIGERANT FLOW  ....................................... 20
FREEZE PROTECTION  ..................................... 20

Refrigerant System Protection  ............................... 20

REFRIGERANT PRESSURE SENSOR  ............. 20
PRESSURE RELIEF VALVE ............................... 20

Variable Displacement Compressor  ....................... 21

GENERAL INFORMATION  ................................. 21
DESCRIPTION .................................................... 22

Component Layout  ................................................. 25

LUBRICANT .............................................................. 26

Maintenance of Lubricant Quantity in Compressor ... 26

LUBRICANT ........................................................ 26
LUBRICANT RETURN OPERATION  .................. 26
LUBRICANT ADJUSTING PROCEDURE FOR 
COMPONENTS REPLACEMENT EXCEPT 
COMPRESSOR .................................................. 27
LUBRICANT ADJUSTING PROCEDURE FOR 
COMPRESSOR REPLACEMENT ....................... 27

AIR CONDITIONER CONTROL  ............................... 29

Description of Air Conditioner LAN Control System ... 29
System Construction  .............................................. 29

OPERATION ........................................................ 30
TRANSMISSION DATA AND TRANSMISSION 
ORDER ............................................................... 30
AIR MIX DOOR CONTROL (AUTOMATIC TEM-
PERATURE CONTROL)  ..................................... 31
FAN SPEED CONTROL ...................................... 31
INTAKE DOOR CONTROL  ................................. 31
MODE DOOR CONTROL  ................................... 31
UPPER VENTILATOR DOOR CONTROL  .......... 31
MAGNET CLUTCH CONTROL  ........................... 32
SELF-DIAGNOSIS SYSTEM  .............................. 32

Description of Control System  ................................ 33
Control Operation  ................................................... 33

DISPLAY SCREEN .............................................. 33
MULTIFUNCTION SWITCH  ................................ 34
DISPLAY SCREEN .............................................. 34
MODE SWITCH (DRIVER SIDE)  ........................ 34
MODE SWITCH (PASSENGER SIDE) ................ 34
TEMPERATURE CONTROL SWITCH (POTEN-
TIO TEMPERATURE CONTROL) (DRIVER 
SIDE) ................................................................... 34
TEMPERATURE CONTROL SWITCH (POTEN-
TIO TEMPERATURE CONTROL) (PASSEN-
GER SIDE)  .......................................................... 34

ATC-2

AUTO SWITCH  ................................................... 34
DEFROSTER (DEF) SWITCH ............................. 34
UPPER VENT SWITCH  ...................................... 34
A/C SWITCH  ....................................................... 35
FAN SWITCHES .................................................. 35
OFF SWITCH  ...................................................... 35
REAR WINDOW DEFOGGER SWITCH  ............. 35
INTAKE SWITCH ................................................. 35
DUAL SWITCH  .................................................... 35

Control Operation (Rear Control Switch)  ................ 35

AUTO SWITCH  ................................................... 35
FAN SWITCH  ...................................................... 35
REAR TEMPERATURE CONTROL SWITCH  ..... 36

Fail-Safe Function  .................................................. 36
Discharge Air Flow  ................................................. 37
System Description ................................................. 38

SWITCHES AND THEIR CONTROL FUNCTION ... 38

CAN Communication System Description  .............. 39

TROUBLE DIAGNOSIS  ............................................ 40

CONSULT-II Function (ECM) .................................. 40

CONSULT-II BASIC OPERATION  ....................... 40
DATA MONITOR .................................................. 40

How to Perform Trouble Diagnosis for Quick and 
Accurate Repair  ...................................................... 40

WORK FLOW  ...................................................... 40
SYMPTOM TABLE  .............................................. 41

Component Parts and Harness Connector Location ... 42

ENGINE COMPARTMENT  .................................. 42
PASSENGER COMPARTMENT .......................... 43

Schematic ............................................................... 44
Wiring Diagram —A/C— ......................................... 46
Auto Amp. Terminals and Reference Value  ............ 54

PIN CONNECTOR TERMINAL LAYOUT  ............ 54
TERMINALS AND REFERENCE VALUE FOR 
UNIFIED METER AND A/C AMP. ........................ 54

Self-diagnosis Function  .......................................... 56

DESCRIPTION .................................................... 56
FUNCTION CONFIRMATION PROCEDURE ...... 57
AUXILIARY MECHANISM: TEMPERATURE 
SETTING TRIMMER  ........................................... 63
AUXILIARY MECHANISM: FOOT POSITION 
SETTING TRIMMER  ........................................... 64
AUXILIARY MECHANISM: INLET PORT MEM-
ORY FUNCTION  ................................................. 64

Operational Check  .................................................. 65

CHECKING MEMORY FUNCTION  ..................... 65
CHECKING BLOWER  ......................................... 65
CHECKING DISCHARGE AIR (MODE SWITCH 
AND DEF SWITCH)  ............................................ 65
CHECKING DISCHARGE AIR (UPPER VENT 
SWITCH) ............................................................. 66
CHECKING INTAKE AIR  ..................................... 66
CHECKING TEMPERATURE DECREASE  ......... 66
CHECKING TEMPERATURE INCREASE  .......... 66
CHECKING A/C SWITCH  ................................... 66
CHECKING AUTO MODE  ................................... 66

Power Supply and Ground Circuit for Auto Amp. ... 67

INSPECTION FLOW  ........................................... 67
COMPONENT DESCRIPTION ............................ 68

DIAGNOSIS PROCEDURE FOR A/C SYSTEM ...68

Rear Control Switch Circuit  .....................................70

DIAGNOSIS PROCEDURE FOR REAR CON-
TROL SWITCH  ....................................................70

LAN System Circuit .................................................71

DIAGNOSIS PROCEDURE FOR LAN CIRCUIT ...71

Mode Door Motor Circuit .........................................76

INSPECTION FLOW ............................................76
SYSTEM DESCRIPTION .....................................77
COMPONENT DESCRIPTION  ............................78
DIAGNOSIS PROCEDURE FOR MODE DOOR 
MOTOR ................................................................78

Upper Ventilator Door Motor Circuit  ........................79

INSPECTION FLOW ............................................79
SYSTEM DESCRIPTION .....................................80
COMPONENT DESCRIPTION  ............................81
DIAGNOSIS PROCEDURE FOR UPPER VEN-
TILATOR DOOR MOTOR  ....................................81

Air Mix Door Motor Circuit .......................................82

INSPECTION FLOW ............................................82
SYSTEM DESCRIPTION .....................................83
COMPONENT DESCRIPTION  ............................84
DIAGNOSIS PROCEDURE FOR AIR MIX DOOR 
MOTOR ................................................................84

Air Mix Door Motor PBR Circuit  ..............................84

DIAGNOSIS PROCEDURE FOR AIR MIX DOOR 
MOTOR PBR  .......................................................84

Intake Door Motor Circuit  ........................................85

INSPECTION FLOW ............................................85
SYSTEM DESCRIPTION .....................................86
COMPONENT DESCRIPTION  ............................87
DIAGNOSIS PROCEDURE FOR INTAKE DOOR 
MOTOR ................................................................87

Blower Motor Circuit ................................................88

INSPECTION FLOW ............................................88
SYSTEM DESCRIPTION .....................................89
COMPONENT DESCRIPTION  ............................90
DIAGNOSIS PROCEDURE FOR BLOWER 
MOTOR ................................................................90
COMPONENT INSPECTION ...............................92

Magnet Clutch Circuit ..............................................93

INSPECTION FLOW ............................................93
SYSTEM DESCRIPTION .....................................94
DIAGNOSIS PROCEDURE FOR MAGNET 
CLUTCH ..............................................................94
COMPONENT INSPECTION ...............................97

Insufficient Cooling ..................................................98

INSPECTION FLOW ............................................98
PERFORMANCE TEST DIAGNOSIS ................100
PERFORMANCE CHART ..................................102
TROUBLE DIAGNOSIS FOR UNUSUAL PRES-
SURE .................................................................104
DIAGNOSIS PROCEDURE FOR INSUFFI-
CIENT COOLING ...............................................106

Insufficient Heating  ...............................................108

INSPECTION FLOW ..........................................108

Noise .....................................................................109

INSPECTION FLOW ..........................................109

Self-diagnosis ....................................................... 110

 

 

 

 

 

 

 

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