2007 INFINITI M35 B engine

AT-278
TRANSMISSION ASSEMBLY
Revision: 2007 April2007 M35/M45

Install crankshaft position sensor (POS). Refer to EM-31, "Removal and Installation (2WD Models)" (for
VQ35DE engine), EM-187, "
Removal and Installation" (for VK45DE engine).

After completing installation, check A/T fluid leakage, A/T fluid level and A/T position. Refer to AT- 1 3 ,
"Checking A/T Fluid" , AT- 2 2 8 , "Checking of A/T Position" .
Removal and Installation (AWD Models) NCS001QZ
COMPONENTS
REMOVAL
CAUTION:

When removing the A/T assembly from engine, first remove the crankshaft position sensor (POS)
from the A/T assembly.

Be careful not to damage sensor edge.
1. Disconnect the battery cable from the negative terminal.
2. Remove engine under cover with power tool.
3. Remove A/T fluid level gauge.
4. Remove exhaust front tube and center muffler and with power tool. Refer to EX-5, "
Removal and Installa-
tion" .
1. A/T assembly 2. A/T fluid level gauge 3. A/T fluid charging pipe
4. O-ring 5. Copper washer 6. Fluid cooler tube
7. Bracket 8. Heat insulator 9. Rear engine mounting member
10. Engine mounting insulator (rear)
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to GI-11, "
Components" .
However, refer to the following symbols for others.
:For tightening torque, refer to AT-280, "
INSTALLATION" .
SCIA6753E

TRANSMISSION ASSEMBLY
AT-279
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5. Remove heat insulator.
6. Remove rear propeller shaft. Refer to PR-8, "
Removal and Installation" .
7. Remove front cross bar with power tool. Refer to FSU-27, "
Removal and Installation" .
8. Remove exhaust mounting bracket. Refer to EX-5, "
Removal and Installation" .
9. Remove three way catalyst. Refer to EX-5, "
Removal and Installation" .
10. Remove front propeller shaft. Refer to PR-5, "
Removal and Installation" .
11. Remove control rod. Refer to AT- 2 2 6 , "
Control Rod Removal and Installation" .
12. Remove crankshaft position sensor (POS) (1) from A/T assem-
bly.
CAUTION:

Do not subject it to impact by dropping or hitting it.

Do not disassemble.

Do not allow metal filings, etc., to get on the sensor's
front edge magnetic area.

Do not place in an area affected by magnetism.
13. Remove starter motor. Refer to SC-15, "
VQ35DE ENGINE
MODELS (AWD)" .
14. Remove rear plate cover. Refer to EM-38, "
Removal and Instal-
lation (AWD Models)" .
15. Turn crankshaft, and remove the four tightening bolts for drive
plate and torque converter.
CAUTION:
When turning the crankshaft, turn it clockwise as viewed
from the front of the engine.
16. Support A/T assembly with a transmission jack.
CAUTION:
When setting the transmission jack, be careful not to allow
it to collide against the drain plug.
17. Remove rear engine mounting member with power tool.
18. Remove engine mounting insulator (rear).
19. Disconnect A/T assembly harness connector.
20. Remove air breather hose. Refer to AT- 2 7 2 , "
Removal and Installation" .
21. Remove A/T fluid charging pipe from A/T assembly.
22. Remove O-ring from A/T fluid charging pipe.
23. Disconnect fluid cooler tube from the A/T assembly.
24. Plug up openings such as the A/T fluid charging pipe hole, etc.
25. Remove bolts fixing A/T assembly to engine assembly with power tool.
26. Remove A/T assembly with transfer assembly from vehicle.
CAUTION:

Secure torque converter to prevent it from dropping.

Secure A/T assembly to a transmission jack.
27. Remove transfer assembly from A/T assembly with power tool.
SCIA6506J
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SCIA2203E

AT-280
TRANSMISSION ASSEMBLY
Revision: 2007 April2007 M35/M45
INSPECTION
Installation and Inspection of Torque Converter

After inserting a torque converter to a A/T, be sure to check dis-
tance “A” to ensure it is within the reference value limit.
INSTALLATION
Install the removed parts in the reverse order of the removal, while paying attention to the following work.

When installing A/T assembly to the engine assembly, attach the
fixing bolts in accordance with the following standard.

Align the positions of tightening bolts for drive plate with those of
the torque converter, and temporarily tighten the bolts. Then,
tighten the bolts with the specified torque. Refer to AT- 2 7 8 ,
"COMPONENTS" .
CAUTION:

When turning crankshaft, turn it clockwise as viewed from
the front of the engine.

When tightening the tightening bolts for the torque con-
verter after fixing the crankshaft pulley bolts, be sure to
confirm the tightening torque of the crankshaft pulley
mounting bolts. Refer to EM-74, "
INSTALLATION" .

After converter is installed to drive plate, rotate crankshaft
several turns and check to be sure that A/T rotates freely without binding.

Install crankshaft position sensor (POS). Refer to EM-38, "Removal and Installation (AWD Models)" .

After completing installation, check A/T fluid leakage, A/T fluid level and A/T position. Refer to AT- 1 3 ,
"Checking A/T Fluid" , AT- 2 2 8 , "Checking of A/T Position" . Distance “A”: 25.0 mm (0.98 in) or more
SCIA5694E
Bolt No. 1 2 3 4
Number of bolts 1 5 2 1
Bolt length
“ ”mm (in)55 (2.17) 65 (2.56) 35 (1.38) 40 (1.57)
Tightening torque
N·m (kg-m, ft-lb)75
(7.7, 55)47
(4.8, 35)34
(3.5, 25)
SCIA4600E
SCIA2288E

AT-370
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2007 April2007 M35/M45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsNCS001RD
*1: Refer to MA-12, "Fluids and Lubricants" .
Vehicle Speed at Which Gear Shifting OccursNCS001RE
2WD MODELS

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

At half throttle, the accelerator opening is 4/8 of the full opening.
AW D M OD E LS

At half throttle, the accelerator opening is 4/8 of the full opening. Applied modelVQ35DE engine VK45DE engine
2WD AWD 2WD
Automatic transmission model RE5R05A
Transmission model code number 98X1D, 98X6C 98X1C, 98X6D 95X7A
Stall torque ratio 1.74: 1 1.87: 1
Transmission gear ratio1st 3.842 3.827
2nd 2.353 2.368
3rd 1.529 1.519
4th 1.000 1.000
5th 0.839 0.834
Reverse 2.765 2.613
Recommended fluid Genuine NISSAN Matic J ATF*1
Fluid capacity 10.3 liter (10-7/8 US qt, 9-1/8 Imp qt)
CAUTION:

Use only Genuine NISSAN Matic J ATF. Do not mix with other fluid.

Using ATF other than Genuine NISSAN Matic J ATF will deteriorate in driveability and A/T durability, and may damage the
A/T, which is not covered by the warranty.
Engine model VQ35DE
Throttle positionVehicle speed km/h (MPH)
D
1 →D2D2 →D3D3 →D4D4 →D5D5 →D4D4 →D3D3 →D2D2 →D1
Full throttle 52 - 56
(32 - 35)85 - 93
(53 - 58)126 - 136
(78 - 85)195 - 205
(121 - 127)191 - 201
(119 - 125)113- 123
(70 - 76)70 - 78
(44 - 48)28 - 32
(17 - 20)
Half throttle 42 - 46
(26 - 29)70 - 76
(44 - 47)107 - 115
(67 - 71)140 - 148
(87 - 92)111 - 11 9
(69 - 74)67 - 75
(42 - 47)35 - 41
(22 - 25)11 - 1 5
(7 - 9)
Engine model VK45DE
Throttle positionVehicle speed km/h (MPH)
D
1 →D2D2 →D3D3 →D4D4 →D5D5 →D4D4 →D3D3 →D2D2 →D1
Full throttle 56 - 60
(35 - 37)89 - 97
(55 - 60)121 - 131
(75 - 81)206 - 216
(128 - 134)202 - 212
(126 - 132)121 - 131
(75 - 81)73 - 81
(45 - 50)30 - 34
(19 - 21)
Half throttle 48 - 52
(30 - 32)82 - 88
(51 - 55)126 - 134
(78 - 83)155 - 163
(96 - 101)128 - 136
(80 - 85)70 - 78
(43 - 48)29 - 35
(18 - 22)9 - 13
(6 - 8)
Engine model VQ35DE
Throttle positionVehicle speed km/h (MPH)
D
1 →D2D2 →D3D3 →D4D4 →D5D5 →D4D4 →D3D3 →D2D2 →D1
Full throttle 50 - 54
(31 - 34)81 - 89
(50 - 55)120 - 130
(75 - 81)187 - 197
(116 - 122)183 - 193
(114 - 120)108 - 118
(67 - 73)66 - 74
(41 - 46)27 - 31
(17 - 19)
Half throttle 40 - 44
(25 - 27)67 - 73
(42 - 45)102 - 110
(63 - 68)133 - 141
(83 - 88)106 - 114
(66 - 71)64 - 72
(40 - 45)33 - 39
(21 - 24)11 - 1 5
(7 - 9)

SERVICE DATA AND SPECIFICATIONS (SDS)
AT-371
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Revision: 2007 April2007 M35/M45
Vehicle Speed at Which Lock-Up Occurs/ReleasesNCS001RF
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 SpeedNCS001RG
Line PressureNCS001RH
A/T Fluid Temperature SensorNCS001RI
Engine model VQ35DE
Throttle positionVehicle 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 positionVehicle 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 positionVehicle 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 speedLine 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 10°C (32°F) 3.3 V 15 kΩ
20°C (68°F) 2.7 V 6.5 kΩ
80°C (176°F) 0.9 V 0.9 kΩ
ATF TEMP SE 20°C (32°F) 3.3 V 10 kΩ
20°C (68°F) 2.5 V 4 kΩ
80°C (176°F) 0.7 V 0.5 kΩ

ATC-2Revision: 2007 April2007 M35/M45 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 ............................ 68DIAGNOSIS 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

ATC-3
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Revision: 2007 April2007 M35/M45 INSPECTION FLOW .......................................... 110
Memory Function ................................................. . 111
INSPECTION FLOW ......................................... . 111
Ambient Sensor Circuit ......................................... 112
COMPONENT DESCRIPTION .......................... 112
AMBIENT TEMPERATURE INPUT PROCESS .. 112
DIAGNOSIS PROCEDURE FOR AMBIENT
SENSOR ............................................................ 112
COMPONENT INSPECTION ............................. 114
In-vehicle Sensor Circuit ....................................... 115
COMPONENT DESCRIPTION .......................... 115
DIAGNOSIS PROCEDURE FOR IN-VEHICLE
SENSOR ............................................................ 116
COMPONENT INSPECTION ............................. 117
Sunload Sensor Circuit ......................................... 118
COMPONENT DESCRIPTION .......................... 118
SUNLOAD INPUT PROCESS ........................... 118
DIAGNOSIS PROCEDURE FOR SUNLOAD
SENSOR ............................................................ 118
COMPONENT INSPECTION ............................ 120
Intake Sensor Circuit ............................................ 121
COMPONENT DESCRIPTION ......................... 121
DIAGNOSIS PROCEDURE FOR INTAKE SEN-
SOR .................................................................. 121
COMPONENT INSPECTION ............................ 122
CONTROLLER ....................................................... 123
Removal and Installation of Multifunction Switch . 123
REMOVAL ......................................................... 123
INSTALLATION ................................................. 123
AUTO AMP ............................................................. 124
Removal and Installation of Unified Meter and A/C
Auto Amp. ............................................................ 124
REMOVAL ......................................................... 124
INSTALLATION ................................................. 124
AMBIENT SENSOR ................................................ 125
Removal and Installation ...................................... 125
REMOVAL ......................................................... 125
INSTALLATION ................................................. 125
IN-VEHICLE SENSOR ............................................ 126
Removal and Installation ...................................... 126
REMOVAL ......................................................... 126
INSTALLATION ................................................. 126
SUNLOAD SENSOR .............................................. 127
Removal and Installation ...................................... 127
REMOVAL ......................................................... 127
INSTALLATION ................................................. 127
INTAKE SENSOR ................................................... 128
Removal and Installation ...................................... 128
REMOVAL ......................................................... 128
INSTALLATION ................................................. 128
BLOWER UNIT ....................................................... 129
Removal and Installation ...................................... 129
REMOVAL ......................................................... 129
INSTALLATION ................................................. 129
Disassembly and Assembly ................................. 130
BLOWER MOTOR .................................................. 131
Removal and Installation ...................................... 131
REMOVAL ......................................................... 131
INSTALLATION ................................................. 131INTAKE DOOR MOTOR .........................................132
Removal and Installation ......................................132
REMOVAL .........................................................132
INSTALLATION .................................................132
IN-CABIN MICROFILTER .......................................133
Removal and Installation ......................................133
FUNCTION ........................................................133
REPLACEMENT TIMING ..................................133
REPLACEMENT PROCEDURES .....................133
HEATER & COOLING UNIT ASSEMBLY ...............134
Removal and Installation ......................................134
REMOVAL .........................................................134
INSTALLATION .................................................135
Disassembly and Assembly ..................................137
MODE DOOR MOTOR ............................................139
Removal and Installation ......................................139
REMOVAL .........................................................139
INSTALLATION .................................................139
AIR MIX DOOR MOTOR .........................................140
Removal and Installation ......................................140
REMOVAL .........................................................140
INSTALLATION .................................................140
UPPER VENTILATOR DOOR MOTOR ..................141
Removal and Installation ......................................141
REMOVAL .........................................................141
INSTALLATION .................................................141
HEATER CORE .......................................................142
Removal and Installation ......................................142
REMOVAL .........................................................142
INSTALLATION .................................................142
DUCTS AND GRILLES ...........................................143
Removal and Installation ......................................143
COMPONENT LAYOUT ....................................143
REMOVAL .........................................................145
INSTALLATION .................................................149
REFRIGERANT LINES ...........................................150
HFC-134a (R-134a) Service Procedure ...............150
SETTING OF SERVICE TOOLS AND EQUIP-
MENT ................................................................150
Components .........................................................152
VQ35DE ............................................................152
VK45DE .............................................................153
Removal and Installation of Compressor ..............153
REMOVAL .........................................................153
INSTALLATION .................................................156
Check Disc to Pulley Clearance ...........................156
Removal and Installation of Low-pressure Flexible
Hose and Pipe ......................................................157
REMOVAL .........................................................157
INSTALLATION .................................................157
Removal and Installation of High-pressure Flexible
Hose .....................................................................158
REMOVAL .........................................................158
INSTALLATION .................................................159
Removal and Installation of High-pressure Pipe 1
(Engine Compartment) .........................................159
REMOVAL .........................................................159
INSTALLATION .................................................160
Removal and Installation of Low-pressure Pipe 1

ATC-4Revision: 2007 April2007 M35/M45 and High-pressure Pipe 2 .....................................161
REMOVAL .........................................................161
INSTALLATION ..................................................162
Removal and Installation of Liquid Tank ...............163
DISASSEMBLY AND ASSEMBLY .....................163
REMOVAL .........................................................163
INSTALLATION ..................................................164
Removal and Installation of Condenser ................164
REMOVAL .........................................................164
INSTALLATION ..................................................166
Removal and Installation of Refrigerant Pressure
Sensor ..................................................................166
REMOVAL .........................................................166
INSTALLATION ..................................................166
Removal and Installation of Evaporator ................167
REMOVAL .........................................................167
INSTALLATION ..................................................167Removal and Installation of Expansion Valve .......168
REMOVAL ..........................................................168
INSTALLATION ..................................................168
Checking for Refrigerant Leaks ............................169
Checking System for Leaks Using the Fluorescent
Leak Detector ........................................................169
Dye Injection .........................................................169
Electrical Leak Detector ........................................170
PRECAUTIONS FOR HANDLING LEAK
DETECTOR .......................................................170
CHECKING PROCEDURE ................................171
SERVICE DATA AND SPECIFICATIONS (SDS) ....173
Compressor ..........................................................173
Lubricant ...............................................................173
Refrigerant ............................................................173
Engine Idling Speed ..............................................173
Belt Tension ..........................................................173