2008 INFINITI FX35 Service Manual

sport mode power steering fluid overheating wiring diagram coolant reservoir radio

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INFINITI FX35 2008 Service Manual
ACS-66
< SERVICE INFORMATION >[ICC]
REMOVAL AND INSTALLATION
CAUTION:
Adjust the laser beam aiming every time
the ICC sensor is removed or installed.
ICC Steering SwitchINFOID:0000000001328864
Refer

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INFINITI FX35 2008 Service Manual
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AUTOMATIC TRANSMISSION
SERVICE INFORMATION .. ..........................5
INDEX FOR DTC .............................

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AUTOMATIC TRANSMISSION
SERVICE INFORMATION .. ..........................5
INDEX FOR DTC ............................................ .....5
Alphabetical Index ............................................... ......5
DTC No. Index ..........................................................5
PRECAUTIONS ...................................................7
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
7
Precaution for On Board Diagnosis (OBD) System
of A/T and Engine .....................................................
7
Precaution .................................................................7
Service Notice or Precaution .....................................8
PREPARATION ...................................................9
Special Service Tool ........................................... ......9
Commercial Service Tool ..........................................9
A/T FLUID ...........................................................11
Changing A/T Fluid ............................................. ....11
Checking A/T Fluid ..................................................11
A/T Fluid Cooler Cleaning .......................................13
A/T CONTROL SYSTEM ....................................16
Cross-Sectional View (2WD Models) .................. ....16
Cross-Sectional View (VQ35DE Models for AWD) ....17
Cross-Sectional View (VK45DE Models for AWD) ....18
Shift Mechanism .................................................. ....18
TCM Function ..........................................................29
CAN Communication ...............................................30
Input/Output Signal of TCM .....................................31
Line Pressure Control .............................................31
Shift Control ............................................................33
Lock-up Control .......................................................34
Engine Brake Control ..............................................35
Control Valve ...........................................................36
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......38
Introduction ......................................................... ....38
OBD-II Function for A/T System ..............................38
One or Two Trip Detection Logic of OBD-II ............38
OBD-II Diagnostic Trouble Code (DTC) .............. ....38
Malfunction Indicator Lamp (MIL) ............................40
TROUBLE DIAGNOSIS ....................................41
DTC Inspection Priority Chart ..................................41
Fail-Safe ..................................................................41
How to Perform Trouble Diagnosis for Quick and
Accurate Repair .......................................................
42
A/T Electrical Parts Location ...................................48
Circuit Diagram ........................................................49
Inspections Before Trouble Diagnosis .....................49
Road Test ................................................................53
Vehicle Speed at Which Gear Shifting Occurs ........58
Vehicle Speed at Which Lock-up Occurs/Releas-
es .............................................................................
58
Symptom Chart ........................................................59
TCM Input/Output Signal Reference Value .............83
CONSULT-III Function (TRANSMISSION) ..............84
Diagnosis Procedure without CONSULT-III ............91
DTC U1000 CAN COMMUNICATION LINE .....94
Description ........................................................... ....94
On Board Diagnosis Logic .......................................94
Possible Cause ........................................................94
DTC Confirmation Procedure ..................................94
Wiring Diagram - AT - CAN .....................................95
Diagnosis Procedure ...............................................96
DTC P0615 START SIGNAL CIRCUIT .............97
Description ...............................................................97
CONSULT-III Reference Value in Data Monitor
Mode ........................................................................
97
On Board Diagnosis Logic .......................................97
Possible Cause ........................................................97
DTC Confirmation Procedure ..................................97
Wiring Diagram - AT - STSIG ..................................98
Diagnosis Procedure ...............................................99
DTC P0700 TCM .............................................101
Description .............................................................101
On Board Diagnosis Logic .....................................101
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INFINITI FX35 2008 Service Manual
AT-2
Possible Cause ......................................................101
DTC Confirmation Procedure ................................101
Diagnosis Procedure ....................................

AT-2
Possible Cause ......................................................101
DTC Confirmation Procedure ................................101
Diagnosis Procedure .............................................101
DTC P0705 PARK/NEUTRAL POSITION
SWITCH ...........................................................
102
Description ........................................................... ..102
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
102
On Board Diagnosis Logic .....................................102
Possible Cause ......................................................102
DTC Confirmation Procedure ................................102
Wiring Diagram - AT - PNP/SW .............................103
Diagnosis Procedure .............................................103
DTC P0717 TURBINE REVOLUTION SEN-
SOR ..................................................................
106
Description ........................................................... ..106
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
106
On Board Diagnosis Logic .....................................106
Possible Cause ......................................................106
DTC Confirmation Procedure ................................106
Diagnosis Procedure .............................................106
DTC P0720 VEHICLE SPEED SENSOR A/T
(REVOLUTION SENSOR) ...............................
108
Description ........................................................... ..108
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
108
On Board Diagnosis Logic .....................................108
Possible Cause ......................................................108
DTC Confirmation Procedure ................................108
Wiring Diagram - AT - VSSA/T ..............................109
Diagnosis Procedure ........................................... ..110
DTC P0725 ENGINE SPEED SIGNAL ............112
Description ........................................................... ..112
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
112
On Board Diagnosis Logic .....................................112
Possible Cause ......................................................112
DTC Confirmation Procedure ................................112
Diagnosis Procedure .............................................112
DTC P0731 A/T 1ST GEAR FUNCTION .........114
Description ........................................................... ..114
On Board Diagnosis Logic .....................................114
Possible Cause ......................................................114
DTC Confirmation Procedure ................................114
Diagnosis Procedure .............................................115
DTC P0732 A/T 2ND GEAR FUNCTION .........116
Description ........................................................... ..116
On Board Diagnosis Logic .....................................116
Possible Cause ......................................................116
DTC Confirmation Procedure ................................116
Diagnosis Procedure .............................................117
DTC P0733 A/T 3RD GEAR FUNCTION .........118
Description ........................................................... .118
On Board Diagnosis Logic ....................................118
Possible Cause .....................................................118
DTC Confirmation Procedure ................................118
Diagnosis Procedure .............................................119
DTC P0734 A/T 4TH GEAR FUNCTION ..........120
Description ........................................................... .120
On Board Diagnosis Logic ....................................120
Possible Cause .....................................................120
DTC Confirmation Procedure ................................120
Diagnosis Procedure .............................................121
DTC P0735 A/T 5TH GEAR FUNCTION ..........122
Description ........................................................... .122
On Board Diagnosis Logic ....................................122
Possible Cause .....................................................122
DTC Confirmation Procedure ................................122
Diagnosis Procedure .............................................123
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE ..........................................
124
Description ........................................................... .124
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
124
On Board Diagnosis Logic ....................................124
Possible Cause .....................................................124
DTC Confirmation Procedure ................................124
Diagnosis Procedure .............................................124
DTC P0744 A/T TCC S/V FUNCTION (LOCK-
UP) ....................................................................
126
Description ........................................................... .126
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
126
On Board Diagnosis Logic ....................................126
Possible Cause .....................................................126
DTC Confirmation Procedure ................................126
Diagnosis Procedure .............................................126
DTC P0745 LINE PRESSURE SOLENOID
VALVE ..............................................................
128
Description ........................................................... .128
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
128
On Board Diagnosis Logic ....................................128
Possible Cause .....................................................128
DTC Confirmation Procedure ................................128
Diagnosis Procedure .............................................128
DTC P1705 THROTTLE POSITION SENSOR ..130
Description ........................................................... .130
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
130
On Board Diagnosis Logic ....................................130
Possible Cause .....................................................130
DTC Confirmation Procedure ................................130
Diagnosis Procedure .............................................130
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DTC P1710 A/T FLUID TEMPERATURE SEN-
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..
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Description ..........................................

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DTC P1710 A/T FLUID TEMPERATURE SEN-
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132
Description .......................................................... ..132
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
132
On Board Diagnosis Logic ....................................132
Possible Cause .....................................................132
DTC Confirmation Procedure ................................132
Wiring Diagram - AT - FTS ....................................133
Diagnosis Procedure .............................................133
Component Inspection ..........................................135
DTC P1721 VEHICLE SPEED SENSOR MTR ..137
Description .......................................................... ..137
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
137
On Board Diagnosis Logic ....................................137
Possible Cause .....................................................137
DTC Confirmation Procedure ................................137
Diagnosis Procedure .............................................137
DTC P1730 A/T INTERLOCK ..........................139
Description .......................................................... ..139
On Board Diagnosis Logic ....................................139
Possible Cause .....................................................139
DTC Confirmation Procedure ................................139
Judgement of A/T Interlock ...................................139
Diagnosis Procedure .............................................139
DTC P1731 A/T 1ST ENGINE BRAKING ........141
Description .......................................................... ..141
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
141
On Board Diagnosis Logic ....................................141
Possible Cause .....................................................141
DTC Confirmation Procedure ................................141
Diagnosis Procedure .............................................141
DTC P1752 INPUT CLUTCH SOLENOID
VALVE ..............................................................
143
Description .......................................................... ..143
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
143
On Board Diagnosis Logic ....................................143
Possible Cause .....................................................143
DTC Confirmation Procedure ................................143
Diagnosis Procedure .............................................143
DTC P1757 FRONT BRAKE SOLENOID
VALVE ..............................................................
145
Description .......................................................... ..145
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
145
On Board Diagnosis Logic ....................................145
Possible Cause .....................................................145
DTC Confirmation Procedure ................................145
Diagnosis Procedure .............................................145
DTC P1762 DIRECT CLUTCH SOLENOID
VALVE ..............................................................
147
Description ........................................................... ..147
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
147
On Board Diagnosis Logic .....................................147
Possible Cause ......................................................147
DTC Confirmation Procedure ................................147
Diagnosis Procedure .............................................147
DTC P1767 HIGH AND LOW REVERSE
CLUTCH SOLENOID VALVE .........................
149
Description .............................................................149
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
149
On Board Diagnosis Logic .....................................149
Possible Cause ......................................................149
DTC Confirmation Procedure ................................149
Diagnosis Procedure .............................................149
DTC P1772 LOW COAST BRAKE SOLENOID
VALVE .............................................................
151
Description .............................................................151
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
151
On Board Diagnosis Logic .....................................151
Possible Cause ......................................................151
DTC Confirmation Procedure ................................151
Diagnosis Procedure .............................................151
DTC P1774 LOW COAST BRAKE SOLENOID
VALVE FUNCTION .........................................
153
Description .............................................................153
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
153
On Board Diagnosis Logic .....................................153
Possible Cause ......................................................153
DTC Confirmation Procedure ................................153
Diagnosis Procedure .............................................153
DTC P1815 MANUAL MODE SWITCH ..........155
Description .............................................................155
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
155
On Board Diagnosis Logic .....................................155
Possible Cause ......................................................155
DTC Confirmation Procedure ................................155
Wiring Diagram - AT - MMSW ...............................156
Diagnosis Procedure .............................................158
Component Inspection ...........................................159
MAIN POWER SUPPLY AND GROUND CIR-
CUIT ................................................................
160
Wiring Diagram - AT - MAIN ..................................160
Diagnosis Procedure .............................................161
CLOSED THROTTLE POSITION AND WIDE
OPEN THROTTLE POSITION CIRCUIT .........
164
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
164
Diagnosis Procedure .............................................164
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AT-4
BRAKE SIGNAL CIRCUIT ..............................165
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
165
Diagnosis Pr

AT-4
BRAKE SIGNAL CIRCUIT ..............................165
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
165
Diagnosis Procedure .............................................165
A/T INDICATOR CIRCUIT ...............................166
Description ........................................................... ..166
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
166
Diagnosis Procedure .............................................166
TROUBLE DIAGNOSIS FOR SYMPTOMS .....167
Wiring Diagram - AT - NONDTC .......................... ..167
A/T Check Indicator Lamp Does Not Come On .....170
Engine Cannot Be Started in "P" or "N" Position ...170
In "P" Position, Vehicle Moves When Pushed .......171
In "N" Position, Vehicle Moves ..............................172
Large Shock ("N" to "D" Position) ..........................173
Vehicle Does Not Creep Backward in "R" Position ..175
Vehicle Does Not Creep Forward in "D" Position ..178
Vehicle Cannot Be Started from D1 .......................180
A/T Does Not Shift: D1→ D2 ................................ ..182
A/T Does Not Shift: D2→ D3 ................................ ..184
A/T Does Not Shift: D3→ D4 ................................ ..186
A/T Does Not Shift: D4→ D5 ................................ ..188
A/T Does Not Lock-up ......................................... ..190
A/T Does Not Hold Lock-up Condition ...................192
Lock-up Is Not Released .......................................194
Engine Speed Does Not Return to Idle .................194
Cannot Be Changed to Manual Mode ...................195
A/T Does Not Shift: 5th Gear → 4th Gear ........... ..196
A/T Does Not Shift: 4th Gear → 3rd Gear ........... ..197
A/T Does Not Shift: 3rd Gear → 2nd Gear .......... ..199
A/T Does Not Shift: 2nd Gear → 1st Gear ........... ..201
Vehicle Does Not Decelerate by Engine Brake ... ..202
SHIFT CONTROL SYSTEM ............................205
Control Device Removal and Installation ............. ..205
Control Rod Removal and Installation ...................206
Adjustment of A/T Position ....................................207
Checking of A/T Position .......................................207
A/T SHIFT LOCK SYSTEM .............................208
Description ........................................................... ..208
Shift Lock System Electrical Parts Location ..........208
Wiring Diagram - AT - SHIFT .................................209
Diagnosis Procedure .............................................209
KEY INTERLOCK CABLE ...............................212
Component .......................................................... ..212
Removal and Installation .......................................212
ON-VEHICLE SERVICE ...................................215
Control Valve with TCM and A/T Fluid Tempera-
ture Sensor 2 ....................................................... .
215
Parking Component (2WD Models Only) ..............226
Rear Oil Seal .........................................................233
Revolution Sensor Component (2WD Models
Only) .....................................................................
233
AIR BREATHER HOSE ....................................239
Removal and Installation ...................................... .239
TRANSMISSION ASSEMBLY ..........................241
Removal and Installation (2WD Models) .............. .241
Removal and Installation (AWD Models) ..............243
OVERHAUL ......................................................249
Component .......................................................... .249
Oil Channel ...........................................................261
Location of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ......................... .
264
DISASSEMBLY .............................................. ..267
Disassembly ......................................................... .267
REPAIR FOR COMPONENT PARTS ..............285
Oil Pump .............................................................. .285
Front Sun Gear, 3rd One-Way Clutch ...................287
Front Carrier, Input Clutch, Rear Internal Gear .....289
Mid Sun Gear, Rear Sun Gear, High and Low Re-
verse Clutch Hub ..................................................
295
High and Low Reverse Clutch ..............................301
Direct Clutch .........................................................303
ASSEMBLY .................................................... ..306
Assembly (1) ........................................................ .306
Adjustment ............................................................320
Assembly (2) .........................................................323
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
330
General Specification ........................................... .330
Vehicle Speed at Which Gear Shifting Occurs .....330
Vehicle Speed at Which Lock-up Occurs/Releas-
es ..........................................................................
331
Stall Speed ............................................................331
Line Pressure ........................................................331
A/T Fluid Temperature Sensor ..............................332
Turbine Revolution Sensor ...................................332
Vehicle Speed Sensor A/T (Revolution Sensor) ...332
Reverse Brake ......................................................332
Total End Play .......................................................332
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INFINITI FX35 2008 Service Manual
INDEX FOR DTCAT-5
< SERVICE INFORMATION >
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SERVICE INFORMATION
INDEX FOR DTC
Alphabetical IndexINFOID:0000000001327120
NOTE:
If “DTC U1000” is displayed with other

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INFINITI FX35 2008 Service Manual
AT-6
< SERVICE INFORMATION >
INDEX FOR DTC
*1: These numbers are prescribed by SAE J2012.
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.DTC
Items
(CONSULT-I

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INFINITI FX35 2008 Service Manual
PRECAUTIONSAT-7
< SERVICE INFORMATION >
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:000000000161292

PRECAUTIONSAT-7
< SERVICE INFORMATION >
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612925
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
To avoid rendering the SRS inoper ative, 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 NISSAN/INFINITI dealer.
Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
Precaution for On Board Diagnosis (OBD) System of A/T and EngineINFOID:0000000001327123
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
Be sure to turn the ignition sw itch OFF and disconnect the battery cable from the negative terminal
before any repair or inspection work. The open/s hort circuit of related switches, sensors, solenoid
valves, etc. Will cause the MIL to light up.
Be sure to connect and lock the connectors secure ly after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. May cause the MIL to li ght up due to a short circuit.
Be sure to connect rubber tubes properly afte r work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EVAP system or fuel injection system, etc.
Be sure to erase the unnecessary malfunction informa tion (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
PrecautionINFOID:0000000001327124
Before connecting or disco nnecting the A/T assembly har-
ness connector, turn ignition switch OFF and disconnect the
battery cable from the negative terminal. Because battery
voltage is applied to TCM even if ignition switch is turned
OFF.
SEF289H
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