2010 INFINITI QX56 Driveline

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QUICK REFERENCE INDEX
AGENERAL INFORMATIONGIGeneral Information
BENGINEEMEngine Mechanical
LUEngine Lubrication System
COEngine Cooling System
ECEngine Control System
FLFuel System
EXExhaust System
STRStarting System
ACCAccelerator Control System
CHYBRIDHBCHybrid Control System
HBBHybrid Battery System
HBRHybrid Brake System
DTRANSMISSION & DRIVE-
LINETMTransaxle & Transmission
DLNDriveline
FAXFront Axle
RAXRear Axle
ESUSPENSIONFSUFront Suspension
RSURear Suspension
SCSSuspension Control System
WTRoad Wheels & Tires
FBRAKESBRBrake System
PBParking Brake System
BRCBrake Control System
GSTEERINGSTSteering System
STCSteering Control System
HRESTRAINTSSBSeat Belt
SBCSeat Belt Control System
SRSRS Airbag
SRCSRS Airbag Control System
IVENTILATION, HEATER &
AIR CONDITIONERVTLVentilation System
HAHeater & Air Conditioning System
HACHeater & Air Conditioning Control System
JBODY INTERIORINTInterior
IPInstrument Panel
SESeat
ADPAutomatic Drive Postioner
APAdjustable Pedal
KBODY EXTERIOR,
DOORS, ROOF & VEHICLE
SECURITYDLKDoor & Lock
SECSecurity Control System
GWGlass & Window System
PWCPower Window Control System
RFRoof
EXTExterior
BRMBody Repair Manual
LDRIVER CONTROLSMIRMirrors
EXLExterior Lighting System
INLInterior Lighting System
WWWiper & Washer
DEFDefogger
HRNHorn
MELECTRICAL & POWER
CONTROLPWOPower Outlet
BCSBody Control System
LANLAN System
PCSPower Control System
CHGCharging System
PGPower Supply, Ground & Circuit Elements
NDRIVER INFORMATION &
MULTIMEDIAMWIMeter, Warning Lamp & Indicator
WCSWarning Chime System
SNSonar System
AVAudio, Visual & Navigation System
OCRUISE CONTROLCCSCruise Control System
PMAINTENANCEMAMaintenance
All rights reserved. No part
of this Service Manual may
be reproduced or stored in a
retrieval system, or transmit-
ted in any form, or by any
means, electronic, mechani-
cal, photo-copying, record-
ing or otherwise, without the
prior written permission of
Nissan North America, Inc.
Edition: April 2009
Revision: April 2009
Publication No. SM0
E-1J60U0

DLN-1
TRANSMISSION & DRIVELINE
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SECTION DLN
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DLN
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CONTENTS
DRIVELINE
ATX14B
BASIC INSPECTION ....... .............................
6
DIAGNOSIS AND REPAIR WORKFLOW ..... .....6
Work Flow ........................................................... ......6
Preliminary Check .....................................................7
FUNCTION DIAGNOSIS ..............................10
4WD SYSTEM ................................................ ....10
System Diagram .................................................. ....10
System Description .................................................11
Component Parts Location ......................................16
CAN Communication ...............................................17
DIAGNOSIS SYSTEM (TRANSFER CON-
TROL UNIT) ........................................................
18
CONSULT-III Function (ALL MODE AWD/4WD) ....18
COMPONENT DIAGNOSIS .........................22
P1811 POWER SUPPLY CIRCUIT FOR
TRANSFER CONTROL UNIT ........................ ....
22
Description .......................................................... ....22
DTC Logic ...............................................................22
Diagnosis Procedure ...............................................22
Component Inspection ............................................23
P1802 – P1804, P1809 TRANSFER CON-
TROL UNIT .........................................................
25
Description ..............................................................25
DTC Logic ...............................................................25
Diagnosis Procedure ...............................................25
P1807 VEHICLE SPEED SENSOR (A/T) ..........27
Description .......................................................... ....27
DTC Logic ...............................................................27
Diagnosis Procedure ...............................................27
P1808 VEHICLE SPEED SENSOR (ABS) .........28
Description .......................................................... ....28
DTC Logic ............................................................ ....28
Diagnosis Procedure ...............................................28
P1810 NEUTRAL-4LO SWITCH .......................29
Description ...............................................................29
DTC Logic ................................................................29
Diagnosis Procedure ...............................................29
Component Inspection .............................................31
P1813 4WD SHIFT SWITCH .............................32
Description ...............................................................32
DTC Logic ................................................................32
Diagnosis Procedure ...............................................32
Component Inspection .............................................34
P1814 WAIT DETECTION SWITCH .................36
Description ...............................................................36
DTC Logic ................................................................36
Diagnosis Procedure ...............................................36
Component Inspection .............................................38
P1816 TRANSMISSION RANGE SWITCH .......39
Description ...............................................................39
DTC Logic ................................................................39
Diagnosis Procedure ...............................................39
P1817 ACTUATOR MOTOR .............................40
Description ...............................................................40
DTC Logic ................................................................40
Diagnosis Procedure ...............................................40
Component Inspection .............................................44
P1818 ACTUATOR POSITION SWITCH ..........46
Description ...............................................................46
DTC Logic ................................................................46
Diagnosis Procedure ...............................................46
Component Inspection .............................................48
P1819 TRANSFER CONTROL DEVICE ...........49
Description ...............................................................49
DTC Logic ................................................................49
Diagnosis Procedure ...........................................
....49
Revision: April 20092010 QX56

FAX-1
TRANSMISSION & DRIVELINE
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SECTION FA X
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CONTENTS
FRONT AXLE
PRECAUTION ....... ........................................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Precaution .................................................................3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
SYMPTOM DIAGNOSIS ...............................5
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ .....
5
NVH Troubleshooting Chart ................................ ......5
ON-VEHICLE MAINTENANCE .....................6
WHEEL HUB ......................................................6
On-Vehicle Inspection and Service ..................... .....6
REMOVAL AND INSTALLATION ................7
WHEEL HUB ......................................................7
Removal and Installation ..................................... .....7
DRIVE SHAFT ....................................................9
Removal and Installation ..........................................9
DISASSEMBLY AND ASSEMBLY ..............11
DRIVE SHAFT ...................................................11
Disassembly and Assembly ................................. ....11
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .......................................... ...
16
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
16
Wheel Bearing ..................................................... ....16
Drive Shaft ...............................................................16
Boot Bands ..............................................................16
Revision: April 20092010 QX56

RAX-1
TRANSMISSION & DRIVELINE
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SECTION RAX
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CONTENTS
REAR AXLE
PRECAUTION ....... ........................................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Precaution .................................................................3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
SYMPTOM DIAGNOSIS ...............................5
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ .....
5
NVH Troubleshooting Chart ................................ ......5
ON-VEHICLE MAINTENANCE .....................6
WHEEL HUB .................................................. .....6
On-Vehicle Inspection and Service ..................... ......6
ON-VEHICLE REPAIR ..................................7
REAR DRIVE SHAFT .........................................7
Component .......................................................... .....7
REMOVAL AND INSTALLATION ................8
WHEEL HUB ......................................................8
Removal and Installation ..................................... .....8
REAR DRIVE SHAFT ........................................10
Removal and Installation .........................................10
DISASSEMBLY AND ASSEMBLY ..............11
REAR DRIVE SHAFT ........................................11
Disassembly and Assembly ................................. ....11
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .......................................... ...
16
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
16
Wheel Bearing ..................................................... ....16
Drive Shaft ...............................................................16
Boot Bands ..............................................................16
Revision: April 20092010 QX56

TM-1
TRANSMISSION & DRIVELINE
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SECTION TM
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CONTENTS
TRANSAXLE & TRANSMISSION
BASIC INSPECTION ....... .............................5
DIAGNOSIS AND REPAIR WORKFLOW ..... .....5
Work Flow ........................................................... ......5
Diagnostic Work Sheet ..............................................6
FUNCTION DIAGNOSIS ...............................8
A/T CONTROL SYSTEM ................................ .....8
Cross-Sectional View (2WD models) .................. ......8
Cross-Sectional View (4WD models) ........................9
Shift Mechanism ........................................................9
TCM Function ..........................................................20
CAN Communication ...............................................21
Input/Output Signal of TCM .....................................22
Line Pressure Control .............................................22
Shift Control ........................................................ ....24
Lock-up Control .......................................................25
Engine Brake Control ..............................................26
Control Valve ...........................................................26
Component Parts Location ......................................28
A/T SHIFT LOCK SYSTEM ............................ ....29
System Description ............................................. ....29
Component Parts Location ......................................29
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......30
Introduction ......................................................... ....30
OBD-II Function for A/T System ..............................30
One or Two Trip Detection Logic of OBD-II ............30
OBD-II Diagnostic Trouble Code (DTC) ..................30
Malfunction Indicator Lamp (MIL) ............................31
DIAGNOSIS SYSTEM (TCM) .............................32
CONSULT-III Function (TRANSMISSION) ......... ....32
Diagnosis Procedure without CONSULT-III ........ ....37
COMPONENT DIAGNOSIS .........................40
U1000 CAN COMM CI RCUIT .............................40
Description .......................................................... ....40
On Board Diagnosis Logic ......................................40
Possible Cause .................................................... ....40
DTC Confirmation Procedure ..................................40
Diagnosis Procedure ...............................................40
P0615 STARTER RELAY .................................41
Description ...............................................................41
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ....
41
On Board Diagnosis Logic .......................................41
Possible Cause ........................................................41
DTC Confirmation Procedure ..................................41
Diagnosis Procedure ...............................................41
P0700 TRANSMISSION CONTROL .................44
Description ...............................................................44
On Board Diagnosis Logic .......................................44
Possible Cause ........................................................44
DTC Confirmation Procedure ..................................44
Diagnosis Procedure ...............................................44
P0705 TRANSMISSION RANGE SWITCH A ...45
Description ...............................................................45
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ....
45
On Board Diagnosis Logic .......................................45
Possible Cause ........................................................45
DTC Confirmation Procedure ..................................45
Diagnosis Procedure ...............................................45
P0717 INPUT SPEED SENSOR A ....................48
Description ...............................................................48
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ....
48
On Board Diagnosis Logic .......................................48
Possible Cause ........................................................48
DTC Confirmation Procedure ..................................48
Diagnosis Procedure ...............................................48
P0720 OUTPUT SPEED SENSOR ...................50
Description ...............................................................50
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ....
50
Revision: April 20092010 QX56