All rights reserved. No part
of this Service Manual may
be reproduced or stored in a
retrieval system, or transmitted in any form, or by any
means, electronic, mechanical, photo-copying, recording or otherwise, without the
prior written permission of
Nissan North America, Inc.
QUICK REFERENCE INDEX
A
GENERAL INFORMATION
B ENGINE
C HYBRID
D TRANSMISSION & DRIVE-
LINE
E SUSPENSION
F BRAKES
G STEERING
H RESTRAINTS
I VENTILATION, HEATER &
AIR CONDITIONER
J BODY INTERIOR
K BODY EXTERIOR,
DOORS, ROOF & VEHICLE
SECURITY
L DRIVER CONTROLS
M ELECTRICAL & POWER
CONTROL
N DRIVER INFORMATION &
MULTIMEDIA
O CRUISE CONTROL
P MAINTENANCE
GI
General Information
EM
Engine Mechanical
LU
Engine Lubrication System
CO
Engine Cooling System
EC
Engine Control System
FL
Fuel System
EX
Exhaust System
STR
Starting System
ACC
Accelerator Control System
HBC
Hybrid Control System
HBB
Hybrid Battery System
HBR
Hybrid Brake System
TM
Transaxle & Transmission
DLN
Driveline
FAX
Front Axle
RAX
Rear Axle
FSU
Front Suspension
RSU
Rear Suspension
SCS
Suspension Control System
WT
Road Wheels & Tires
BR
Brake System
PB
Parking Brake System
BRC
Brake Control System
ST
Steering System
STC
Steering Control System
SB
Seat Belt
SBC
Seat Belt Control System
SR
SRS Airbag
SRC
SRS Airbag Control System
VTL
Ventilation System
HA
Heater & Air Conditioning System
HAC
Heater & Air Conditioning Control System
INT
Interior
IP
Instrument Panel
SE
Seat
ADP
Automatic Drive Postioner
AP
Adjustable Pedal
DLK
Door & Lock
SEC
Security Control System
GW
Glass & Window System
PWC
Power Window Control System
RF
Roof
EXT
Exterior
BRM
Body Repair Manual
MIR
Mirrors
EXL
Exterior Lighting System
INL
Interior Lighting System
WW
Wiper & Washer
DEF
Defogger
HRN
Horn
PWO
Power Outlet
BCS
Body Control System
LAN
LAN System
PCS
Power Control System
CHG
Charging System
PG
Power Supply, Ground & Circuit Elements
MWI
Meter, Warning Lamp & Indicator
WCS
Warning Chime System
SN
Sonar System
AV
Audio, Visual & Navigation System
CCS
Cruise Control System
MA
Maintenance
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Page 2
FOREWORD
This manual contains maintenance and repair procedure for the 2009
INFINITI QX56.
In order to assure your safety and the efficient functioning of the vehicle,
this manual should be read thoroughly. It is especially important that the
PRECAUTIONS in the GI section be completely understood before starting
any repair task.
All information in this manual is based on the latest product information
at the time of publication. The right is reserved to make changes in specifications and methods at any time without notice.
IMPORTANT SAFETY NOTICE
The proper performance of service is essential for both the safety of
the technician and the efficient functioning of the vehicle.
The service methods in this Service Manual are described in such a
manner that the service may be performed safely and accurately.
Service varies with the procedures used, the skills of the technician
and the tools and parts available. Accordingly, anyone using service
procedures, tools or parts which are not specifically recommended
by NISSAN must first be completely satisfied that neither personal
safety nor the vehicle’s safety will be jeopardized by the service
method selected.
Page 3
PLEASE HELP MAKE THIS SERVICE MANUAL BETTER!
INFINITI
Your comments are important to INFINITI and will help us to improve our Service Manuals.
Use this form to report any issues or comments you may have regarding our Service Manuals.
Please print this form and type or write your comments below. Mail or fax to:
SERVICE MANUAL:Model:Year:
PUBLICATION NO. (Refer to Quick Reference Index):
Please describe any Service Manual issues or problems in detail:
Page number(s)
R
Nissan North America, Inc.
Technical Service Information
39001 Sunrise Drive, P.O. Box 9200
Farmington Hills, MI USA 48331
FAX: (248) 488-3910
Note: Please include a copy of each page, marked with your comments.
Are the trouble diagnosis procedures logical and easy to use? (circle your answer)YESNO
If no, what page number(s)?
Please describe the issue or problem in detail:
Is the organization of the manual clear and easy to follow? (circle your answer)YESNO
Please comment:
What information should be included in INFINITI Service Manuals to better support you in servicing or
repairing customer vehicles?
Note: Please include a copy of each page, marked with your comments.
DATE:YOUR NAME:POSITION:
DEALER:DEALER NO.:ADDRESS:
CITY:STATE/PROV./COUNTRY:ZIP/POSTAL CODE:
Page 4
QUICK REFERNCE CHART: QX56
2009
QUICK REFERNCE CHART: QX56
Engine Tune-up DataINFOID:0000000005987162
GENERAL SPECIFICATIONS
Cylinder arrangementV-8
3
, psi)/rpm
(in3)
Compression2
Oil1
Standard1,520 (15.5, 220)/200
Minimum1,324 (13.5, 192)/200
Differential limit between cylinders98 (1.0, 14)/200
Displacement cm
Bore and stroke mm (in)98 x 92 (3.86 x 3.62)
Valve arrangementDOHC
Firing order1-8-7-3-6-5-4-2
Number of piston rings
Number of main bearings5
Compression ratio9.8:1
Compression pressure
kPa (kg/cm
2
5,552 (338.80)
Cylinder number
Valve timing
abcde f
244°232°-8°60°10°54°
DRIVE BELTS
SEM957C
PBIC0187E
Unit: degree
Tension of drive beltsAuto adjustment by auto tensioner
SPARK PLUG
Page 5
QUICK REFERNCE CHART: QX56
2010
Unit: mm (in)
MakeNGK
ModelStandard model
Standard type*DILFR5A-11
Gap (Nominal)1.1 (0.043)
*: Always check with the Parts Department for the latest parts information
Front Wheel Alignment (Unladen*1)INFOID:0000000005987161
Cross camber0° 45′ (0.75°) or less 0° 45′ (0.75°) or less
Minimum3° 15′ (3.25°)2° 45′ (2.75°)
Nominal4° 0′ (4.00°)3° 30′ (3.50°)
Maximum4° 45′ (4.75°)4° 15′ (4.25°)
Cross caster0° 45′
(0.75°) or less0° 45′ (0.75°) or less
13° 32′ (13.53°)13° 13′ (13.22°)
SFA234AC
Minimum1.8 mm (0.07 in)1.8 mm (0.07 in)
Distance (A − B)
Total toe-in
Angle (left side or right side)
Degree minute (decimal degree)
Inside
Wheel turning angle
(full turn)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Target value 37° 31′ (37.52°)
*3: Target value 33° 59′ (33.98°)
*4: Target value 37° 44′ (37.73°)
*5: Target value 33° 29′ (33.48°)
*6 Some vehicles may not be equipped with straight (non-adjustable) lower link bolts and washers. In order to adjust camber and caster
on these vehicles, first replace the lower link bolts and washers with adjustable (cam) bolts and washers
Degree minute (decimal degree)
Outside
Degree minute (decimal degree)
Nominal2.8 mm (0.11 in)2.8 mm (0.11 in)
Maximum3.8 mm (0.15 in)3.8 mm (0.15 in)
Minimum0° 3′ (0.05°)0° 3′ (0.05°)
Nominal0° 5′ (0.08°)0° 5′ (0.08°)
Maximum0° 7′ (0.12°)0° 7′ (0.12°)
34° 31′ – 38° 31′ *2
(34.52° – 38.52°)
30° 59′ – 34° 59′ *3
(30.98° – 34.98°)
34° 44′ – 38° 44′ *4
(34.73° – 38.73
30° 29′ – 34° 29′ *5
(30.48° – 34.48°)
°)
Page 6
QUICK REFERNCE CHART: QX56
2009
Rear Wheel Alignment (Unladen
Applied modelWithout air levelingWith air leveling
Camber
Degree minute (decimal degree)
Toe-in (left side or right side)
AL - BL or AR - BR
mm (in)
Distance
To e- i n
Angle
*1: Fuel tank, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
:Front
Cross toe
(AL - BL) - (AR - BR)
mm (in)
Toe angle (left side or right side)
Degree minute
(Decimal degree)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
920
(36.22)
917
(36.10)
Air leveling*
2
937
(36.89)
937
(36.89)
Page 7
QUICK REFERNCE CHART: QX56
2010
*2: Verify the vehicle height. If vehicle height is not within ± 10 mm (0.39 in) of the specification, perform the control unit initialization procedure.
Brake SpecificationsINFOID:0000000005987157
Unit: mm (in)
Front brakeBrake modelAD41VA
Rotor outer diameter × thickness350 x 30 (13.78 x 1.181)
Pad Length × width × thickness151.6 x 56.5 x 12.0 (5.97 x 2.22 x 0.476)
Cylinder bore diameter50.8 (2.00)
Rear brake Brake modelAD14VE
Rotor outer diameter × thickness320 x 14 (12.60 x 0.551)
Pad Length × width × thickness83.0 x 33.0 x 12.0 (3.268 x 1.299 x 0.472)
Cylinder bore diameter48 (1.89)
Control valveValve modelElectric brake force distribution
Brake boosterBooster modelC215T
Diaphragm diameter215 (8.46)
Brake PedalINFOID:0000000005987158
Unit: mm (in)
ALFIA0149ZZ
Pedal free height (H) with pedal in forward most position182.3 - 192.3 (7.18 - 7.57)
Pedal travel (T)153.3 (6.04)
Stop lamp switch and ASCD cancel switch threaded end to brake pedal bracket gap0.74 - 1.96 (0.029 - 0.077)
CAUTION:
When equipped with adjustable pedal, the pedal must be in the forward most position (closest to the floor) for pedal height
adjustment.
Page 8
QUICK REFERNCE CHART: QX56
2009
Front Disc Brake
Brake modelAD41VA
Brake pad
Disc rotor
Standard thickness (new)12.0 (0.476)
Repair limit thickness1.0 (0.039)
Standard thickness (new)30 (1.181)
Repair limit thickness28.5 (1.122)
Maximum uneven wear (measured at 8 positions)0.015 (0.0006)
Runout limit (with it attached to the vehicle)0.03 (0.001)
INFOID:0000000005987155
Unit: mm (in)
Rear Disc BrakeINFOID:0000000005987156
Unit: mm (in)
Brake modelAD14VE
Brake pad
Disc rotor
Standard thickness (new)12.0 (0.472)
Repair limit thickness1.0 (0.039)
Standard thickness (new)14.0 (0.551)
Repair limit thickness12.5 (0.492)
Maximum uneven wear (measured at 8 positions)0.015 (0.0006)
Runout limit (with it attached to the vehicle)0.05 (0.002)
Fluids and LubricantsINFOID:0000000005987154
Description
Fuel
Engine oil
Drain and refill
Dry engine (engine overhaul)
Cooling system
Automatic transmission fluid (ATF)
Rear differential gear oil
Transfer fluid
Front differential gear oil
Power steering fluid (PSF)
Brake fluid———
Brake grease———
Multi-purpose grease———
Windshield washer fluid
Air conditioning system refrigerant1.08 ± 0.05 kg2.38 ± 0.11 lb2.38 ± 0.11 lb
Air conditioning system oil
With oil filter change
Without oil filter change
With reservoir
at MAX level
MetricUS measureImp measure
105.8
6.5
6.2
7.6
14.4
10.6
1.75
3.0
1.6
1.0
4.5
290 m
Capacity (Approximate)
28 gal23 1/4 gal
6 7/8 qt5 3/4 qt
6 1/2 qt5 1/2 qt
8 qt6 3/4 qt
15 1/4 qt12 5/8 qt
11 1/4 qt9 3/8 qt
3 3/4 pt3 1/8 pt
3 1/8 qt2 5/8 qt
3 3/8 pt2 7/8 pt
1 1/8 qt7/8 qt
4 3/4 qt4 qt
9.8 fl oz10.2 fl oz
Page 9
GENERAL INFORMATION
GI
B
SECTION GI
CONTENTS
HOW TO USE THIS MANUAL ...................... 3
HOW TO USE THIS MANUAL ............................ 3
This volume explains “Removal, Disassembly, Installation, Inspection and Adjustment” and “Trouble Diagnoses”.
Term sINFOID:0000000003771174
• The captions WARNING and CAUTION warn you of steps that must be followed to prevent personal injury
and/or damage to some part of the vehicle.
WARNING indicates the possibility of personal injury if instructions are not followed.
CAUTION indicates the possibility of component damage if instructions are not followed.
BOLD TYPED STATEMENTS except WARNING and CAUTION give you helpful information.
Standard value: Tolerance at inspection and adjustment.
Limit value: The maximum or minimum limit value that should not be exceeded at inspection and adjustment.
UnitsINFOID:0000000003771175
• The UNITS given in this manual are primarily expressed as the SI UNIT (International System of Unit), and
alternatively expressed in the metric system and in the yard/pound system.
Also with regard to tightening torque of bolts and nuts, there are descriptions both about range and about the
standard tightening torque.
• A QUICK REFERENCE INDEX, a black tab (e.g. ) is provided on the first page. You can quickly find the
first page of each section by matching it to the section's black tab.
• THE CONTENTS are listed on the first page of each section.
• THE TITLE is indicated on the upper portion of each page and shows the part or system.
• THE PAGE NUMBER of each section consists of two or three letters which designate the particular section
and a number (e.g. “BR-5”).
• THE SMALL ILLUSTRATIONS show the important steps such as inspection, use of special tools, knacks of
work and hidden or tricky steps which are not shown in the previous large illustrations.
Assembly, inspection and adjustment procedures for the complicated units such as the automatic transaxle
or transmission, etc. are presented in a step-by-step format where necessary.
J
K
L
M
N
O
P
Revision: December 20092009 QX56
GI-3
Page 12
< HOW TO USE THIS MANUAL >
HOW TO USE THIS MANUAL
Relation between Illustrations and Descriptions
The following sample explains the relationship between the part description in an illustration, the part name in
the text and the service procedures.
INFOID:0000000003771177
SAIA0519E
ComponentsINFOID:0000000003771178
• THE LARGE ILLUSTRATIONS are exploded views (see the following) and contain tightening torques, lubrication points, section number of the PARTS CATALOG (e.g. SEC. 440) and other information necessary to
perform repairs.
The illustrations should be used in reference to service matters only. When ordering parts, refer to the appropriate PARTS CATALOG.
Always check with the PARTS DEPARTMENT for the latest parts information.
Components shown in an illustration may be identified by a circled number. When this style of illustration is
used, the text description of the components will follow the illustration.
Revision: December 20092009 QX56
GI-4
Page 13
< HOW TO USE THIS MANUAL >
HOW TO USE THIS MANUAL
GI
B
C
D
E
1.Union bolt2.Copper washer3.Brake hose
4.Cap5.Bleed valve6.Sliding pin bolt
7.Piston seal8.Piston9.Piston boot
10. Cylinder body11. Sliding pin12. Torque member mounting bolt
1: PBC (Poly Butyl Cuprysil) grease
or silicone-based grease
Refer to GI section for additional symbol definitions.
2: Rubber grease: Brake fluid
SYMBOLS
SFIA2959E
F
G
H
I
J
K
L
M
SAIA0749E
Revision: December 20092009 QX56
GI-5
N
O
P
Page 14
HOW TO FOLLOW TROUBLE DIAGNOSES
< HOW TO USE THIS MANUAL >
HOW TO FOLLOW TROUBLE DIAGNOSES
DescriptionINFOID:0000000003771179
NOTICE:
Trouble diagnoses indicate work procedures required to diagnose problems effectively. Observe the following
instructions before diagnosing.
• Before performing trouble diagnoses, read the “Work Flow” in each section.
• After repairs, re-check that the problem has been completely eliminated.
• Refer to Component Parts and Harness Connector Location for the Systems described in each section for
identification/location of components and harness connectors.
• When checking circuit continuity, ignition switch should be OFF.
• Refer to the Circuit Diagram for quick pinpoint check.
If you need to check circuit continuity between harness connectors in more detail, such as when a sub-harness is used, refer to Wiring Diagram in each individual section and Harness Layout in PG section for identification of harness connectors.
• Before checking voltage at connectors, check battery voltage.
• After accomplishing the Diagnosis Procedures and Electrical Components Inspection, make sure that all
harness connectors are reconnected as they were.
How to Follow Test Groups in Trouble DiagnosisINFOID:0000000003771180
JPAIA0021GB
1.Test group number and test group title
• Test group number and test group title are shown in the upper portion of each test group.
2.Work and diagnosis procedure
• Start to diagnose a problem using procedures indicated in enclosed test groups.
3.Questions and results
• Questions and required results are indicated in test group.
4.Action
• Next action for each test group is indicated based on result of each question.
Revision: December 20092009 QX56
GI-6
Page 15
HOW TO FOLLOW TROUBLE DIAGNOSES
< HOW TO USE THIS MANUAL >
Key to Symbols Signifying Measurements or ProceduresINFOID:000000 0003771181
GI
B
C
D
E
F
G
SAIA1539E
H
I
J
K
L
M
N
O
Revision: December 20092009 QX56
GI-7
P
Page 16
HOW TO FOLLOW TROUBLE DIAGNOSES
< HOW TO USE THIS MANUAL >
SAIA1540E
Revision: December 20092009 QX56
GI-8
Page 17
HOW TO READ WIRING DIAGRAMS
< HOW TO USE THIS MANUAL >
HOW TO READ WIRING DIAGRAMS
Connector symbolsINFOID:0000000003771182
Most of connector symbols in wiring diagrams are shown from the terminal side.
• Connector symbols shown from the terminal side are enclosed by
a single line and followed by the direction mark.
• Connector symbols shown from the harness side are enclosed by
a double line and followed by the direction mark.
• Certain systems and components, especially those related to
OBD, may use a new style slide-locking type harness connector.
For description and how to disconnect, refer to PG section,
“Description”, “HARNESS CONNECTOR”.
GI
B
C
D
E
F
G
H
• Male and female terminals
Connector guides for male terminals are shown in black and
female terminals in white in wiring diagrams.
SAIA0257E
SGI363
I
J
K
L
M
N
O
P
Revision: December 20092009 QX56
GI-9
Page 18
HOW TO READ WIRING DIAGRAMS
B
< HOW TO USE THIS MANUAL >
Sample/wiring diagram -example-
• For detail, refer to following GI-11, "Description".
INFOID:0000000003771183
JCAWA0005G
Revision: December 20092009 QX56
GI-10
Page 19
HOW TO READ WIRING DIAGRAMS
< HOW TO USE THIS MANUAL >
DescriptionINFOID:0000000003771184
NumberItemDescription
1Power supply• This means the power supply of fusible link or fuse.
2Fusible link• “X” means the fusible link.
3
4Fuse• “/” means the fuse.
5
6Optional splice• The open circle shows that the splice is optional depending on vehicle application.
7Connector number
Number of fusible link/
fuse
Current rating of fusible link/fuse
• This means the number of fusible link or fuse location.
• This means the current rating of the fusible link or fuse.
• The letter shows which harness the connector is located in.
• Example “M”: main harness. For detail and to locate the connector, refer to PG-64, "
trical Units Location", PG-41, "Harness Layout".
Elec-
GI
B
C
D
E
8Splice
9Page crossing• This circuit continues to an adjacent page.
10Option abbreviation
11Relay• This shows an internal representation of the relay.
12Option description• This shows a description of the option abbreviation used on the page.
13Switch
14Circuit (Wiring)• This means the wiring.
15System branch• This shows that the circuit is branched to other systems.
16Shielded line• The line enclosed by broken line circle shows shield wire.
17Component name• This shows the name of a component.
18Ground (GND)• This shows the ground connection.
19Connector
20Connectors• This means that a transmission line bypasses two connectors or more.
21Wire color
22Terminal number• This means the terminal number of a connector.
• The shaded circle “” means the splice.
• This means the vehicle specifications which layouts the circuit between “ ”.
• This shows that continuity exists between terminals 1 and 2 when the switch is in the A
position. Continuity exists between terminals 1 and 3 when the switch is in the B position.
• This means the connector information.
• This unit-side is described by the connector symbols.
• This shows a code for the color of the wire.
B = Black
W = White
R = Red
G = Green
L = Blue
Y = Yellow
LG = Light Green
• When the wire color is striped, the base color is given first, followed by the stripe color as
shown below:
Example: L/W = Blue with White Stripe
BR = Brown
OR or O = Orange
P = Pink
PU or V (Violet) = Purple
GY or GR = Gray
SB = Sky Blue
CH = Dark Brown
DG = Dark Green
F
G
H
I
J
K
L
M
N
O
SWITCH POSITIONS
Switches are shown in wiring diagrams as if the vehicle is in the “normal” condition.
A vehicle is in the “normal” condition when:
Revision: December 20092009 QX56
GI-11
P
Page 20
HOW TO READ WIRING DIAGRAMS
< HOW TO USE THIS MANUAL >
• ignition switch is “OFF”,
• doors, hood and trunk lid/back door are closed,
• pedals are not depressed, and
• parking brake is released.
MULTIPLE SWITCH
The continuity of multiple switch is described in two ways as shown below.
• The switch chart is used in schematic diagrams.
• The switch diagram is used in wiring diagrams.
SGI860
JSAIA0017GB
Revision: December 20092009 QX56
GI-12
Page 21
< HOW TO USE THIS MANUAL >
ABBREVIATIONS
ABBREVIATIONS
Abbreviation ListINFOID:0000000003771185
The following ABBREVIATIONS are used:
ABBREVIATIONDESCRIPTION
A/CAir Conditioner
A/TAutomatic Transaxle/Transmission
ATFAutomatic Transmission Fluid
1Drive range 1[First Gear (1 GR)]
D
2Drive range 2 [Second Gear (2 GR)]
D
3Drive range 3 [Third Gear (3 GR)]
D
4Drive range 4 [Fourth Gear (4 GR)]
D
FR, RRFront, Rear
LH, RHLeft-Hand, Right-Hand
M/TManual Transaxle/Transmission
ODOverdrive
P/SPower Steering
SAESociety of Automotive Engineers, Inc.
SDSService Data and Specifications
SSTSpecial Service Tools
2WD2-Wheel Drive
4WD4-Wheel Drive
22nd range [Second Gear (2 GR)]
2
12nd range [First Gear (1 GR)]
2
21st range [Second Gear (2 GR)]
1
11st range [First Gear (1 GR)]
1
GI
B
C
D
E
F
G
H
I
J
K
Revision: December 20092009 QX56
GI-13
L
M
N
O
P
Page 22
TIGHTENING TORQUE OF STANDARD BOLTS
< HOW TO USE THIS MANUAL >
TIGHTENING TORQUE OF STANDARD BOLTS
Tightening Torque TableINFOID:000000000 3771186
Bolt diam-
GradeBolt size
M66.01.05.50.5644970.71562
M88.0
4T
7T
9T
*: Nominal diameter
1.Special parts are excluded.
2.This standard is applicable to bolts having the following marks embossed on the bolt head.
M1010.0
M1212.0
M1414.01.5808.259—1001074—
M66.01.090.92780111.1897
M88.0
M1010.0
M1212.0
M1414.01.51301396—17017125—
M66.01.0111.18—13.51.410—
M8 8.0
M1010.0
M1212.0
M1414.01.517017125—21021155—
eter *
mm
Pitch
mm
N·mkg-mft-lbin-lbN·mkg-mft-lbin-lb
1.2513.51.410—171.713—
1.013.51.410—171.713—
1.5282.921—353.626—
1.25282.921—353.626—
1.75454.633—555.641—
1.25454.633—656.648—
1.25222.216—282.921—
1.0222.216—282.921—
1.5454.633—555.641—
1.25454.633—555.641—
1.75808.259—1001074—
1.25808.259—1001074—
1.25282.921—353.626—
1.0282.921—353.626—
1.5555.641—808.259—
1.25555.641—808.259—
1.751001074—1301396—
1.251001074—1301396—
Hexagon head boltHexagon flange bolt
Tightening torque (Without lubricant)
MGI044A
Revision: December 20092009 QX56
GI-14
Page 23
RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS
< HOW TO USE THIS MANUAL >
RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS
Recommended Chemical Products and SealantsINFOID:0000000003771187
Refer to the following chart for help in selecting the appropriate chemical product or sealant.
Product DescriptionPurpose
Rear View Mirror Adhe-
1
sive
Anaerobic Liquid Gas-
2
ket
High Performance
3
Thread Sealant
4Silicone RTV
High Temperature,
5
High Strength Thread
Locking Sealant (Red)
Medium Strength
6
Thread Locking Sealant (Blue)
Used to permanently remount rear view mirrors to
windows.
For metal-to-metal flange
sealing.
Can fill a 0.38 mm (0.015
inch) gap and provide instant sealing for most powertrain applications.
Provides instant sealing on
any threaded straight or
parallel threaded fitting.
(Thread sealant only, no
locking ability.)
• Do not use on plastic.
Gasket Maker
Gasket Maker for Maxima/
Quest 5-speed automatic
transmission
(RE5F22A)
Threadlocker999MP-AM004P999MP-AM004P
Threadlocker (service tool
removable)
Nissan North America
Part No. (USA)
999MP-AM000P99998-50505Permatex 81844
999MP-AM001P99998-50503
999MP-AM002P999MP-AM002PPermatex 56521
999MP-AM003P
(Ultra Grey)
––
999MP-AM005P999MP-AM005P
Nissan Canada Part
No. (Canada)
99998-50506
(Ultra Grey)
Aftermarket Cross-
reference Part Nos.
Permatex 51813 and
51817
Permatex Ultra Grey
82194;
Three Bond
1207,1215, 1216,
1217F, 1217G and
1217H
Nissan RTV Part No.
999MP-A7007
Three Bond 1281B
or exact equivalent in
its quality
Permatex 27200;
Three Bond 1360,
1360N, 1305 N&P,
1307N, 1335,
1335B, 1363B,
1377C, 1386B, D&E
and 1388
Loctite 648
Permatex 24200,
24206, 24240,
24283 and 09178;
Three Bond 1322,
1322N, 1324 D&N,
1333D, 1361C,
1364D, 1370C and
1374
GI
B
C
D
E
F
G
H
I
J
K
L
M
N
O
Revision: December 20092009 QX56
GI-15
P
Page 24
TERMINOLOGY
< HOW TO USE THIS MANUAL >
TERMINOLOGY
SAE J1930 Terminology ListINFOID:0000000003771188
All emission related terms used in this publication in accordance with SAE J1930 are listed. Accordingly, new
terms, new acronyms/abbreviations and old terms are listed in the following chart.
NEW TERM
Air cleanerACLAir cleaner
Barometric pressureBARO***
Barometric pressure sensor-BCDDBAROS-BCDDBCDD
Camshaft positionCMP***
Camshaft position sensorCMPSCrank angle sensor
Canister***Canister
CarburetorCARBCarburetor
Charge air coolerCACIntercooler
Closed loopCLClosed loop
Closed throttle position switchCTP switchIdle switch
Clutch pedal position switchCPP switchClutch switch
Continuous fuel injection systemCFI system***
Continuous trap oxidizer systemCTOX system***
Crankshaft positionCKP***
Crankshaft position sensorCKPS***
Data link connectorDLC***
Data link connector for CONSULT-IIIDLC for CONSULT-IIIDiagnostic connector for CONSULT-III
Diagnostic test modeDTMDiagnostic mode
Diagnostic test mode selectorDTM selectorDiagnostic mode selector
Diagnostic test mode IDTM IMode I
Diagnostic test mode IIDTM IIMode II
Diagnostic trouble codeDTCMalfunction code
Direct fuel injection systemDFI system***
Distributor ignition systemDI systemIgnition timing control
Early fuel evaporation-mixture heaterEFE-mixture heaterMixture heater
Early fuel evaporation systemEFE systemMixture heater control
Electrically erasable programmable read
only memory
Electronic ignition systemEI systemIgnition timing control
Engine controlEC***
Engine control moduleECMECCS control unit
Engine coolant temperatureECTEngine temperature
Engine coolant temperature sensorECTSEngine temperature sensor
Observe the following precautions to ensure safe and proper servicing. These precautions are not
described in each individual section.
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity 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 SR and SB section of this Service Manual.
WARNING:
• 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 NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.
INFOID:0000000005867503
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000005892330
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYSTEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1.Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
Revision: December 20092009 QX56
GI-24
Page 33
PRECAUTIONS
< PRECAUTION >
2.Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position. At this time, the
steering lock will be released.
3.Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4.Perform the necessary repair operation.
5.When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6.Perform a self-diagnosis check of all control units using CONSULT-III.
Procedures without Cowl Top CoverINFOID:0000000003771198
GI
B
C
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
PIIB3706J
General PrecautionsINFOID:00 00000003771199
• Do not operate the engine for an extended period of time without
proper exhaust ventilation.
Keep the work area well ventilated and free of any inflammable
materials. Special care should be taken when handling any inflammable or poisonous materials, such as gasoline, refrigerant gas,
etc. When working in a pit or other enclosed area, be sure to properly ventilate the area before working with hazardous materials.
Do not smoke while working on the vehicle.
SGI285
D
E
F
G
H
I
J
K
• Before jacking up the vehicle, apply wheel chocks or other tire
blocks to the wheels to prevent the vehicle from moving. After jacking up the vehicle, support the vehicle weight with safety stands at
the points designated for proper lifting before working on the vehicle.
These operations should be done on a level surface.
• When removing a heavy component such as the engine or tran-
saxle/transmission, be careful not to lose your balance and drop
them. Also, do not allow them to strike adjacent parts, especially
the brake tubes and master cylinder.
SGI231
Revision: December 20092009 QX56
GI-25
L
M
N
O
P
Page 34
PRECAUTIONS
< PRECAUTION >
• Before starting repairs which do not require battery power:
Turn off ignition switch.
Disconnect the negative battery terminal.
• If the battery terminals are disconnected, recorded memory of
radio and each control unit is erased.
• To prevent serious burns:
Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.
• Dispose of drained oil or the solvent used for cleaning parts in an
appropriate manner.
• Do not attempt to top off the fuel tank after the fuel pump nozzle
shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel spray
and possibly a fire.
• Clean all disassembled parts in the designated liquid or solvent
prior to inspection or assembly.
• Replace oil seals, gaskets, packings, O-rings, locking washers,
cotter pins, self-locking nuts, etc. with new ones.
• Replace inner and outer races of tapered roller bearings and needle bearings as a set.
• Arrange the disassembled parts in accordance with their assembled locations and sequence.
• Do not touch the terminals of electrical components which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.
• After disconnecting vacuum or air hoses, attach a tag to indicate the proper connection.
• Use only the fluids and lubricants specified in this manual.
• Use approved bonding agent, sealants or their equivalents when required.
• Use hand tools, power tools (disassembly only) and recommended
special tools where specified for safe and efficient service repairs.
• When repairing the fuel, oil, water, vacuum or exhaust systems,
check all affected lines for leaks.
SEF289H
SGI233
PBIC0190E
• Before servicing the vehicle:
Protect fenders, upholstery and carpeting with appropriate covers.
Take caution that keys, buckles or buttons do not scratch paint.
SGI234
WARNING:
To prevent ECM from storing the diagnostic trouble codes, do not carelessly disconnect the harness
connectors which are related to the engine control system and TCM (transmission control module)
Revision: December 20092009 QX56
GI-26
Page 35
PRECAUTIONS
< PRECAUTION >
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and TM sections.
Three Way CatalystINFOID:000 0000003771200
GI
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.
• Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.
• When checking for ignition spark or measuring engine compression, make tests quickly and only when necessary.
• Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to the
catalyst.
Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.
Precaution for Fuel (Unleaded Premium Gasoline Recommended)INFOID:0000000005892332
NISSAN/INFINITI recommends the use of unleaded premium gasoline with an octane rating of at least 91 AKI
(Anti-Knock Index) number (Research octane number 96). If unleaded premium gasoline is not available,
unleaded regular gasoline with an octane rating of at least 87 AKI number (Research octane number 91), but
you may notice a decrease in performance.
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Using a fuel
other than that specified could adversely affect the emission control devices and systems, and could
also affect the warranty coverage validity.
CAUTION:
Do not use E-85 fuel in your vehicle. Your vehicle is not designed to run on E-85 fuel. Using E-85 fuel
can cause damage to the fuel system components and is not covered by the INFINTI vehicle limited
warranty.
Multiport Fuel Injection System or Engine Control SystemINFOID:000 0000003771202
B
C
D
E
F
G
H
I
• Before connecting or disconnecting any harness connector for the
multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.
• Before disconnecting pressurized fuel line from fuel pump to injectors, be sure to release fuel pressure.
• Be careful not to jar components such as ECM and mass air flow
sensor.
SGI787
HosesINFOID:0000000003771203
HOSE REMOVAL AND INSTALLATION
• To prevent damage to rubber hose, do not pry off rubber hose with
tapered tool or screwdriver.
J
K
L
M
N
O
P
SMA019D
Revision: December 20092009 QX56
GI-27
Page 36
PRECAUTIONS
< PRECAUTION >
• To reinstall the rubber hose securely, make sure that hose insertion
length and orientation is correct. (If tube is equipped with hose
stopper, insert rubber hose into tube until it butts up against hose
stopper.)
HOSE CLAMPING
• If old rubber hose is re-used, install hose clamp in its original position (at the indentation where the old clamp was). If there is a trace
of tube bulging left on the old rubber hose, align rubber hose at
that position.
• Discard old clamps; replace with new ones.
SMA020D
SMA021D
• After installing plate clamps, apply force to them in the direction of
the arrow, tightening rubber hose equally all around.
SMA022D
Engine OilsINFOID:0000000003771204
Prolonged and repeated contact with used engine oil may cause skin cancer. Try to avoid direct skin contact
with used oil.
If skin contact is made, wash thoroughly with soap or hand cleaner as soon as possible.
HEALTH PROTECTION PRECAUTIONS
• Avoid prolonged and repeated contact with oils, particularly used engine oils.
• Wear protective clothing, including impervious gloves where practicable.
• Do not put oily rags in pockets.
• Avoid contaminating clothes, particularly underpants, with oil.
• Heavily soiled clothing and oil-impregnated footwear should not be worn. Overalls must be cleaned regularly.
• First aid treatment should be obtained immediately for open cuts and wounds.
• Use barrier creams, applying them before each work period, to help the removal of oil from the skin.
• Wash with soap and water to ensure all oil is removed (skin cleansers and nail brushes will help). Preparations containing lanolin replace the natural skin oils which have been removed.
• Do not use gasoline, kerosene, diesel fuel, gas oil, thinners or solvents for cleaning skin.
• If skin disorders develop, obtain medical advice without delay.
• Where practical, degrease components prior to handling.
• Where there is a risk of eye contact, eye protection should be worn, for example, chemical goggles or face
shields; in addition an eye wash facility should be provided.
ENVIRONMENTAL PROTECTION PRECAUTIONS
Revision: December 20092009 QX56
GI-28
Page 37
PRECAUTIONS
< PRECAUTION >
Dispose of used oil and used oil filters through authorized waste disposal contractors to licensed waste disposal sites, or to the waste oil reclamation trade. If in doubt, contact the local authority for advice on disposal
facilities.
It is illegal to pour used oil on to the ground, down sewers or drains, or into water sources.
The regulations concerning pollution vary between regions.
Air ConditioningINFOID:0000000003771205
GI
B
Use an approved refrigerant recovery unit any time the air conditioning system must be discharged. Refer to
HA-20, "
HFC-134a (R-134a) Service Procedure".
C
D
E
F
G
H
I
J
M
N
O
K
L
P
Revision: December 20092009 QX56
GI-29
Page 38
LIFTING POINT
< PRECAUTION >
LIFTING POINT
Pantograph JackINFOID:0000000004209201
WARNING:
• Never get under the vehicle while it is supported only by the jack. Always use safety stands to support the frame when you have to get under the vehicle.
• Place wheel chocks at both front and back of the wheels on the ground.
WAIA0041E
Garage Jack and Safety StandINFOID:0000000004209202
CAUTION:
Place a wooden or rubber block between safety stand and vehicle body when the supporting body is
flat.
WAIA0028E
2-Pole LiftINFOID:0000000004209203
WARNING:
• When lifting the vehicle, open the lift arms as wide as possible and ensure that the front and rear of
the vehicle are well balanced.
Revision: December 20092009 QX56
GI-30
Page 39
LIFTING POINT
< PRECAUTION >
• When setting the lift arm, do not allow the arm to contact the brake tubes, brake cable, or fuel lines.
GI
B
C
D
E
WAIA0029E
F
G
H
I
J
K
L
M
Revision: December 20092009 QX56
GI-31
N
O
P
Page 40
TOW TRUCK TOWING
< PRECAUTION >
TOW TRUCK TOWING
Tow Truck TowingINFOID:0000000005867507
WARNING:
• Never get under the vehicle while it is supported only by the jack. Always use safety stands to support the frame when you have to get under the vehicle.
• Place wheel chocks at both front and back of the wheels on the ground.
CAUTION:
• All applicable State or Provincial (in Canada) laws and local laws regarding the towing operation
must be obeyed.
• It is necessary to use proper towing equipment to avoid possible damage during towing operation.
Towing is in accordance with Towing Procedure Manual at dealer.
• Always attach safety chains before towing.
• When towing, make sure that the transmission, steering system and powertrain are in good order. If
any unit is damaged, dollies must be used.
• Never tow an automatic transmission model from the rear
(i.e., backward) with four wheels on the ground as this may
cause serious and expensive damage to the transmission.
2WD MODEL
NIFINTI does not recommend towing automatic transmission
equipped vehicles with the drive wheels on the ground.
CAUTION:
• When towing with the front wheels on the ground: Turn the
ignition key to the OFF position and move the transmission
selector lever to N (neutral) position, turn the ignition key to
OFF position and secure the steering wheel in a straight
ahead position with a rope or similar device. Never place the
ignition key in the LOCK position. This will result in damage
to the steering lock mechanism.
• When the battery of the vehicle equipped with Intelligent Key
system is discharged, the vehicle should be towed with the
front wheels on towing dollies or place the vehicle on a flat
bed truck.
WAIA0030E
WAIA0031E
4WD MODEL
Revision: December 20092009 QX56
GI-32
Page 41
TOW TRUCK TOWING
< PRECAUTION >
INIFINTI recommends that towing dollies be used when towing 4WD
equipped vehicles or place the vehicle on a flat bed truck.
CAUTION:
• Never tow 4WD models with any of the wheels on the ground
as this may cause serious and expensive damage to the
transfer case and transmission.
GI
B
C
D
E
F
WAIA0032E
Towing Point
CAUTION:
Never tow the vehicle using only the towing points. To avoid
damaging the vehicle body, use proper towing equipment when
towing.
AWAIA0027GB
Vehicle Recovery (Freeing a stuck vehicle)INFOID:0000000005867508
• Tow chains or cables must be attached only to the main structural members of the vehicle.
• Pulling devices should be routed so they do not touch any part of the suspension, steering, brake or
cooling systems
• Always pull the cable straight out from the front or rear of the vehicle. Never pull the vehicle at a
sideways angle.
• Pulling devices such as ropes or canvas straps are not recommended for use for vehicle towing or
recovery.
G
H
I
J
K
L
M
N
Revision: December 20092009 QX56
GI-33
O
P
Page 42
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
< BASIC INSPECTION >
BASIC INSPECTION
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
Work FlowINFOID:0000000003771212
WORK FLOW
STEPDESCRIPTION
Get detailed information about the conditions and the environment when the incident occurred.
The following are key pieces of information required to make a good analysis:
WHATVehicle Model, Engine, Transmission/Transaxle and the System (i.e. Radio).
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5Repair or replace the incident circuit or component.
STEP 6
WHENDate, Time of Day, Weather Conditions, Frequency.
WHERERoad Conditions, Altitude and Traffic Situation.
HOW
Operate the system, road test if necessary.
Verify the parameter of the incident.
If the problem cannot be duplicated, refer to “Incident Simulation Tests”.
Get the proper diagnosis materials together including:
• Power Supply Routing
• System Operation Descriptions
• Applicable Service Manual Sections
• Check for any Service Bulletins
Identify where to begin diagnosis based upon your knowledge of the system operation and the customer comments.
Inspect the system for mechanical binding, loose connectors or wiring damage.
Determine which circuits and components are involved and diagnose using the Power Supply Routing and Harness Layouts.
Operate the system in all modes. Verify the system works properly under all conditions. Make sure you have not inadvertently created a new incident during your diagnosis or repair steps.
System Symptoms, Operating Conditions (Other Components Interaction).
Service History and if any After Market Accessories have been installed.
SGI838
Control Units and Electrical PartsINFOID:0000000003771213
PRECAUTIONS
• Never reverse polarity of battery terminals.
• Install only parts specified for a vehicle.
• Before replacing the control unit, check the input and output and functions of the component parts.
• Do not apply excessive force when disconnecting a connector.
Revision: December 20092009 QX56
GI-34
Page 43
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
< BASIC INSPECTION >
• Do not apply excessive shock to the control unit by dropping or hitting it.
• Be careful to prevent condensation in the control unit due to rapid
temperature changes and do not let water or rain get on it. If water
is found in the control unit, dry it fully and then install it in the vehicle.
• Be careful not to let oil to get on the control unit connector.
• Avoid cleaning the control unit with volatile oil.
• Do not disassemble the control unit, and do not remove the upper
and lower covers.
• When using a DMM, be careful not to let test probes get close to
each other to prevent the power transistor in the control unit from
damaging battery voltage because of short circuiting.
• When checking input and output signals of the control unit, use the
specified check adapter.
GI
B
C
SAIA0255E
D
E
F
G
SEF348N
How to Check TerminalINFOID:0000000003771214
CONNECTOR AND TERMINAL PIN KIT
• Use the connector and terminal pin kits listed below when replacing connectors or terminals.
• The connector and terminal pin kits contain some of the most commonly used NISSAN/INFINITI connectors
and terminals. For detailed connector and terminal pin replacement procedures, refer to the latest NISSAN/
INFINITI CONNECTOR AND TERMINAL PIN SERVICE MANUAL.
H
I
J
K
L
M
N
O
Revision: December 20092009 QX56
GI-35
P
Page 44
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
< BASIC INSPECTION >
Tool number
(Kent-Moore No.)
Tool name
(J38751-95NI)
Connector and terminal
pin kit (NISSAN)
(J38751-95INF)
Connector and terminal
pin kit (INFINITI)
(J42992-98KIT)
OBD and terminal repair
kit
(J42992-2000UPD)
OBD-II Connector Kit Update
HOW TO PROBE CONNECTORS
• Connector damage and an intermittent connection can result from improperly probing of the connector during circuit checks.
• The probe of a digital multimeter (DMM) may not correctly fit the connector cavity. To correctly probe the
connector, follow the procedures below using a “T” pin. For the best contact grasp the “T” pin using an alligator clip.
Description
WAIA0004EWAIA0005E
Probing from Harness Side
Standard type (not waterproof type) connector should be probed
from harness side with “T” pin.
• If the connector has a rear cover such as a ECM connector,
remove the rear cover before probing the terminal.
• Do not probe waterproof connector from harness side. Damage to
the seal between wire and connector may result.
Probing from Terminal Side
FEMALE TERMINAL
• There is a small notch above each female terminal. Probe each
terminal with the “T” pin through the notch.
Do not insert any object other than the same type male terminal
into female terminal.
SGI841
SEL265V
Revision: December 20092009 QX56
GI-36
Page 45
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
< BASIC INSPECTION >
• Some connectors do not have a notch above each terminal. To
probe each terminal, remove the connector retainer to make contact space for probing.
MALE TERMINAL
• Carefully probe the contact surface of each terminal using a “T”
pin.
CAUTION:
Dot not bend terminal.
GI
B
C
SEL266V
D
E
F
G
SEL267V
How to Check Enlarged Contact Spring of Terminal
• An enlarged contact spring of a terminal may create intermittent signals in the circuit.
• If the intermittent open circuit occurs, follow the procedure below to inspect for open wires and enlarged contact spring of female terminal.
1.Assemble a male terminal and approx. 10 cm (3.9 in) of wire.
NOTE:
Use a male terminal which matches the female terminal.
2.Disconnect the suspected faulty connector and hold it terminal
side up.
SEL270V
3.While holding the wire of the male terminal, try to insert the male
terminal into the female terminal.
CAUTION:
Do not force the male terminal into the female terminal with
your hands.
H
I
J
K
L
M
N
O
SEL271V
Revision: December 20092009 QX56
GI-37
P
Page 46
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
< BASIC INSPECTION >
4.While moving the connector, check whether the male terminal
can be easily inserted or not.
• If the male terminal can be easily inserted into the female ter-
minal, replace the female terminal.
SEL272V
Waterproof Connector Inspection
If water enters the connector, it can short interior circuits. This may lead to intermittent problems.
Check the following items to maintain the original waterproof characteristics.
RUBBER SEAL INSPECTION
• Most waterproof connectors are provided with a rubber seal
between the male and female connectors. If the seal is missing,
the waterproof performance may not meet specifications.
• The rubber seal may come off when connectors are disconnected.
Whenever connectors are reconnected, make sure the rubber seal
is properly installed on either side of male or female connector.
WIRE SEAL INSPECTION
• The wire seal must be installed on the wire insertion area of a
waterproof connector. Be sure that the seal is installed properly.
Terminal Lock Inspection
Check for unlocked terminals by pulling wire at the end of connector.
An unlocked terminal may create intermittent signals in the circuit.
SEL273V
SEL275V
SEL330V
Intermittent IncidentINFOID:0000000003771215
DESCRIPTION
Sometimes the symptom is not present when the vehicle is brought in for service. If possible, re-create the
conditions present at the time of the incident. Doing so may help avoid a No Trouble Found Diagnosis. The fol-
Revision: December 20092009 QX56
GI-38
Page 47
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
< BASIC INSPECTION >
lowing section illustrates ways to simulate the conditions/environment under which the owner experiences an
electrical incident.
The section is broken into the six following topics:
• Vehicle vibration
• Heat sensitive
• Freezing
• Water intrusion
• Electrical load
• Cold or hot start up
Get a thorough description of the incident from the customer. It is important for simulating the conditions of the
problem.
VEHICLE VIBRATION
The problem may occur or become worse while driving on a rough road or when engine is vibrating (idle with
A/C on). In such a case, you will want to check for a vibration related condition. Refer to the following illustration.
GI
B
C
D
E
Connector & Harness
Determine which connectors and wiring harness would affect the electrical system you are inspecting. Gently
shake each connector and harness while monitoring the system for the incident you are trying to duplicate.
This test may indicate a loose or poor electrical connection.
Hint
Connectors can be exposed to moisture. It is possible to get a thin film of corrosion on the connector terminals. A visual inspection may not reveal this without disconnecting the connector. If the problem occurs intermittently, perhaps the problem is caused by corrosion. It is a good idea to disconnect, inspect and clean the
terminals on related connectors in the system.
Sensor & Relay
Gently apply a slight vibration to sensors and relays in the system you are inspecting.
This test may indicate a loose or poorly mounted sensor or relay.
SGI839
Engine Compartment
There are several reasons a vehicle or engine vibration could cause an electrical complaint. Some of the
things to check for are:
• Connectors not fully seated.
• Wiring harness not long enough and is being stressed due to engine vibrations or rocking.
• Wires laying across brackets or moving components.
• Loose, dirty or corroded ground wires.
• Wires routed too close to hot components.
To inspect components under the hood, start by verifying the integrity of ground connections. (Refer to Ground
Inspection described later.) First check that the system is properly grounded. Then check for loose connection
by gently shaking the wiring or components as previously explained. Using the wiring diagrams inspect the
wiring for continuity.
Behind the Instrument Panel
An improperly routed or improperly clamped harness can become pinched during accessory installation. Vehicle vibration can aggravate a harness which is routed along a bracket or near a screw.
F
G
H
I
J
K
L
M
N
O
P
Under Seating Areas
Revision: December 20092009 QX56
GI-39
Page 48
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
< BASIC INSPECTION >
An unclamped or loose harness can cause wiring to be pinched by seat components (such as slide guides)
during vehicle vibration. If the wiring runs under seating areas, inspect wire routing for possible damage or
pinching.
HEAT SENSITIVE
• The customer's concern may occur during hot weather or after car
has sat for a short time. In such cases you will want to check for a
heat sensitive condition.
• To determine if an electrical component is heat sensitive, heat the
component with a heat gun or equivalent.
CAUTION:
Do not heat components above 60°C (140°).
• If incident occurs while heating the unit, either replace or properly
insulate the component.
SGI842
FREEZING
• The customer may indicate the incident goes away after the car
warms up (winter time). The cause could be related to water freezing somewhere in the wiring/electrical system.
• There are two methods to check for this. The first is to arrange for
the owner to leave his car overnight. Make sure it will get cold
enough to demonstrate his complaint. Leave the car parked outside overnight. In the morning, do a quick and thorough diagnosis
of those electrical components which could be affected.
• The second method is to put the suspect component into a freezer
long enough for any water to freeze. Reinstall the part into the car
and check for the reoccurrence of the incident. If it occurs, repair or
replace the component.
SGI843
WATER INTRUSION
The incident may occur only during high humidity or in rainy/snowy
weather. In such cases the incident could be caused by water intrusion on an electrical part. This can be simulated by soaking the car
or running it through a car wash.
CAUTION:
Do not spray water directly on any electrical components.
ELECTRICAL LOAD
The incident may be electrical load sensitive. Perform diagnosis with
all accessories (including A/C, rear window defogger, radio, fog
lamps) turned on.
SGI844
SGI845
COLD OR HOT START UP
On some occasions an electrical incident may occur only when the car is started cold, or it may occur when
the car is restarted hot shortly after being turned off. In these cases you may have to keep the car overnight to
make a proper diagnosis.
Revision: December 20092009 QX56
GI-40
Page 49
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
< BASIC INSPECTION >
Circuit InspectionINFOID:0000000003771216
DESCRIPTION
• In general, testing electrical circuits is an easy task if it is approached in a logical and organized method.
Before beginning it is important to have all available information on the system to be tested. Also, get a thorough understanding of system operation. Then you will be able to use the appropriate equipment and follow
the correct test procedure.
• You may have to simulate vehicle vibrations while testing electrical components. Gently shake the wiring
harness or electrical component to do this.
GI
B
C
OPENA circuit is open when there is no continuity through a section of the circuit.
There are two types of shorts.
SHORT
• SHORT CIRCUIT
• SHORT TO GROUNDWhen a circuit contacts a ground source and grounds the circuit.
When a circuit contacts another circuit and causes the normal resistance to
change.
NOTE:
Refer to GI-35, "
How to Check Terminal" to probe or check terminal.
TESTING FOR “OPENS” IN THE CIRCUIT
Before you begin to diagnose and test the system, you should rough sketch a schematic of the system. This
will help you to logically walk through the diagnosis process. Drawing the sketch will also reinforce your working knowledge of the system.
SGI846-A
Continuity Check Method
The continuity check is used to find an open in the circuit. The digital multimeter (DMM) set on the resistance
function will indicate an open circuit as over limit (no beep tone or no ohms symbol). Make sure to always start
with the DMM at the highest resistance level.
To help in understanding the diagnosis of open circuits, please refer to the previous schematic.
• Disconnect the battery negative cable.
• Start at one end of the circuit and work your way to the other end. (At the fuse block in this example)
• Connect one probe of the DMM to the fuse block terminal on the load side.
• Connect the other probe to the fuse block (power) side of SW1. Little or no resistance will indicate that portion of the circuit has good continuity. If there were an open in the circuit, the DMM would indicate an over
limit or infinite resistance condition. (point A)
• Connect the probes between SW1 and the relay. Little or no resistance will indicate that portion of the circuit
has good continuity. If there were an open in the circuit, the DMM would indicate an over limit or infinite resistance condition. (point B)
• Connect the probes between the relay and the solenoid. Little or no resistance will indicate that portion of the
circuit has good continuity. If there were an open in the circuit, the DMM would indicate an over limit or infinite resistance condition. (point C)
Any circuit can be diagnosed using the approach in the previous example.
Voltage Check Method
To help in understanding the diagnosis of open circuits please refer to the previous schematic.
In any powered circuit, an open can be found by methodically checking the system for the presence of voltage.
This is done by switching the DMM to the voltage function.
• Connect one probe of the DMM to a known good ground.
• Begin probing at one end of the circuit and work your way to the other end.
• With SW1 open, probe at SW1 to check for voltage.
voltage; open is further down the circuit than SW1.
D
E
F
G
H
I
J
K
L
M
N
O
P
Revision: December 20092009 QX56
GI-41
Page 50
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
< BASIC INSPECTION >
no voltage; open is between fuse block and SW1 (point A).
• Close SW1 and probe at relay.
voltage; open is further down the circuit than the relay.
no voltage; open is between SW1 and relay (point B).
• Close the relay and probe at the solenoid.
voltage; open is further down the circuit than the solenoid.
no voltage; open is between relay and solenoid (point C).
Any powered circuit can be diagnosed using the approach in the previous example.
TESTING FOR “SHORTS” IN THE CIRCUIT
To simplify the discussion of shorts in the system, please refer to the following schematic.
SGI847-A
Resistance Check Method
• Disconnect the battery negative cable and remove the blown fuse.
• Disconnect all loads (SW1 open, relay disconnected and solenoid disconnected) powered through the fuse.
• Connect one probe of the DMM to the load side of the fuse terminal. Connect the other probe to a known
good ground.
• With SW1 open, check for continuity.
continuity; short is between fuse terminal and SW1 (point A).
no continuity; short is further down the circuit than SW1.
• Close SW1 and disconnect the relay. Put probes at the load side of fuse terminal and a known good ground.
Then, check for continuity.
continuity; short is between SW1 and the relay (point B).
no continuity; short is further down the circuit than the relay.
• Close SW1 and jump the relay contacts with jumper wire. Put probes at the load side of fuse terminal and a
known good ground. Then, check for continuity.
continuity; short is between relay and solenoid (point C).
no continuity; check solenoid, retrace steps.
Voltage Check Method
• Remove the blown fuse and disconnect all loads (i.e. SW1 open, relay disconnected and solenoid disconnected) powered through the fuse.
• Turn the ignition key to the ON or START position. Verify battery voltage at the battery + side of the fuse terminal (one lead on the battery + terminal side of the fuse block and one lead on a known good ground).
• With SW1 open and the DMM leads across both fuse terminals, check for voltage.
voltage; short is between fuse block and SW1 (point A).
no voltage; short is further down the circuit than SW1.
• With SW1 closed, relay and solenoid disconnected and the DMM leads across both fuse terminals, check for
voltage.
voltage; short is between SW1 and the relay (point B).
no voltage; short is further down the circuit than the relay.
• With SW1 closed, relay contacts jumped with fused jumper wire check for voltage.
voltage; short is down the circuit of the relay or between the relay and the disconnected solenoid (point C).
no voltage; retrace steps and check power to fuse block.
GROUND INSPECTION
• Ground connections are very important to the proper operation of electrical and electronic circuits. Ground
connections are often exposed to moisture, dirt and other corrosive elements. The corrosion (rust) can
become an unwanted resistance. This unwanted resistance can change the way a circuit works.
• Electronically controlled circuits are very sensitive to proper grounding. A loose or corroded ground can
drastically affect an electronically controlled circuit. A poor or corroded ground can easily affect the circuit.
Even when the ground connection looks clean, there can be a thin film of rust on the surface.
Revision: December 20092009 QX56
GI-42
Page 51
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
< BASIC INSPECTION >
• When inspecting a ground connection follow these rules:
- Remove the ground bolt or screw.
- Inspect all mating surfaces for tarnish, dirt, rust, etc.
- Clean as required to assure good contact.
- Reinstall bolt or screw securely.
- Inspect for “add-on” accessories which may be interfering with the ground circuit.
- If several wires are crimped into one ground eyelet terminal, check for proper crimps. Make sure all of the
wires are clean, securely fastened and providing a good ground path. If multiple wires are cased in one eyelet make sure no ground wires have excess wire insulation.
• For detailed ground distribution information, refer to “Ground Distribution” in PG section.
GI
B
C
D
E
F
G
SGI853
VOLTAGE DROP TESTS
• Voltage drop tests are often used to find components or circuits which have excessive resistance. A voltage
drop in a circuit is caused by a resistance when the circuit is in operation.
• Check the wire in the illustration. When measuring resistance with DMM, contact by a single strand of wire
will give reading of 0 ohms. This would indicate a good circuit. When the circuit operates, this single strand
of wire is not able to carry the current. The single strand will have a high resistance to the current. This will
be picked up as a slight voltage drop.
• Unwanted resistance can be caused by many situations as follows:
- Undersized wiring (single strand example)
- Corrosion on switch contacts
- Loose wire connections or splices.
• If repairs are needed always use wire that is of the same or larger gauge.
Measuring Voltage Drop — Accumulated Method
• Connect the DMM across the connector or part of the circuit you want to check. The positive lead of the
DMM should be closer to power and the negative lead closer to ground.
• Operate the circuit.
• The DMM will indicate how many volts are being used to “push” current through that part of the circuit.
H
I
J
K
L
M
N
O
Revision: December 20092009 QX56
GI-43
P
Page 52
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
< BASIC INSPECTION >
Note in the illustration that there is an excessive 4.1 volt drop between the battery and the bulb.
SGI974
Measuring Voltage Drop — Steb-by-Step
• The step-by-step method is most useful for isolating excessive drops in low voltage systems (such as those
in “Computer Controlled Systems”).
• Circuits in the “Computer Controlled System” operate on very low amperage.
• The (Computer Controlled) system operations can be adversely affected by any variation in resistance in the
system. Such resistance variation may be caused by poor connection, improper installation, improper wire
gauge or corrosion.
• The step by step voltage drop test can identify a component or wire with too much resistance.
SAIA0258E
CONTROL UNIT CIRCUIT TEST
System Description
• When the switch is ON, the control unit lights up the lamp.
CASE 1
MGI034A
Revision: December 20092009 QX56
GI-44
Page 53
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
< BASIC INSPECTION >
INPUT-OUTPUT VOLTAGE CHART
Terminal No.Description
+−Signal name
Body
1
ground
Body
2
ground
• The voltage value is based on the body ground.
• *: If high resistance exists in the switch side circuit (caused by a single strand), terminal 1 does not detect battery voltage. Control unit
does not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not supply power to light up the
lamp.
In case of high resistance such as single
strand (V) *
Lower than battery voltage Approx. 8 (Example)
GI
B
C
D
E
F
G
MGI035A
INPUT-OUTPUT VOLTAGE CHART
Terminal No.Description
+−Signal name
Body
1
ground
Body
2
ground
• The voltage value is based on the body ground.
• *: If high resistance exists in the switch side circuit (caused by a single strand), terminal 2 does not detect approx. 0V. Control unit
does not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not control ground to light up the
lamp.
LampOutput
SwitchInput
Input/
Output
ConditionValue (Approx.)
Switch ON0VBattery voltage (Inoperative lamp)
Switch OFFBattery voltageBattery voltage
Switch ON0 VHigher than 0 Approx. 4 (Example)
Switch OFF5 VApprox. 5
In case of high resistance such as single
strand (V) *
H
I
J
K
L
M
N
O
Revision: December 20092009 QX56
GI-45
P
Page 54
CONSULT-III CHECKING SYSTEM
< BASIC INSPECTION >
CONSULT-III CHECKING SYSTEM
DescriptionINFOID:0000000003771217
• When CONSULT-III is connected with a data link connector
equipped on the vehicle side, it will communicate with the control
unit equipped in the vehicle and then enable various kinds of diagnostic tests.
1: Hood release handle
2: Data link connector
• Refer to “CONSULT-III Operation Manual” for more information.
ALBIA0047ZZ
Function and System ApplicationINFOID:0000000003771218
*2
HVAC
ALL MODE AWD/4WD
*3
SONAR
NVIS (NATS)
NVIS (NATS BCM OR S/ENT)
Diagnostic test
mode
This mode enables a technician to adjust some
Work support
Self-diagnosticSelf-diagnostic can be performed quickly.----x--------------
Self-diagnostic results
Trouble diagnostic
record
Data monitorInput/Output data in the ECM can be read.xxxx- x- xxxxxxxxx- --
Data monitor (spec) Data monitor specification can be read.x------------------
CAN diagnosis
CAN diagnosis support monitor
Active test
Function test
DTC & SRT confirmation
DTC work support
ECM/ECU part number
devices faster and more accurately by following
the indications on CONSULT-III.
Self-diagnostic results can be read and erased
quickly.
Current self-diagnostic results and all trouble diagnostic records previously stored can be read.
The condition of CAN communication can be indicated by a topology.
The communication condition of CAN communication line can be read.
Diagnostic Test Mode in which CONSULT-III
drives some actuators apart from the ECMs and
also shifts some parameters in a specified range.
This mode can show results of self-diagnosis of
ECU with either “OK” or “NG”. For engines, more
practical tests regarding sensors/switches and/
or actuators are available.
The results of SRT (System Readiness Test) and
the self-diagnosis status/result can be confirmed.
The operating condition to confirm Diagnosis
Trouble Codes can be selected.
ECM/ECU part number can be read.xxxx- -x- xxxxxx xx- --
Function
*1
ABS
ICC
ENGINE
TRANSMISSION
x-xx--x-xxxx-x----x
xxxx- xxxxx- xxxxxxxx
--- - x--- - ----------
xxxxxxxxxx- -xx x- -- -
xxxx- xxxxx- -xx x- -- -
x-xx-x--xx-x-------
xxxxx---x----------
x-x-----x----------
xxx-----x----------
AIR BAG
IPDM E/R
BCM
METER/M&A
INTELLIGENT KEY
AIR LEVELIZER
AUTO DRIVE POS.
REARVIEW CAMERA
MULTI AV
NATS I-KEY
Revision: December 20092009 QX56
GI-46
Page 55
< BASIC INSPECTION >
CONSULT-III CHECKING SYSTEM
*2
HVAC
ALL MODE AWD/4WD
*3
SONAR
NVIS (NATS)
NVIS (NATS BCM OR S/ENT)
Diagnostic test
mode
ECU discriminated
No.
Passenger Airbag
AV COMM monitor
Configuration
Steering lock release
PIN readThis mode shows the BCM-specific 5-digit code.-----------------x-
Control unit
initialization
x : Applicable
*1: With intelligent cruise control
*2: With 4-wheel drive
*3: With front and rear sonar system
Classification number of a replacement ECU can
be read to prevent an incorrect ECU from being
installed.
Displays the STATUS (readiness) of the front
passenger air bag.
The condition of AV communication can be indicated.
Sets control module parameters to match vehicle
options.
The condition of steering lock release solenoid. -----------------x-
All registered ignition key IDs in NATS components can be initialized and new IDs can be registered.
Function
*1
ABS
ICC
ENGINE
TRANSMISSION
----x--------------
----x--------------
------------x------
------x------------
----------------x--
AIR BAG
IPDM E/R
BCM
METER/M&A
INTELLIGENT KEY
AUTO DRIVE POS.
MULTI AV
AIR LEVELIZER
REARVIEW CAMERA
CONSULT-III Data Link Connector (DLC) CircuitINFOID:0000000 003771219
GI
B
NATS I-KEY
C
D
E
F
G
H
I
J
INSPECTION PROCEDURE
If the CONSULT-III cannot diagnose the system properly, check the following items.
SymptomCheck item
CONSULT-III cannot access
any system.
CONSULT-III cannot access individual system. (Other systems can be accessed.)
NOTE:
The CAN and DDL2 circuits from DLC pins 6, 7 and 14 may be connected to more than one system. A short in
any circuit connected to a control unit in one system may affect CONSULT-III access to other systems.
• CONSULT-III DLC power supply circuit (Terminal 8) and ground circuit (Terminal 4)
• Power supply and ground circuit for the control unit of the system (For detailed circuit, refer to wiring
diagram for each system.)
• Open or short circuit between the system and CONSULT-III DLC (For detailed circuit, refer to wiring
diagram for each system.)
• Open or short circuit CAN communication line. Refer to LAN-14, "
Accelerator Control ................................................... 6
C
D
E
F
G
6
H
6
I
J
M
N
O
K
L
P
Revision: December 2009
ACC-1
2009 QX56
Page 58
PRECAUTIONS
< PRECAUTION >
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity 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 SR and SB section of this Service Manual.
WARNING:
• 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 NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.
INFOID:0000000005851830
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000005851831
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYSTEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1.Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2.Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position. At this time, the
steering lock will be released.
3.Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4.Perform the necessary repair operation.
Revision: December 20092009 QX56
ACC-2
Page 59
PRECAUTIONS
< PRECAUTION >
5.When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6.Perform a self-diagnosis check of all control units using CONSULT-III.
A
ACC
C
D
E
F
G
M
N
O
H
I
J
K
L
Revision: December 20092009 QX56
ACC-3
P
Page 60
ACCELERATOR CONTROL SYSTEM
< REMOVAL AND INSTALLATION >
REMOVAL AND INSTALLATION
ACCELERATOR CONTROL SYSTEM
Removal and InstallationINFOID:0000000003771801
Adjustable Accelerator Pedal
LBIA0379E
1.Adjustable accelerator pedal assembly
4.Adjustable brake pedal cable (part of
the accelerator pedal assembly)
CAUTION:
• Do not disassemble the accelerator pedal adjusting mechanism.
• Before removal and installation the accelerator and brake pedals must be in the frontmost position.
This is to align the base position of the accelerator and brake pedals.
• Do not disassemble the accelerator pedal assembly.
• Do not remove the accelerator pedal position sensor from the accelerator pedal bracket.
• Avoid damage from dropping the accelerator pedal assembly during handling.
• Keep the accelerator pedal assembly away from water.
2.A/T control cable mounting bracket (part
of the accelerator pedal assembly)
3.Adjustable pedal electric motor (part
of the accelerator pedal assembly)
REMOVAL
1.Move the accelerator and brake pedals to the frontmost position.
2.Turn the ignition switch OFF and disconnect the negative battery terminal.
3.Disconnect the adjustable brake pedal cable from the adjustable brake pedal.
• Unlock, then pull the adjustable brake pedal cable to disconnect it from the adjustable brake pedal.
Revision: December 20092009 QX56
ACC-4
Page 61
ACCELERATOR CONTROL SYSTEM
< REMOVAL AND INSTALLATION >
4.Disconnect the adjustable pedal electric motor electrical connector.
5.Disconnect the adjustable pedal electric motor memory electrical connector.
6.Disconnect the accelerator position sensor electrical connector.
7.Remove the two upper and one lower accelerator pedal nuts.
8.Remove the adjustable accelerator pedal assembly.
CAUTION:
• Do not disassemble the accelerator pedal assembly.
• Do not remove the accelerator pedal position sensor from
the accelerator pedal bracket.
• Do not disassemble the accelerator pedal adjusting mechanism.
• Avoid damage from dropping the accelerator pedal assembly during handling.
• Keep the accelerator pedal assembly away from water.
INSTALLATION
Installation is in the reverse order of removal.
A
ACC
C
LBIA0380E
D
E
INSPECTION AFTER INSTALLATION
• Check that the accelerator pedal moves smoothly within the specified ranges.
Adjustable accelerator pedal – total pedal applied stroke: 48.3 mm (1.90 in)
Adjustable accelerator pedal – total pedal adjustment travel: 73.2 mm (2.88 in)
• Depress and release the accelerator pedal to check that it returns smoothly to the original released position.
• Perform an electrical inspection of the accelerator pedal position sensor. Refer to EC-188, "
Inspection".
CAUTION:
When the harness connector of the accelerator pedal position sensor is disconnected, perform
“Accelerator Pedal Released Position Learning”. Refer to EC-63, "
CONSULT-III Function (ENGINE)".
Component
F
G
H
I
J
K
L
M
Revision: December 20092009 QX56
ACC-5
N
O
P
Page 62
SERVICE DATA AND SPECIFICATIONS (SDS)
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Accelerator ControlINFOID:0000000003771802
ADJUSTABLE ACCELERATOR PEDAL
Total Pedal Travel and Stroke
Unit: mm (in)
Adjustable accelerator pedal - total pedal applied stroke48.3 (1.90)
Adjustable accelerator pedal - total pedal adjustment travel73.2 (2.88)
Special Service Tool ..............................................162
Commercial Service Tool ......................................162
AUTOMATIC DRIVE POSITIONER .................163
Removal and Installation ....................................... 163
Revision: March 20102008 QX56
ADP-4
Page 67
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000001735407
WORK FLOW
A
B
C
D
E
F
G
H
I
ADP
K
L
M
N
O
P
ALKIA0538GB
DETAILED FLOW
Revision: March 20102008 QX56
ADP-5
Page 68
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION >
1. GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred).
>> GO TO 2
2. CHECK DTC WITH AUTOMATIC DRIVE POSITIONER SYSTEM
Check “Self Diagnostic Result” with CONSULT-III.
Refer to ADP-123, "
Is any symptom described and any DTC is displayed?
Symptom is described, DTC is displayed.>>GO TO 3
Symptom is not described, DTC is displayed.>>GO TO 7
Symptom is described, DTC is not displayed.>>GO TO 4
DTC Index".
3. CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
>> GO TO 7
4. CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
>> GO TO 5
5. CHECK NORMAL OPERATING CONDITION
Check normal operating condition. Refer to ADP-157, "
Is the incident normal operation?
YES>> INSPECTION END
NO>> GO TO 6
Description".
6. PERFORM BASIC INSPECTION
Isolate the malfunctioning point with the basic inspection. Refer to ADP-8, "
>> GO TO 8
7. PERFORM DTC CONFIRMATION PROCEDURE
Perform the confirmation procedure for the detected DTC.
Is the DTC displayed?
YES>> GO TO 9
NO>> Check intermittent incident. Refer to GI-38, "
Intermittent Incident".
8. PERFORM COMPONENT FUNCTION CHECK
Perform the component function check for the isolated malfunctioning point.
>> GO TO 9
9. DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Preliminary Check".
Isolate the malfunctioning point by performing the diagnosis procedure relevant to the symptom during the
component diagnosis.
>> GO TO 10
10. REPAIR OR REPLACE
Repair or replace the malfunctioning part.
Revision: March 20102008 QX56
ADP-6
Page 69
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION >
>> GO TO 11
11. FINAL CHECK
Perform the DTC confirmation procedure (if DTC is detected) or component function check (if no DTC is
detected) again, and then check that the malfunction can be repaired securely.
Are all malfunctions corrected?
YES>> INSPECTION END
Symptom is detected.>> GO TO 4
DTC is detected.>> GO TO 7
A
B
C
D
E
F
G
H
I
ADP
K
L
M
N
O
Revision: March 20102008 QX56
ADP-7
P
Page 70
INSPECTION AND ADJUSTMENT
< BASIC INSPECTION >
INSPECTION AND ADJUSTMENT
Preliminary CheckINFOID:0000000001735408
1. FOREIGN OBJECTS
Check the following:
• objects on or behind the seats that could cause binding
• objects under the seats that may be interfering with the seat’s moving parts
• objects under pedals that may interfere with movement
Are there any foreign objects that could be causing interference?
YES>> Remove objects.
NO>> GO TO 2
2. WIRING CONNECTIONS
1.Disconnect harness connectors.
2.Check terminals for damage or loose connections.
3.Reconnect harness connectors.
Are any connectors damaged or loose?
YES>> Repair or replace damaged parts.
NO>> GO TO 3
3. POWER AND GROUND
Check power supply and ground circuits for control unit. Refer to ADP-44, "
Diagnosis Procedure".
Is the inspection result normal?
YES>> Refer to ADP-123, "DTC Index".
NO>> Repair or replace as necessary.
DRIVER SEAT CONTROL UNIT :
Special Repair RequirementINFOID:0000000001735409
Refer to Owner’s Manual for Automatic Drive Positioner system operating instructions.
Revision: March 20102008 QX56
ADP-8
Page 71
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
FUNCTION DIAGNOSIS
AUTOMATIC DRIVE POSITIONER SYSTEM
AUTOMATIC DRIVE POSITIONER SYSTEM
AUTOMATIC DRIVE POSITIONER SYSTEM : System DiagramINFOID:00000000017 35410
A
B
C
D
E
F
G
H
I
ADP
K
L
M
N
O
P
AWJIA0511GB
Revision: March 20102008 QX56
ADP-9
Page 72
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
AUTOMATIC DRIVE POSITIONER SYSTEM : Component Parts Location
INFOID:0000000001735411
ALJIA0235ZZ
1.A. Automatic drive positioner control
unit M33, M34
B. Pedal adjusting motor assembly
E109, E110
4.Pedal adjusting switch M965.A. Door mirrror LH D4, RH D107
7.A. Sliding motor LH B204 (driver seat
view), reclining motor LH B205, lifting motor (front) B206, lifting motor
(rear) B207
B. Driver seat control unit B202,
B203
C. Power seat switch LH B208
2.A. Steering column
B. Key switch and ignition knob
switch M12
C. BCM M18, M19, M20 (view with
instrument panel removed)
B. Front door switch LH B8
C. Front door lock assembly LH (key
cylinder switch) D14
8.A. ADP sterring switch M16
B. Tilt sensor M85 and tilt motor M86
3.A. Door mirror remote control switch
D10
B. Seat memory switch D5
6.A. A/T selector lever
B. A/T shift selector (park position
switch) M203
AUTOMATIC DRIVE POSITIONER SYSTEM : System DescriptionINFOID:0000000001735412
OUTLINE
The system automatically moves the driver seat, pedal assembly, steering wheel and door mirror position by
the driver seat control unit and the automatic drive positioner control unit. The driver seat control unit corresponds with the automatic drive positioner control unit by UART communication.
Revision: March 20102008 QX56
ADP-10
Page 73
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
Function Description
The driving position (seat, pedal assembly, steering wheel and door mirror position)
Manual function
Memory function
Entry/Exit assist function
ExitOn exit, the seat moves backward and the steering wheel moves upward.
Entry
can be adjusted by using the power seat switch, pedal adjusting switch, ADP steering
switch or door mirror remote control switch.
The seat, pedal assembly and outside mirror move to the stored driving position by
pressing seat memory switch (1 or 2).
On entry, the seat and steering wheel return from exiting position to the previous driving position.
AUTOMATIC DRIVE POSITIONER SYSTEM : Component DescriptionINFOID:0000000001735413
CONTROL UNITS
ItemFunction
• Main unit of automatic drive positioner system
Driver seat control unit
Automatic drive positioner control unit
BCM
Combination meter
AV control unitThe setting change of auto drive positioner system can be performed on the display.
A/T shift selector (park position switch)Transmit the shift position signal (P range) to the driver seat control unit.
• It is connected to the CAN.
• It communicates with the automatic drive positioner control unit via UART communication.
• It communicates with the driver seat control unit via UART communication.
• Perform various controls with the instructions of driver seat control unit.
• Perform the controls of the pedal adjusting, steering wheel, door mirror and the
seat memory switch.
Transmit the following status to the driver seat control unit via CAN communication.
• Front door LH: OPEN/CLOSE
• Ignition switch position: ACC/ON
• Door lock: UNLOCK (with Intelligent Key or remote keyless entry request switch
operation)
• Key ID
• Key switch: Insert/Pull out Intelligent Key
• Starter: CRANKING/OTHER
Transmit the vehicle speed signal to the driver seat control unit via CAN communication.
A
B
C
D
E
F
G
H
I
ADP
K
INPUT PARTS
Switches
ItemFunction
Key switch and ignition knob switchThe key switch is installed to detect the key inserted/removed status.
Front door switch LHDetect front door (driver side) open/close status.
A/T shift selector (park position switch)Detect the P range position of A/T selector lever.
Set switchThe registration and system setting can be performed with its operation.
Seat memory switch 1/2The registration and operation can be performed with its operation.
The following switch is installed.
• Reclining switch
Power seat switch
Pedal adjusting switch
Revision: March 20102008 QX56
• Lifting switch (front)
• Lifting switch (rear)
• Sliding switch
The specific parts can be operated with the operation of each switch.
The following switch is installed.
• Pedal forward
• Pedal backward
The specific parts can be operated with the operation of each switch.
ADP-11
L
M
N
O
P
Page 74
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
ItemFunction
The following switch is installed.
ADP steering switch
Door mirror remote control switch
Sensors
ItemFunction
Door mirror sensor (LH/RH)Detect the up/down and left/right position of outside mirror face.
Pedal adjusting sensorDetect the forward/backward position of pedal assembly.
Tilt sensorDetect the upward/downward position of the steering wheel.
Lifting sensor (front)Detect the up/down position of seat lifting (front).
Lifting sensor (rear)Detect the up/down position of seat lifting (rear).
Reclining sensorDetect the tilt of seatback.
Sliding sensorDetect the front/rear position of seat.
• Steering wheel UP
• Steering wheel down
The specific parts can be operated with the operation of each switch.
The following switch is installed.
• Mirror switch
• Changeover switch
The specific parts can be operated with the operation of each switch.
OUTPUT PARTS
ItemFunction
Door mirror motor (LH/RH)Move the outside mirror face upward/downward and leftward/rightward.
Pedal adjusting motorMove the pedal assembly forward/backward.
Tilt motorMove the steering wheel upward/downward.
Lifting motor (front)Move the seat lifting (front) upward/downward.
Lifting motor (rear)Move the seat lifting (rear) upward/downward.
Reclining motorTilt and raise up the seatback.
Sliding motorSlide the seat forward/backward.
Seat memory indicatorIlluminates or flashes according to the registration/operation status.
MANUAL FUNCTION
Revision: March 20102008 QX56
ADP-12
Page 75
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
MANUAL FUNCTION : System DiagramINFOID:0000000001735414
A
B
C
D
E
F
G
ALJIA0236GB
MANUAL FUNCTION : System DescriptionINFOID:0000000001735415
OUTLINE
The driving position (seat, pedal assembly, steering wheel and door mirror position) can be adjusted manually
with power seat switch, pedal adjusting switch, ADP steering switch and door mirror remote control switch.
OPERATION PROCEDURE
1.Turn ignition switch ON.
2.Operate power seat switch, pedal adjusting switch, ADP steering switch or door mirror remote control
switch.
3.The driver seat, pedal assembly, steering wheel or door mirror operates according to the operation of
each switch.
DETAIL FLOW
Seat
OrderInputOutputControl unit condition
Power seat switch
1
(sliding, lifting, reclining)
Motors
2—
(sliding, lifting, reclining)
—
The power seat switch signal is inputted to the driver seat control
unit when the power seat switch is operated.
The driver seat control unit outputs signals to each motor according to the power seat switch input signal.
H
I
ADP
K
L
M
N
O
Adjustable pedals
Revision: March 20102008 QX56
ADP-13
P
Page 76
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
OrderInputOutputControl unit condition
The pedal adjusting switch signal is input to the automatic drive
1Pedal adjusting switch—
2—Motor
Sensor
3
(forward, backward)
—
Tilt steering wheel
OrderInputOutputControl unit condition
1ADP steering switch—
2—Motor
Sensor
3
(upward, downward)
—
positioner control unit when the pedal adjusting switch is operated.
The automatic drive positioner control unit actuates the motor according to the operation of the pedal adjusting switch signal from
the driver seat control unit.
The automatic drive positioner control unit recognizes any operation limit of each actuator via each sensor and will not operate
the actuator anymore at that time.
The ADP steering switch signal is input to the automatic drive positioner control unit when the ADP steering switch is operated.
The automatic drive positioner control unit actuates the tilt motor
according to the operation of the ADP steering switch signal.
The automatic drive positioner control unit recognizes any operation limit of each actuator via each sensor and will not operate
the actuator anymore at that time.
Door Mirror
OrderInputOutputControl unit condition
Door mirror remote
1
control switch
2—
Motors
(Door mirror motor)
—
The door mirror remote control switch signal is inputted to the automatic drive positioner control unit when the door mirror remote
control switch is operated.
The automatic drive positioner control unit actuates each motor
according to the operation of the door mirror remote control switch.
NOTE:
The door mirrors can be operated manually when ignition switch is in either ACC or ON position. The ignition
switch signal (ACC/ON) is transmitted from BCM to the driver seat control unit via CAN communication and
from the driver seat control unit to the automatic drive positioner control unit via UART communication.
Revision: March 20102008 QX56
ADP-14
Page 77
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
MANUAL FUNCTION : Component Parts LocationINFOID:00000000048 31089
A
B
C
D
E
F
G
ALJIA0235ZZ
1.A. Automatic drive positioner control
unit M33, M34
B. Pedal adjusting motor assembly
E109, E110
4.Pedal adjusting switch M965.A. Door mirrror LH D4, RH D107
7.A. Sliding motor LH B204 (driver seat
view), reclining motor LH B205, lifting motor (front) B206, lifting motor
(rear) B207
B. Driver seat control unit B202,
B203
C. Power seat switch LH B208
2.A. Steering column
B. Key switch and ignition knob
switch M12
C. BCM M18, M19, M20 (view with
instrument panel removed)
B. Front door switch LH B8
C. Front door lock assembly LH (key
cylinder switch) D14
8.A. ADP sterring switch M16
B. Tilt sensor M85 and tilt motor M86
3.A. Door mirror remote control switch
D10
B. Seat memory switch D5
6.A. A/T selector lever
B. A/T shift selector (park position
switch) M203
MANUAL FUNCTION : Component DescriptionINFOID:0000000001735417
CONTROL UNITS
H
I
ADP
K
L
M
N
O
ItemFunction
• Operates the specific seat motor with the signal from the power seat switch.
• Transmits the ignition switch signal (ACC/ON) via UART communication to the
Driver seat control unit
Revision: March 20102008 QX56
automatic drive positioner control unit.
• Transmits the pedal adjusting switch signal via UART communication to the automatic drive positioner control unit.
ADP-15
P
Page 78
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
ItemFunction
Automatic drive positioner control unit
BCM
INPUT PARTS
Switches
ItemFunction
Power seat switch
Pedal adjusting switch
ADP steering switch
Door mirror remote control switch
Operates the specific motor with the signal from driver seat control unit, ADP steering switch or door mirror remote control switch.
Recognizes the following status and transmits it to the driver seat control unit via
CAN communication.
• Ignition position: ACC/ON
The following switch is installed.
• Reclining switch
• Lifting switch (front)
• Lifting switch (rear)
• Sliding switch
The specific parts can be operated with the operation of each switch.
The following switch is installed.
• Pedal forward
• Pedal backward
The specific parts can be operated with the operation of each switch.
The following switch is installed.
• Steering wheel upward
• Steering wheel downward
The specific parts can be operated with the operation of each switch.
The following switch is installed.
• Mirror switch
• Changeover switch
The specific parts can be operated with the operation of each switch.
Sensors
ItemFunction
Pedal adjusting sensorDetect the forward/backward position of pedal assembly.
Tilt sensorDetect the upward/downward position of steering wheel.
OUTPUT PARTS
ItemFunction
Door mirror motor (LH/RH)Move the outside mirror face upward/downward and leftward/rightward.
Pedal adjusting motorMove the pedal assembly forward/backward.
Tilt motorMove the steering wheel upward/downward.
Lifting motor (front)Move the seat lifter (front) upward/downward.
Lifting motor (rear)Move the seat lifter (rear) upward/downward.
Reclining motorTilt and raise up the seatback.
Sliding motorSlide the seat forward/backward.
MEMORY FUNCTION
Revision: March 20102008 QX56
ADP-16
Page 79
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
MEMORY FUNCTION : System DiagramINFOID:0000000001735418
A
B
C
D
E
F
G
ALJIA0237GB
MEMORY FUNCTION : System DescriptionINFOID:0000000001735419
OUTLINE
The driver seat control unit can store the optimum driving positions (seat, pedal assembly, steering wheel and
door mirror position) for 2 people. If the front seat position is changed, one-touch (pressing desired memory
switch for more than 0.5 second) operation allows changing to the other driving position.
NOTE:
Further information for the memory storage procedure. Refer to Owner’s Manual.
OPERATION PROCEDURE
1.Turn ignition switch ON
2.Press desired memory switch for more than 0.5 second.
3.Front seat LH, pedal assembly, steering wheel and door mirror will move to the memorized position.
OPERATION CONDITION
Satisfy all of the following items. The memory function is not performed if these items are not satisfied.
ItemRequest status
Ignition positionON
Switch inputs
• Power seat switch
• Pedal adjusting switch
• ADP steering switch
• Door mirror control switch
• Set switch
• Seat memory switch
A/T selector leverP position
OFF
(Not operated)
H
I
ADP
K
L
M
N
O
P
DETAIL FLOW
Revision: March 20102008 QX56
ADP-17
Page 80
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
OrderInputOutputControl unit condition
The memory switch signal is inputted to the automatic drive positioner
1Memory switch—
Motors
(seat, pedal adjusting,
tilt, door mirror)
2—
Memory switch Indicator
Sensors
3
(seat, pedal adjusting, tilt, door mirror)
4—
Memory switch Indicator
—
control unit when memory switch 1 or 2 is operated.
Memory switch signal is input to driver seat control unit via UART
communication.
Driver seat control unit operates each motor of seat when it recognizes the memory switch pressed for 0.5 second or more and requests
each motor operation to automatic drive positioner control unit via
UART communication. The automatic drive positioner control unit operates each motor.
Driver seat control unit requests the flashing of memory indicator to
automatic drive positioner control unit via UART communication while
either of the motors is operating. The automatic drive positioner control unit illuminates the memory indicator.
Driver seat control unit judges the operating seat position with each
seat sensor input. The positions of the adjustable pedals and outside
mirror are monitored with each sensor signal that is input from auto
drive positioner control unit via UART communication. Driver seat
control unit stops the operation of each motor when each part reaches the recorded address.
Driver seat control unit requests the illumination of memory indicator
to auto drive positioner control unit via UART communication after all
motors stop. The auto driving positioner control unit illuminates the
memory indicator for 5 seconds.
MEMORY FUNCTION : Component Parts Location
INFOID:0000000004831090
ALJIA0235ZZ
Revision: March 20102008 QX56
ADP-18
Page 81
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
1.A. Automatic drive positioner control
unit M33, M34
B. Pedal adjusting motor assembly
E109, E110
4.Pedal adjusting switch M965.A. Door mirrror LH D4, RH D107
7.A. Sliding motor LH B204 (driver seat
view), reclining motor LH B205, lifting motor (front) B206, lifting motor
(rear) B207
B. Driver seat control unit B202,
B203
C. Power seat switch LH B208
2.A. Steering column
B. Key switch and ignition knob
switch M12
C. BCM M18, M19, M20 (view with
instrument panel removed)
B. Front door switch LH B8
C. Front door lock assembly LH (key
cylinder switch) D14
8.A. ADP sterring switch M16
B. Tilt sensor M85 and tilt motor M86
3.A. Door mirror remote control switch
D10
B. Seat memory switch D5
6.A. A/T selector lever
B. A/T shift selector (park position
switch) M203
MEMORY FUNCTION : Component DescriptionINFOID:0000000001735421
CONTROL UNITS
ItemFunction
• The address of each part is recorded.
Driver seat control unit
Automatic drive positioner control unit
INPUT PARTS
• Operates each motor of seat to the registered position.
• Requests the operations of pedal assembly and door mirror to automatic drive positioner control unit
Operates the pedal adjusting motor, tilt motor and door mirror with the instructions
from the driver seat control.
A
B
C
D
E
F
G
H
I
Switches
ItemFunction
Memory switch 1/2The registration and memory function can be performed with its operation.
Sensors
ItemFunction
Door mirror sensor (LH/RH)Detect the up/down and left/right position of outside mirror face.
Pedal adjusting sensorDetect the forward/backward position of pedal assembly.
Tilt sensorDetect the upward/downward position of steering wheel.
Lifting sensor (front)Detect the up/down position of seat lifting (front).
Lifting sensor (rear)Detect the up/down position of seat lifting (rear).
Reclining sensorDetect the tilt of seatback.
Sliding sensorDetect the front/rear position of seat.
OUTPUT PARTS
ItemFunction
Door mirror motor (LH/RH)Move the outside mirror face upward/downward and leftward/rightward.
Pedal adjusting motorMove the pedal assembly forward/backward.
Tilt motorMove the steering wheel upward/downward.
Lifting motor (front)Move the seat lifter (front) upward/downward.
Lifting motor (rear)Move the seat lifter (rear) upward/downward.
Reclining motorTilt and raise up the seatback.
ADP
K
L
M
N
O
P
Revision: March 20102008 QX56
ADP-19
Page 82
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
ItemFunction
Sliding motorSlide the seat forward/backward.
Memory indicatorIlluminates or blinks according to the registration/operation status.
EXIT ASSIST FUNCTION
EXIT ASSIST FUNCTION : System DiagramINFOID:0000000001735422
ALJIA0238GB
EXIT ASSIST FUNCTION : System DescriptionINFOID:0000000001735423
OUTLINE
When exiting, if the conditions are satisfied, the seat is moved backward and steering wheel is moved upwardfrom normal sitting position.
The seat slide amount at entry/exit operation can be changed.
NOTE:
• This function is set to OFF before delivery (initial setting).
• Further information for the system setting procedure. Refer to Owner’s Manual.
OPERATION PROCEDURE
1.Open the driver door with ignition switch in OFF position.
2.Front seat LH and steering wheel will move to the exiting position.
OPERATION CONDITION
Satisfy all of the following items. The exit assist function is not performed if these items are not satisfied.
ItemRequest status
Ignition switchOFF
System setting [Entry/exit assist function]ON
InitializationDone
Revision: March 20102008 QX56
ADP-20
Page 83
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
ItemRequest status
Switch inputs
• Power seat switch
• Pedal adjusting switch
• ADP steering switch
• Door mirror remote control switch
• Set switch
• Seat memory switch
A/T selector leverP position
OFF
(Not operated)
DETAIL FLOW
OrderInputOutputControl unit condition
1Front door switch LH—
2—
Motors (seat sliding,
tilt)
Driver seat control unit receives front door switch LH signal (open)
from BCM via CAN communication.
Driver seat control unit operates the seat sliding motor, which recognizes that the front door LH is opened with ignition switch OFF. Driver seat control unit then requests the operation of the tilt motor to the
automatic drive positioner control unit via UART communication.
The automatic drive positioner control unit operates the motor for a
constant amount.
EXIT ASSIST FUNCTION : Component Parts LocationINFOID:0000000004831091
A
B
C
D
E
F
G
H
ALJIA0235ZZ
I
ADP
K
L
M
N
O
P
Revision: March 20102008 QX56
ADP-21
Page 84
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
1.A. Automatic drive positioner control
unit M33, M34
B. Pedal adjusting motor assembly
E109, E110
4.Pedal adjusting switch M965.A. Door mirrror LH D4, RH D107
7.A. Sliding motor LH B204 (driver seat
view), reclining motor LH B205, lifting motor (front) B206, lifting motor
(rear) B207
B. Driver seat control unit B202,
B203
C. Power seat switch LH B208
2.A. Steering column
B. Key switch and ignition knob
switch M12
C. BCM M18, M19, M20 (view with
instrument panel removed)
B. Front door switch LH B8
C. Front door lock assembly LH (key
cylinder switch) D14
8.A. ADP sterring switch M16
B. Tilt sensor M85 and tilt motor M86
EXIT ASSIST FUNCTION : Component Description
CONTROL UNITS
ItemFunction
• Operates the seat sliding motor for a constant amount.
Driver seat control unit
Automatic drive positioner control unitOperates the tilt motor for a constant amount.
BCM
• Driver seat control unit requests the operation of the tilt motor to the automatic
drive positioner control unit via UART communication.
Recognizes the following status and transmits it to the driver seat control unit via
CAN communication.
• Front door LH: OPEN/CLOSE
3.A. Door mirror remote control switch
D10
B. Seat memory switch D5
6.A. A/T selector lever
B. A/T shift selector (park position
switch) M203
INFOID:0000000001735425
INPUT PARTS
Switches
ItemFunction
Front door switch LHDetect front door LH open/close status.
Sensors
ItemFunction
Sliding sensorDetect the front/rear position of seat.
Tilt sensorDetect the up/down position of steering wheel.
OUTPUT PARTS
ItemFunction
Sliding motorSlide the seat forward/backward.
Tilt motorMoves the steering wheel upward/downward.
ENTRY ASSIST FUNCTION
Revision: March 20102008 QX56
ADP-22
Page 85
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
ENTRY ASSIST FUNCTION : System DiagramINFOID:00000000017 35426
A
B
C
D
E
F
G
ALJIA0238GB
ENTRY ASSIST FUNCTION : System DescriptionINFOID:000000000173542 7
OUTLINE
The seat and steering wheel are in the exiting position when either following condition (A or B) is satisfied, the
seat and steering wheel return from exiting position to the previous driving position.
NOTE:
• This function is set to OFF before delivery (initial setting).
• Further information for the system setting procedure. Refer to Owner’s Manual.
OPERATION PROCEDURE
1.A: Turn the ignition switch ON.
B: Turn the ignition switch from OFF to ACC after closing the driver door.
2.Front seat LH and steering wheel will return from the exiting position to entry position.
OPERATION CONDITION
Satisfy all of the following items. The entry assist function is not performed if these items are not satisfied.
ItemRequest status
Seat, steering wheel
Switch inputs
• Power seat switch
• Pedal adjusting switch
• ADP steering switch
• Door mirror control switch
• Set switch
• Memory switch
A/T selector leverP position
The vehicle is not moved after performing the
exit assist function.
OFF
(Not operated)
H
I
ADP
K
L
M
N
O
P
DETAIL FLOW
Revision: March 20102008 QX56
ADP-23
Page 86
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
OrderInputOutputControl unit condition
Door switch/Ignition
1
switch
—Motors (sliding, tilt)
2
Sensors (sliding, tilt)—
—
Driver seat control unit receives the signals of ignition switch signal
and front door switch from BCM via CAN communication.
Driver seat control unit operates the sliding motor when the operating
conditions are satisfied. Driver seat control unit then requests the operation of the tilt motor to the automatic drive positioner control unit
via UART communication. The automatic drive positioner control unit
operates the motor for a constant amount.
Sensors monitor the operating positions of seat and steering wheel
and then stops the operation of each motor when each part reaches
the recorded address.
ENTRY ASSIST FUNCTION : Component Parts Location
INFOID:0000000004831092
ALJIA0235ZZ
1.A. Automatic drive positioner control
unit M33, M34
B. Pedal adjusting motor assembly
E109, E110
4.Pedal adjusting switch M965.A. Door mirrror LH D4, RH D107
7.A. Sliding motor LH B204 (driver seat
view), reclining motor LH B205, lifting motor (front) B206, lifting motor
(rear) B207
B. Driver seat control unit B202,
B203
C. Power seat switch LH B208
Revision: March 20102008 QX56
2.A. Steering column
B. Key switch and ignition knob
switch M12
C. BCM M18, M19, M20 (view with
instrument panel removed)
B. Front door switch LH B8
C. Front door lock assembly LH (key
cylinder switch) D14
8.A. ADP sterring switch M16
B. Tilt sensor M85 and tilt motor M86
ADP-24
3.A. Door mirror remote control switch
D10
B. Seat memory switch D5
6.A. A/T selector lever
B. A/T shift selector (park position
switch) M203
Page 87
AUTOMATIC DRIVE POSITIONER SYSTEM
< FUNCTION DIAGNOSIS >
ENTRY ASSIST FUNCTION : Component DescriptionINFOID:0000000 001735429
CONTROL UNITS
A
ItemFunction
According to the ignition signal and front door switch LH signal from BCM,
Driver seat control unit
Automatic drive positioner control unitOperates the tilt motor for a constant amount.
BCM
• Operates the seat sliding motor for a constant amount.
• Driver seat control unit then requests the operation of the tilt motor to the automatic drive positioner control unit via UART communication.
Recognizes the following status and transmits it to the driver seat control unit via
CAN communication.
• Front door LH: OPEN/CLOSE
• Ignition switch position: ACC/ON
INPUT PARTS
Switches
ItemFunction
Front door switch LHDetect front door LH open/close status.
Sensors
ItemFunction
Sliding sensorDetect the front/rear position of seat.
Tilt sensorDetect the up/down position of steering wheel.
OUTPUT PARTS
B
C
D
E
F
G
H
I
ItemFunction
Sliding motorSlide the seat forward/backward.
Tilt motorMoves the steering wheel upward/downward.
ADP
K
L
M
N
O
P
Revision: March 20102008 QX56
ADP-25
Page 88
DIAGNOSIS SYSTEM (DRIVER SEAT C/U)
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (DRIVER SEAT C/U)
Diagnosis DescriptionINFOID:0000000001735430
The auto drive positioner system can be checked and diagnosed for component operation with CONSULT-III.
DIAGNOSTIC MODE
Diagnostic mode
[AUTO DRIVE POS.]
WORK SUPPORTChanges the setting of each function.
SELF-DIAG RESULTSPerforms self-diagnosis for the auto drive positioner system and displays the results.
DATA MONITOR
CAN DIAG SUPPORT MNTRThe result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TESTDrive each output device.
ECU PART NUMBERDisplays part numbers of driver seat control unit parts.
Displays input signals transmitted from various switches and sensors to driver seat control unit in real time.
Description
CONSULT-III FunctionINFOID:0000000001735431
SELF-DIAGNOSIS RESULTS
Refer to ADP-123, "DTC Index".
DATA MONITOR
Monitor ItemUnit
SET SW“ON/OFF”××ON/OFF status judged from the setting switch signal.
MEMORY SW1“ON/OFF”××
MEMORY SW2“ON/OFF”××
SLIDE SW–FR“ON/OFF”××
SLIDE SW–RR“ON/OFF”××
RECLN SW–FR“ON/OFF”××
RECLN SW–RR“ON/OFF”××
LIFT FR SW–UP“ON/OFF”××
LIFT FR SW–DN“ON/OFF”××
LIFT RR SW–UP“ON/OFF”××
LIFT RR SW–DN“ON/OFF”××
MIR CON SW–UP“ON/OFF”××ON/OFF status judged from the mirror switch (up) signal.
MIR CON SW–DN“ON/OFF”××ON/OFF status judged from the mirror switch (down) signal.
MIR CON SW–RH“ON/OFF”××
MIR CON SW–LH“ON/OFF”××
Main
Signals
Selection
From
Menu
Contents
ON/OFF status judged from the seat memory switch 1 signal.
ON/OFF status judged from the seat memory switch 2 signal.
ON/OFF status judged from the sliding switch (forward) signal.
ON/OFF status judged from the sliding switch (backward)
signal.
ON/OFF status judged from the reclining switch (forward)
signal.
ON/OFF status judged from the reclining switch (backward)
signal.
ON/OFF status judged from the lifting switch front (up) signal.
ON/OFF status judged from the lifting switch front (down)
signal.
ON/OFF status judged from the lifting switch rear (up) signal.
ON/OFF status judged from the lifting switch rear (down)
signal.
ON/OFF status judged from the door mirror remote control
switch (passenger side) signal.
ON/OFF status judged from the door mirror remote control
switch (driver side) signal.
Revision: March 20102008 QX56
ADP-26
Page 89
DIAGNOSIS SYSTEM (DRIVER SEAT C/U)
< FUNCTION DIAGNOSIS >
Monitor ItemUnit
MIR CHNG SW–R“ON/OFF”××
MIR CHNG SW–L“ON/OFF”××
TILT SW-UP“ON/OFF”××
TILT SW-DOWN“ON/OFF”××
PEDAL SW-FR“ON/OFF”××
PEDAL SW-RR“ON/OFF”××
DETENT SW“ON/OFF”××
STARTER SW“ON/OFF”××
SLIDE PULSE—–×
RECLN PULSE—–×
LIFT FR PULSE—–×
LIFT RR PULSE—–×
MIR/SEN RH U–D“V”–×
MIR/SEN RH R–L“V”–×
MIR/SENLHU–D“V”–×
MIR/SENLHR–L“V”–×
PEDAL SEN“V”–×
Main
Signals
Selection
From
Menu
ON/OFF status judged from the door mirror remote control
switch (switching to right) signal.
ON/OFF status judged from the door mirror remote control
switch (switching to left) signal.
ON/OFF status judged from the ADP steering switch (UP)
signal.
ON/OFF status judged from the ADP steering switch
(DOWN) signal.
ON/OFF status judged from the pedal adjusting switch (forward) signal.
ON/OFF status judged from the pedal adjusting switch
(backward) signal.
The selector lever position “OFF (P position) / ON (other
than P position)” judged from the detention switch signal.
Ignition key switch ON (START, ON) /OFF (ACC, OFF) status judged from the ignition switch signal.
Value (32768) when battery connections are standard. If it
moves backward, the value increases. If it moves forward,
the value decreases.
Value (32768) when battery connections are standard. If it
moves backward, the value increases. If it moves forward,
the value decreases.
Value (32768) when battery connections are standard. If it
moves DOWN, the value increases. If it moves UP, the value decreases.
Value (32768) when battery connections are standard. If it
moves DOWN, the value increases. If it moves UP, the value decreases.
Voltage input from door mirror sensor (passenger side) up/
down is displayed.
Voltage input from door mirror sensor (passenger side) left/
right is displayed.
Voltage input from door mirror sensor (driver side) up/down
is displayed.
Voltage input from door mirror sensor (driver side) left/right
is displayed.
Pedal position (voltage) judged from the pedal adjusting
sensor signal is displayed.
Contents
A
B
C
D
E
F
G
H
I
ADP
K
L
M
ACTIVE TEST
CAUTION:
When driving vehicle, do not perform active test.
Test itemDescription
SEAT SLIDEActivates/deactivates the sliding motor.
SEAT RECLININGActivates/deactivates the reclining motor.
SEAT LIFTER FRActivates/deactivates the lifting motor (front).
SEAT LIFTER RRActivates/deactivates the lifting motor (rear).
ADJ PEDAL MOTORActivates/deactivates the pedal adjusting motor.
TILT MOTORActivates/deactivates the tilt motor.
MIRROR MOTOR RHActivates/deactivates the mirror motor (passenger side).
Revision: March 20102008 QX56
ADP-27
N
O
P
Page 90
DIAGNOSIS SYSTEM (DRIVER SEAT C/U)
< FUNCTION DIAGNOSIS >
Test itemDescription
MIRROR MOTOR LHActivates/deactivates the mirror motor (driver side).
MEMORY SW INDCTRTurns ON/OFF the memory indicator.
WORK SUPPORT
Work itemContentItem
SEAT SLIDE VOLUME SET
EXIT SEAT SLIDE SETTING
EXIT TILT SETTING
The amount of seat sliding for entry/exit assist can be selected
from 3 items.
Entry/exit assist (seat) can be selected:
ON (operated) – OFF (not operated)
Entry/exit assist (tilt) can be selected:
ON (operated) – OFF (not operated)
40 mm
80 mm
150 mm
ON
OFF
ON
OFF
Revision: March 20102008 QX56
ADP-28
Page 91
< COMPONENT DIAGNOSIS >
U1000 CAN COMM CIRCUIT
COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000001735433
Refer to LAN-4, "System Description".
DTC LogicINFOID:0000000001735434
DTC DETECTION LOGIC
DTC
U1000
DTC CONFIRMATION PROCEDURE
1. STEP 1
Turn ignition switch ON and wait at least 3 seconds.
>> GO TO 2
2. STEP 2
Trouble diagnosis
name
CAN COMM CIRCUIT
DTC detecting conditionPossible cause
• Driver seat control unit cannot communicate to other
control units.
• Driver seat control unit cannot communicate for more
than the specified time.
• Harness or connectors
(CAN communication line is
open or shorted)
A
B
C
D
E
F
G
H
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES>> Perform diagnosis procedure. Refer to ADP-29, "Diagnosis Procedure".
NO>> INSPECTION END
Diagnosis ProcedureINFOID:0000000001735435
Refer to LAN-10, "Self-Diagnosis".
Special Repair RequirementINFOID:0000000001735436
Refer to Owner’s Manual.
I
ADP
K
L
M
N
O
P
Revision: March 20102008 QX56
ADP-29
Page 92
B2112 SLIDING MOTOR
< COMPONENT DIAGNOSIS >
B2112 SLIDING MOTOR
DescriptionINFOID:0000000001735437
• The seat sliding motor is installed to the seat cushion frame.
• The seat sliding motor is installed with the driver seat control unit.
• Slides the seat frontward/rearward by changing the rotation direction of sliding motor.
DTC LogicINFOID:0000000001735438
DTC DETECTION LOGIC
DTC No.
B2112SEAT SLIDE
Trouble diagnosis
name
DTC detecting conditionPossible cause
The driver seat control unit detects the output of sliding motor output terminal for 0.1 second or more
even if the sliding switch is not input.
• Driver seat control unit
DTC CONFIRMATION PROCEDURE
1. STEP 1
Turn ignition switch ON.
>> GO TO 2
2. STEP 2
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES>> Perform diagnosis procedure. Refer to ADP-30, "Diagnosis Procedure".
NO>> INSPECTION END
NOTE:
First perform diagnosis for B2126 if B2126 is detected. Refer to ADP-40, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001735439
1. PERFORM DTC CONFIRMATION PROCEDURE
1.Turn ignition switch ON.
2.Check “Self diagnostic result” with CONSULT-III.
3.Erase the DTC.
4.Perform DTC confirmation procedure. Refer to ADP-30, "
Is the DTC displayed again?
YES>> GO TO 2
NO>> Check intermittent incident. Refer to GI-38, "
DTC Logic".
Intermittent Incident".
2. CHECK COMPONENTS
Refer to ADP-71, "
>> INSPECTION END
Revision: March 20102008 QX56
Component Function Check" and ADP-87, "Component Function Check".
ADP-30
Page 93
< COMPONENT DIAGNOSIS >
B2113 RECLINING MOTOR
B2113 RECLINING MOTOR
DescriptionINFOID:0000000001735440
• The seat reclining motor is installed to the seatback frame.
• The seat reclining motor is activated with the driver seat control unit.
• Tilts the seatback frontward/rearward by changing the rotation direction of reclining motor.
DTC LogicINFOID:0000000001735441
DTC DETECTION LOGIC
DTC No.
B2113SEAT RECLINING
DTC CONFIRMATION PROCEDURE
Trouble diagnosis
name
DTC detecting conditionPossible cause
The driver seat control unit detects the output of reclining motor output terminal for 0.1 second or more
even if the reclining switch is not input.
• Driver seat control unit
1. STEP 1
Turn ignition switch ON.
>> GO TO 2
2.STEP 2
A
B
C
D
E
F
G
H
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES>> Perform diagnosis procedure. Refer to ADP-31, "Diagnosis Procedure".
NO>> INSPECTION END
NOTE:
First perform diagnosis for B2126 if B2126 is detected. Refer to ADP-40, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001735442
1. PERFORM DTC CONFIRMATION PROCEDURE
1.Turn ignition switch ON.
2.Check “Self diagnostic result” with CONSULT-III.
3.Erase the DTC.
4.Perform DTC confirmation procedure. Refer to ADP-31, "
Is the DTC displayed again?
YES>> GO TO 2
NO>> Check intermittent incident. Refer to GI-38, "
DTC Logic".
Intermittent Incident".
2. CHECK COMPONENTS
Refer to ADP-73, "
>> INSPECTION END
Component Function Check" and ADP-89, "Component Function Check".
I
ADP
K
L
M
N
O
Revision: March 20102008 QX56
ADP-31
P
Page 94
B2114 SEAT LIFTER FR
< COMPONENT DIAGNOSIS >
B2114 SEAT LIFTER FR
DescriptionINFOID:0000000001735443
• The lifting motor (front) is installed to the seat cushion frame.
• The lifting motor (front) is activated with the driver seat control unit.
• Tilts the seat front up/down by changing the rotation direction of lifting motor (front).
DTC LogicINFOID:0000000001735444
DTC DETECTION LOGIC
DTC No.
B2114SEAT LIFTER FR
Trouble diagnosis
name
DTC detecting conditionPossible cause
The driver seat control unit detects the output of lifting motor (front) output terminal for 0.1 second or
more even if the lifting switch is not input.
• Driver seat control unit
DTC CONFIRMATION PROCEDURE
1. STEP 1
Turn ignition switch ON.
>> GO TO 2
2.STEP 2
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES>> Perform diagnosis procedure. Refer to ADP-32, "Diagnosis Procedure".
NO>> INSPECTION END
NOTE:
First perform diagnosis for B2126 if B2126 is detected. Refer to ADP-40, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001735445
1. PERFORM DTC CONFIRMATION PROCEDURE
1.Turn ignition switch ON.
2.Check “Self diagnostic result” with CONSULT-III.
3.Erase the DTC.
4.Perform DTC confirmation procedure. Refer to ADP-32, "
Is the DTC displayed again?
YES>> GO TO 2
NO>> Check intermittent incident. Refer to GI-38, "
DTC Logic".
Intermittent Incident".
2. CHECK COMPONENTS
Refer to ADP-75, "
>> INSPECTION END
Revision: March 20102008 QX56
Component Function Check" and ADP-91, "Component Function Check".
ADP-32
Page 95
< COMPONENT DIAGNOSIS >
B2115 SEAT LIFTER RR
B2115 SEAT LIFTER RR
DescriptionINFOID:0000000001735446
• The lifting motor (rear) is installed to the seat cushion frame.
• The lifting motor (rear) is activated with the driver seat control unit.
• Tilts the seat rear up/down by changing the rotation direction of lifting motor (rear).
DTC LogicINFOID:0000000001735447
DTC DETECTION LOGIC
DTC No.
B2115SEAT LIFTER RR
DTC CONFIRMATION PROCEDURE
Trouble diagnosis
name
DTC detecting conditionPossible cause
The driver seat control unit detects the output of lifting motor (rear) output terminal for 0.1 second or
more even if the lifting switch is not input.
• Driver seat control unit
1. STEP 1
Turn ignition switch ON.
>> GO TO 2
2.STEP 2
A
B
C
D
E
F
G
H
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES>> Perform diagnosis procedure. Refer to ADP-33, "Diagnosis Procedure".
NO>> INSPECTION END
NOTE:
First perform diagnosis for B2126 if B2126 is detected. Refer to ADP-40, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001735448
1. PERFORM DTC CONFIRMATION PROCEDURE
1.Turn ignition switch ON.
2.Check “Self diagnostic result” with CONSULT-III.
3.Erase the DTC.
4.Perform DTC confirmation procedure. Refer to ADP-33, "
Is the DTC displayed again?
YES>> GO TO 2
NO>> Check intermittent incident. Refer to GI-38, "
DTC Logic".
Intermittent Incident".
2. CHECK COMPONENTS
Refer to ADP-77, "
>> INSPECTION END
Component Function Check" and ADP-93, "Component Function Check".
I
ADP
K
L
M
N
O
Revision: March 20102008 QX56
ADP-33
P
Page 96
B2117 ADJ PEDAL MOTOR
< COMPONENT DIAGNOSIS >
B2117 ADJ PEDAL MOTOR
DescriptionINFOID:0000000001735449
• The pedal adjusting motor is installed to the pedal assembly.
• The pedal adjusting motor is activated with the automatic drive positioner control unit.
• The pedal assembly is adjusted forward/backward by changing the rotation direction of pedal adjusting
motor.
DTC LogicINFOID:0000000001735450
DTC DETECTION LOGIC
DTC No.
B2117ADJ PEDAL MOTOR
Trouble diagnosis
name
DTC detecting conditionPossible cause
When any manual or automatic operations are not
performed, if motor operation is detected for 0.1
second or more, status is judged "Output error".
• Harness and connectors
(pedal adjusting motor circuit is
opened/shorted, pedal adjusting
motor power supply circuit is
opened/shorted.)
• Pedal adjusting motor
DTC CONFIRMATION PROCEDURE
1. STEP 1
Turn ignition switch ON.
>> GO TO 2
2. STEP 2
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES>> Perform diagnosis procedure. Refer to ADP-34, "Diagnosis Procedure".
NO>> INSPECTION END
Diagnosis ProcedureINFOID:0000000001735451
1. CHECK PEDAL ADJUSTING MECHANISM
Check the following.
• Operation malfunction caused by pedal adjusting mechanism deformation or pinched harness or other foreign materials
• Operation malfunction and interference with other parts by poor installation
Is the inspection result normal
YES>> GO TO 2
NO>> Repair or replace the malfunctioning part and check again.
2. CHECK FUNCTION
1.Turn ignition switch ON.
2.Check “ADJ PEDAL MOTOR” in "Active test" mode with CONSULT-III.
Test itemDescription
ADJ PEDAL MOTORThe pedal adjusting motor is activated by receiving the drive signal.
Is the inspection result normal?
YES>> Pedal adjusting motor circuit is OK.
NO>> GO TO 3
3. CHECK PEDAL ADJUSTING MOTOR CIRCUIT HARNESS CONTINUITY
Revision: March 20102008 QX56
ADP-34
Page 97
B2117 ADJ PEDAL MOTOR
< COMPONENT DIAGNOSIS >
1.Turn ignition switch OFF.
2.Disconnect automatic drive positioner control unit and pedal
adjusting motor.
3.Check continuity between automatic drive positioner control unit
connector M34 (A) terminals 37, 45 and pedal adjusting motor
connector E109 (B) terminals 1, 2.
37 - 1: Continuity should exist.
45 - 2: Continuity should exist.
A
B
C
4.Check continuity between automatic drive positioner control unit
connector M34 (A) terminals 37, 45 and ground.
37 - Ground: Continuity should not exist.
45 - Ground: Continuity should not exist.
Is the inspection result normal?
YES>> GO TO 4
NO>> Repair or replace harness.
4. CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1.Connect the automatic drive positioner control unit and pedal
adjusting motor.
2.Check voltage between automatic drive positioner control unit
connector and ground.
Connec-
tor
M34
Te rm i na ls
(+)(-)
37
Ground
45
Condition
Pedal adjusting switch ON
(FORWARD operation)
Other than above 0
Pedal adjusting switch ON
(BACKWARD operation)
Other than above0
Voltage (V)
(Approx.)
Battery voltage
Battery voltage
Is the inspection result normal?
YES>> Replace pedal adjusting motor.
NO>> GO TO 5
5. CHECK INTERMITTENT INCIDENT
ALJIA0195ZZ
PIIA4806E
D
E
F
G
H
I
ADP
K
L
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES>> Replace automatic drive positioner control unit.
NO>> Repair or replace the malfunctioning part.
Revision: March 20102008 QX56
ADP-35
M
N
O
P
Page 98
B2118 TILT SENSOR
< COMPONENT DIAGNOSIS >
B2118 TILT SENSOR
DescriptionINFOID:0000000001754036
• The tilt sensor is installed to the steering column assembly.
• The resistance of tilt sensor is changed according to the up/down position of steering column.
• The terminal voltage of automatic drive positioner control unit will be changed according to a change of tilt
sensor resistance. Automatic drive positioner control unit calculates the tilt position from the voltage.
DTC LogicINFOID:0000000001754037
DTC DETECTION LOGIC
DTC No.
B2118TILT SENSOR
Trouble diagnosis
name
DTC detecting conditionPossible cause
The input voltage of tilt sensor is 0.1V or less or 4.9V
or more.
• Harness and connectors
(Tilt sensor circuit is opened/
shorted, tilt sensor power supply
circuit is opened/shorted.)
• Tilt sensor
DTC CONFIRMATION PROCEDURE
1. STEP 1
Turn ignition switch ON.
>> GO TO 2
2. STEP 2
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES>> Perform diagnosis procedure. Refer to ADP-36, "Diagnosis Procedure".
NO>> INSPECTION END
Diagnosis ProcedureINFOID:0000000001754038
1. CHECK TILT SENSOR SIGNAL
1.Turn ignition switch ON.
2.Select “TILT SEN” in “Data monitor” mode with CONSULT-III.
3.Check tilt sensor signal under the following condition.
Monitor itemConditionValue
TILT SENTilt position
Is the value normal?
YES>> GO TO 4
NO>> GO TO 2
Top2 V
Bottom4 V
2.CHECK FUNCTION
Revision: March 20102008 QX56
ADP-36
Page 99
B2118 TILT SENSOR
< COMPONENT DIAGNOSIS >
1.Turn ignition switch OFF.
2.Check voltage between automatic drive positioner connector
and ground.
A
Connector
M337Ground
Te rm in al s
(+)(-)
Condition
Tilt top position2
Tilt bottom position4
Voltage (V)
(Approx.)
OK or NG
OK>> Tilt sensor circuit is OK.
NG>> GO TO 3
3. CHECK HARNESS CONTINUITY
1.Disconnect automatic drive positioner control unit and tilt sensor.
3.Check continuity between automatic drive positioner control unit
connectors M33, M34 terminals 7, 33, 41 and ground.
7 - Ground: Continuity should not exist.
33 - Ground: Continuity should not exist.
41 - Ground: Continuity should not exist.
B
C
LIIA0485E
D
E
F
G
H
I
OK or NG
OK>> Replace tilt motor. Refer to ST-19, "Removal and Instal-
lation".
NG>> Repair or replace harness.
4. CHECK DOOR MIRROR OPERATION
1.Connect automatic drive positioner control unit connector and tilt sensor.
2.Turn ignition switch ON.
3.Check door mirror operation with memory function.
Is the operation normal?
YES>> Replace tilt sensor. Refer to ST-19, "Removal and Installation".
NO>> GO TO 5
5. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "
Is the inspection result normal?
YES>> Replace automatic drive positioner control unit.
NO>> Repair or replace the malfunctioning part.
Intermittent Incident".
ADP
K
LIIA1432E
L
M
N
O
P
Revision: March 20102008 QX56
ADP-37
Page 100
B2120 ADJ PEDAL SENSOR
< COMPONENT DIAGNOSIS >
B2120 ADJ PEDAL SENSOR
DescriptionINFOID:0000000001735452
• The pedal adjusting sensor is installed in the pedal assembly.
• The resistance of pedal adjusting sensor is changed according to the forward/backward position of pedal
assembly.
• The terminal voltage of automatic drive positioner control unit will be changed according to a change of
pedal adjusting sensor resistance. Automatic drive positioner control unit calculates the pedal assembly
position from the voltage.
DTC LogicINFOID:0000000001735453
DTC DETECTION LOGIC
DTC No.
B2120ADJ PEDAL SENSOR
Trouble diagnosis
name
DTC detecting conditionPossible cause
The input voltage of pedal adjusting sensor is 0.5V
or less or 4.5V or higher, for 0.5 seconds or more.
• Harness and connectors
(Pedal adjusting sensor circuit is
opened/shorted, pedal adjusting
sensor power supply circuit is
opened/shorted.)
• Pedal adjusting sensor
DTC CONFIRMATION PROCEDURE
1. STEP 1
Turn ignition switch ON.
>> GO TO 2
2. STEP 2
Check “Self diagnostic result” with CONSULT-III.
Is the DTC is detected?
YES>> Perform diagnosis procedure. Refer to ADP-38, "Diagnosis Procedure".
NO>> INSPECTION END
Diagnosis ProcedureINFOID:0000000001735454
1. CHECK PEDAL ADJUSTING SENSOR SIGNAL
1.Turn ignition switch ON.
2.Select “PEDAL SEN” in “Data monitor” mode with CONSULT-III.
3.Check the pedal adjusting sensor signal under the following condition.