steering wheel INFINITI QX56 2008 Factory Service Manual

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGRSU-5
< SYMPTOM DIAGNOSIS >
C
DF
G H
I
J
K L
M A
B
RSU
N
O P
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHN ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001534649
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
RSU-9RSU-6—
—
—
RSU-9RSU-6RSU-6
DLN-192, "
NVH Troubleshooting Chart
"
DLN-240, "
NVH Troubleshooting Chart
"
FAX-5, "
NVH Troubleshooting Chart
"
FSU-6, "
NVH Troubleshooting Chart
"
WT-41, "
NVH Troubleshooting Chart
"
WT-41, "
NVH Troubleshooting Chart
"
RAX-5, "
NVH Troubleshooting Chart
"
BR-6, "
NVH Troubleshooting Chart
"
ST-12, "
NVH Troubleshooting Chart
"
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Shock absorber deformation, damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
PROPELLER SHAFT
DIFFERENTIAL
FRONT AXLE
FRONT SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom Noise
×××××× ××× ××××××
Shake ×××× × × × ××××××
Vibration ××××× × × ×× × ×
Shimmy ×××× × × ××× ××
Shudder ××× × ××× ××
Poor quality ride or handling ××××× ×× × ×××
Revision: March 2010 2008 QX56

REAR SUSPENSION ASSEMBLYRSU-7
< ON-VEHICLE MAINTENANCE >
C
DF
G H
I
J
K L
M A
B
RSU
N
O P
• If vehicle height is not within ± 10 mm (0.39 in) of the specification, perform the control unit initialization
procedure. Refer to SCS-7, "
CONSULT-III Function" .
GENERAL INFORMATION AND RECOMMENDATIONS
1. A Four-Wheel Thrust Alignment should be performed.
• This type of alignment is re commended for any NISSAN vehicle.
• The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel
is centered.
• The alignment machine itself should be ca pable of accepting any NISSAN vehicle.
• The alignment machine should be checked to ensure that it is level.
2. Make sure the alignment machine is properly calibrated. • Your alignment machine should be regularly calibrated in order to give correct information.
• Check with the manufacturer of your specific a lignment machine for their recommended Service/Cali-
bration Schedule.
THE ALIGNMENT PROCESS
IMPORTANT: Use only the alignment specifications listed in this Service Manual. Refer to RSU-28, "Wheel
Alignment" .
1. When displaying the alignment settings, many alignm ent machines use “indicators”: (Green/red, plus or
minus, Go/No Go). Do NOT use these indicators.
• The alignment specifications programmed into your alignment machine that operate these indicators
may not be correct.
• This may result in an ERROR.
2. Some newer alignment machines are equipped with an optional “Rolling Compensation” method to “com-
pensate” the sensors (alignment targets or head units). Do NOT use this “Rolling Compensation”
method.
• Use the “Jacking Compensation” method. After installing the alignment targets or head units, raise the vehicle and rotate the wheels 1/2 turn both ways.
• See Instructions in the alignment machine you are using for more information.
CAMBER
1. Measure camber of both the right and left wheels with a suitable alignment gauge and adjust as necessary to specification.
2. If outside of the specified value, adjust the camber using the adjusting bolt in the front lower link.
CAUTION:
After adjusting the camber then check the toe-in.
NOTE:
Camber changes about 0 ° 5' with each graduation of the adjust-
ing bolt.
3. Tighten the adjusting bolt nuts to specification.
TOE-IN
1. Bounce the rear of the vehicle up and down two to three times to stabilize the vehicle height. Refer to RSU-29, "
Wheelarch Height (Unladen*1)" .
2. Push the vehicle straight ahead about 5 m (16 ft). Camber : Refer to
RSU-28, "
Wheel Alignment" .
SRA096A
LEIA0041E
Revision: March 2010 2008 QX56

SB-1
RESTRAINTS
C
DE
F
G
I
J
K L
M
SECTION SB
A
B
SB
N
O P
CONTENTS
SEAT BELT
PRECAUTION ....... ........................................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Precaution for Seat Belt Service ...............................3
ON-VEHICLE REPAIR ..................................4
SEAT BELTS .......................................................4
Removal and Installation of Front Seat Belt ........ .....4
Removal and Installation of Second Row Seat Belt
.....
7
Removal and Installation of Third Row Seat Belt .....9
Seat Belt Inspection ............................................. ....11
LATCH (LOWER ANCHORS AND TETHER
FOR CHILDREN) SYSTEM ...............................
14
Removal and Installation .........................................14
TOP TETHER STRAP CHILD RESTRAINT .....15
Removal and Installation .........................................15
Revision: March 2010 2008 QX56

SB-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004886894
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or 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 w hether 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 Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
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 Igni-
tion ON or engine running, DO NOT use air or electri c 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 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000004886895
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• 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 mech-
anism 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 pow er 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: March 2010 2008 QX56

SE-2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ..................................
43
Precaution for Work ................................................44
PREPARATION ...........................................45
PREPARATION .............................................. ...45
Special Service Tool ............................................ ...45
Commercial Service Tool .......................................45
ON-VEHICLE REPAIR ................................46
FRONT SEAT ................................................. ...46
Exploded View ..................................................... ...46
Removal and Installation ........................................49
SECOND SEAT .................................................50
Exploded View ..................................................... ...50
Removal and Installation ........................................54
THIRD SEAT ......................................................55
W/O Power Folding ............................................. ...55
Exploded View ........................................................55
LH Side Seat ..........................................................58
RH Side Seat ....................................................... ...59
Power Folding .........................................................60
Exploded View ........................................................60
LH Side Seat ...........................................................62
Power seat cross beam ..........................................63
RH Side Seat ..........................................................67
DISASSEMBLY AND ASSEMBLY ............68
FRONT SEAT ................................................. ...68
Exploded View ..................................................... ...68
Disassembly and Assembly ....................................71
SECOND SEAT .................................................74
Disassembly and Assembly ................................. ...74
THIRD SEAT ......................................................79
W/O Power Folding .............................................. ...79
Exploded View ........................................................79
LH Side Seat ...........................................................82
Power Folding .........................................................83
Exploded View ........................................................83
LH Side Seat ...........................................................86
Revision: March 2010 2008 QX56

PRECAUTIONSSE-43
< PRECAUTION >
C
DE
F
G H
I
K L
M A
B
SE
N
O P
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004886906
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 severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether 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 Man-
ual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric 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:0000000004886907
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecti ng 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 mech-
anism 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: March 2010 2008 QX56

SEC-2
B2191, P1615 DIFFERENCE OF KEY ..............32
Description ..............................................................32
DTC Logic ...............................................................32
Diagnosis Procedure ..............................................32
B2192, P1611 ID DISCORD, IMMU-ECM .........33
Description ........................................................... ...33
DTC Logic ...............................................................33
Diagnosis Procedure ..............................................33
B2193, P1612 CHAIN OF ECM-IMMU ..............35
Description ........................................................... ...35
DTC Logic ...............................................................35
Diagnosis Procedure ..............................................35
B2194 ID DISCORD IMMU-I-KEY .....................36
Description ........................................................... ...36
DTC Logic ...............................................................36
Diagnosis Procedure ..............................................36
B2552 INTELLIGENT KEY ................................37
Description ........................................................... ...37
DTC Logic ...............................................................37
Diagnosis Procedure ..............................................37
Special Repair Requirement ...................................37
B2590 ID DISCORD BCM-I-KEY .................... ...38
Description ........................................................... ...38
DTC Logic ...............................................................38
Diagnosis Procedure ..............................................38
P1610 LOCK MODE ..........................................39
Description ........................................................... ...39
DTC Logic ...............................................................39
Diagnosis Procedure ..............................................39
POWER SUPPLY AND GROUND CIRCUIT .....40
INTELLIGENT KEY UNIT ...................................... ...40
INTELLIGENT KEY UNIT : Diagnosis Procedure ...40
BCM ........................................................................ ...40
BCM : Diagnosis Procedure ...................................40
KEY CYLINDER SWITCH .................................42
Description ........................................................... ...42
Component Function Check ...................................42
Diagnosis Procedure ..............................................42
IGNITION KNOB SWITCH .................................44
Ignition Knob Switch Check ................................. ...44
HOOD SWITCH .................................................46
Diagnosis Procedure ..............................................46
HORN FUNCTION .............................................48
Symptom Table ................................................... ...48
VEHICLE SECURITY INDICATOR ....................49
Description ........................................................... ...49
Component Function Check .................................49
Diagnosis Procedure ............................................ ...49
ECU DIAGNOSIS .......................................51
BCM (BODY CONTROL MODULE) ............... ...51
Reference Value .................................................. ...51
Terminal Layout ......................................................53
Physical Values .......................................................53
Wiring Diagram - VEHICLE SECURITY SYSTEM ...59
Wiring Diagram - IVIS .............................................70
Fail Safe .................................................................78
DTC Inspection Priority Chart ...............................79
DTC Index ..............................................................79
INTELLIGENT KEY UNIT ..................................81
Reference Value - Intelligent Key Unit ................. ...81
Reference Value - Steering Lock Solenoid .............84
Wiring Diagram - INTELLIGENT KEY SYSTEM/
ENGINE START FUNCTION - ................................
85
Fail Safe .................................................................96
DTC Inspection Priority Chart ...............................97
DTC Index ..............................................................97
IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) .................
98
Reference Value .................................................. ...98
Terminal Layout ....................................................100
Physical Values .....................................................100
Wiring Diagram .....................................................105
Fail Safe ...............................................................108
DTC Index ............................................................110
SYMPTOM DIAGNOSIS ...........................111
INTELLIGENT KEY SYSTEM/ENGINE
START FUNCTION SYMPTOMS ................... ..
111
Symptom Table .................................................... .111
VEHICLE SECURITY SYSTEM SYMPTOMS ..112
Symptom Table .....................................................112
NISSAN VEHICLE IMMOBILIZER SYSTEM-
NATS SYMPTOMS ...........................................
113
Symptom Table .................................................... .113
PRECAUTION ...........................................114
PRECAUTIONS .............................................. ..114
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. .
114
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ................................
114
ON-VEHICLE REPAIR ..............................116
INTELLIGENT KEY UNIT ............................... ..116
Removal and Installation .......................................116
Revision: March 2010 2008 QX56

SEC-12
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Component Description
INFOID:0000000001539103
10. Inside key antenna 1 (rear of center con- sole) M209 11. Inside key antenna 4 (overhead console
area) R210
(view with overhead console removed) 12. Inside key antenna 2 (luggage
compartment) B76
(view with rear carpet removed)
13. Intelligent Key warning buzzer E25 14. Combination meter M23, M24 15. Vehicle security indicator lamp
Item Function
Intelligent Key unit Receives lock/unlock signal from remote keyless entry receiver, and then transmits to BCM.
BCM Verifies the received signal from Intelligent Key, then informs ECM whether to allow engine start.
Remote keyless entry receiver Receives lock/unlock signal from th e Intelligent Key, and then transmits to Intelligent Key unit.
Intelligent Key Transmits button operation to remote keyless entry receiver.
Steering lock solenoid Locks the steering wheel when the ignition key is off and the Intelligent Key is outside the vehicle.
Inside key antenna Detects if Intelligent Key is inside the vehicle.
Intelligent Key warning buzzer Warns the user of the lock/unlock condition and inappropriate operations with the buzzer sound.
A/T shift selector (detention key
switch) Detects whether the shift lever is in park.
Revision: March 2010
2008 QX56

NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)
SEC-15
< FUNCTION DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
SEC
N
O P
Component Parts LocationINFOID:0000000001539106
Component DescriptionINFOID:0000000001539107
1. Key switch and ignition knob switch M12 2. Steering lock solenoid M15
(view with steering column removed) 3. Remote keyless entry receiver M25
(view with instrument panel RH re-
moved)
4. BCM M18, M19, M20 (view with instrument panel LH re-
moved) 5. Intelligent Key unit M70
(view with instrument panel LH re-
moved) 6. ECM E16
7. IPDM E/R E122, E124 (view with co ver removed) 8. NATS antenna amp. M21
9. Combination meter M23, M24
10. Security indicator lamp
ALKIA0959ZZ
Item Function
Intelligent Key unit Receives lock/unlock signal from re mote keyless entry receiver, and then transmits to BCM.
BCM Controls the door lock function and room lamp function.
Remote keyless entry receiver Receives lock/unlock signal from the Intelligent Key, and then transmits to Intelligent Key unit.
Intelligent Key Transmits button operation to remote keyless entry receiver.
Steering lock solenoid Locks the steering wheel when the ignition key is off and the Intelligent Key is outside the vehicle.
Revision: March 2010 2008 QX56

SEC-114
< PRECAUTION >[WITH INTELLIGENT KEY SYSTEM]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004874836
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or 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 w hether 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 Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
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 Igni-
tion ON or engine running, DO NOT use air or electri c 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 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000004874838
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• 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 mech-
anism 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 pow er 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: March 2010 2008 QX56