service INFINITI QX56 2011 Factory Repair Manual

BODY ALIGNMENTBRM-57
< SERVICE DATA AND SPECIFICATIONS (SDS)
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Unit: mm (in)
: Vehicle front
Point Material Point Material
A Roof indent of center positioning mark D, d Rear center crossmember joggle
B, b Upper back pillar main joggle E, e Rear end crossmember hole center φ13 (0.51)
C, c Upper back pillar main hole center φ7 (0.28)
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Revision: 2010 May2011 QX56

BRM-58
< SERVICE DATA AND SPECIFICATIONS (SDS)
LOCATION OF PLASTIC PARTS
LOCATION OF PLASTIC PARTS
Precautions for PlasticsINFOID:0000000006248513
CAUTION:
 When repairing and painting a portion of the body adjacent to plastic parts, consider their characteristics (influence of heatand solvent) and remove them if necessary or take suitable measures to protect them.
 Plastic parts should be repaired and painted using methods suiting the materials
, characteristics.
Abbre-
viation Material name Heat resisting
temperature °C ( °F) Resistance to gasoline and
solvents Other cautions
PE Polyethylene 60 (140) Gasoline and most solvents are
harmless if applied for a very
short time (wipe out quickly).Flammable
ABS Acrylonitrile Butadiene Styrene 80 (176) Avoid gasoline and solvents. —
EPM/
EPDM Ethylene Propylene (Diene) co-
polymer
80 (176)Gasoline and most solvents are
harmless if applied for a very
short time (wipe out quickly). Flammable
PS Polystyrene 80 (176) Avoid solvents. Flammable
PVC Poly Vinyl Chloride 80 (176) Gasoline and most solvents are
harmless if applied for a very
short time (wipe out quickly).Poisonous gas is emitted
when burned.
TPO Thermoplastic Olefine 80 (176) ↑Flammable
AAS Acrylonitrile Acrylic Styrene 85 (185) Avoid gasoline and solvents. —
PMMA Poly Methyl Methacrylate 85 (185) ↑—
EVAC Ethylene Vinyl Acetate 90 (194) ↑—
PP Polypropylene 90 (194) Gasoline and most solvents are
harmless if applied for a very
short time (wipe out quickly).Flammable, avoid bat-
tery acid.
PUR Polyurethane 90 (194) Avoid gasoline and solvents. —
UP Unsaturated Polyester 90 (194) ↑Flammable
ASA Acrylonitrile Styrene Acrylate 100 (212) ↑Flammable
PPE Poly Phenylene Ether 110 (230) ↑—
TPU Thermoplastic Urethane 110 (230) ↑—
PBT+
PC Poly Butylene Terephthalate +
Polycarbonate
120 (248)
↑Flammable
PC Polycarbonate 120 (248) ↑—
POM Poly Oxymethylene 120 (248) ↑Avoid battery acid.
PA Polyamide 140 (284) ↑Avoid immersing in wa-
ter.
PBT Poly Butylene Terephthalate 140 (284) ↑—
PAR Polyarylate 180 (356) ↑—
PET Polyethylene terephthalate 180 (356) ↑—
PEI Polyetherimide 200 (392) ↑—
Revision: 2010 May2011 QX56

LOCATION OF PLASTIC PARTSBRM-59
< SERVICE DATA AND SPECIFICATIONS (SDS)
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Location of Plastic PartsINFOID:0000000006248514
Component Material Component Material
1 Upper windshield molding PVC + Stainless 12 High mount stop lampLens PMMA
2 Front combination lamp Lens PC Housing ABS
Housing PP 13 Back door air spoiler ABS
3 Front grille ABS 14 Side window glass molding Stainless
4 Bumper fascia PP + EPM 15 Door outside molding PVC + Stainless
5 Front fog lamp Lens Glass 16 Door outside handle PC + ABS
Housing
PBT + ASA +
Glass fiber 17 Side step Side step re-
inforcement
Aluminum
6 Fender protector Front PP Kicking plate PP
Rear PP 18 Reflector ABS
7 Over fender Front PP + EPDM
19Rear combination lamp
(Rear fender)
Lens PMMA
Rear PP + EPDM Housing ABS
8 Front fender duct ABS Rear combination lamp
(Back door)Lens PMMA
9 Door outside mirror Housing ABS Housing PC + ASA
Cover ABS 20 Back door finisher Upper ABS
10 Front pillar finisher PC + PET Lower ABS
11 R o o f r a c k Front cover ABS
21 License plate lampLens PC
Center cover ABS Housing PC
Rear cover PC + PET
Pipe Aluminum
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Revision: 2010 May2011 QX56

BRM-60
< SERVICE DATA AND SPECIFICATIONS (SDS)
LOCATION OF PLASTIC PARTS
Component Material Component Material
1Map lamp Lens PC 7 Center console PP
Housing PP 8 Glove box PP
2 Front pillar garnish PP 9 Instrument panelCore PP
3 Center pillar garnish PP Skin TPU
4Personal lamp Lens PC 10 Cluster lid C PC + ABS
Housing PP 11 Cluster lid D PC + ABS
5 Rear pillar finisher PP 12 Cluster lid A ABS
6 Back pillar garnish PP
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Revision: 2010 May2011 QX56

CCS-1
CRUISE CONTROL & DRIVER ASSISTANCE
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CCS
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CONTENTS
CRUISE CONTROL SYSTEM
ICC
PRECAUTION ................ ...............................
6
PRECAUTIONS .............................................. .....6
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
6
Precautions For Harness Repair ...............................6
ICC System Service ..................................................7
PREPARATION ............................................8
PREPARATION .............................................. .....8
Special Service Tools .......................................... ......8
SYSTEM DESCRIPTION ..............................9
COMPONENT PARTS ................................... .....9
Component Parts Location .................................. ......9
Component Description ...........................................10
SYSTEM .............................................................12
System Description ............................................. ....12
Fail-safe (ADAS Control Unit) .................................15
Fail-safe (ICC Sensor) ............................................15
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE FUNCTION ................................................. ....
15
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE FUNCTION : System Description ................
15
CONVENTIONAL (FIXED SPEED) CRUISE CON-
TROL MODE FUNCTION ...................................... ....
18
CONVENTIONAL (FIXED SPEED) CRUISE
CONTROL MODE FUNCTION : System Descrip-
tion ...................................................................... ....
18
OPERATION .......................................................21
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE FUNCTION ................................................. ....
21
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE FUNCTION : Switch Name and Function ....
21
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE FUNCTION : Menu Displayed by Pressing
Each Switch .............................................................
21
CONVENTIONAL (FIXED SPEED) CRUISE CON-
TROL MODE FUNCTION ...................................... ....
25
CONVENTIONAL (FIXED SPEED) CRUISE
CONTROL MODE FUNCTION : Switch Name and
Function ...................................................................
25
CONVENTIONAL (FIXED SPEED) CRUISE
CONTROL MODE FUNCTION : Menu Displayed
by Pressing Each Switch .........................................
25
HANDLING PRECAUTION ...............................27
Precautions for Vehicle- to-Vehicle Distance Con-
trol Mode .............................................................. ....
27
Precautions for Conventional (Fixed Speed)
Cruise Control Mode ................................................
29
DIAGNOSIS SYSTEM (ADAS CONTROL
UNIT) .................................................................
30
On Board Diagnosis Function ..................................30
CONSULT-III Function (ICC/ADAS) ........................31
DIAGNOSIS SYSTEM (ICC SENSOR) .............41
CONSULT-III Function (LASER) .............................41
ECU DIAGNOSIS INFORMATION ..............43
ADAS CONTROL UNIT ....................................43
Reference Value .................................................. ....43
Fail-safe ...................................................................48
DTC Inspection Priority Chart ..................................49
DTC Index ...............................................................50
ICC SENSOR ....................................................54
Reference Value ......................................................54
Fail-safe ...................................................................55
DTC Inspection Priority Chart ..................................55
DTC Index ...............................................................55
Revision: 2010 May2011 QX56

CCS-2
WIRING DIAGRAM .....................................57
INTELLIGENT CRUISE CONTROL ............... ...57
Wiring Diagram .................................................... ...57
BASIC INSPECTION ...................................69
DIAGNOSIS AND REPAIR WORK FLOW ..... ...69
Work Flow ............................................................ ...69
ADDITIONAL SERVICE WHEN REPLACING
ICC SENSOR .....................................................
71
Description ........................................................... ...71
Work Procedure ......................................................71
LASER BEAM AIMING ADJUSTMENT ............72
Description ........................................................... ...72
Work Procedure (Preparation) ................................72
Work Procedure (Setting The ICC Target Board) ...72
Work Procedure (Laser Beam Aiming Adjustment)
...
75
ACTION TEST ...................................................77
Description ........................................................... ...77
Work Procedure (Vehicle-To-Vehicle Distance
Control Mode) .........................................................
77
Work Procedure [Conventional (Fixed Speed)
Cruise Control Mode] ..............................................
80
DTC/CIRCUIT DIAGNOSIS ...................... ...83
C1A00 CONTROL UNIT ................................. ...83
ADAS CONTROL UNIT ......................................... ...83
ADAS CONTROL UNIT : DTC Logic ......................83
ADAS CONTROL UNIT : Diagnosis Procedure ......83
ICC SENSOR ......................................................... ...83
ICC SENSOR : DTC Logic .....................................83
ICC SENSOR : Diagnosis Procedure .....................83
C1A01 POWER SUPPLY CIRCUIT 1, C1A02
POWER SUPPLY CIRCUIT 2 ............................
85
ADAS CONTROL UNIT ......................................... ...85
ADAS CONTROL UNIT : DTC Logic ......................85
ADAS CONTROL UNIT : Diagnosis Procedure ......85
ICC SENSOR ......................................................... ...85
ICC SENSOR : DTC Logic .....................................85
ICC SENSOR : Diagnosis Procedure .....................86
C1A03 VEHICLE SPEED SENSOR ..................87
DTC Logic ............................................................ ...87
Diagnosis Procedure ..............................................87
C1A04 ABS/TCS/VDC SYSTEM .......................89
DTC Logic ............................................................ ...89
Diagnosis Procedure ..............................................89
C1A05 BRAKE SW/STOP LAMP SW ...............90
DTC Logic ............................................................ ...90
Diagnosis Procedure ..............................................90
Component Inspection (ICC Brake Switch) ......... ...93
Component Inspection (Stop Lamp Switch) ............93
C1A06 OPERATION SW ...................................94
DTC Logic ............................................................ ...94
Diagnosis Procedure ...............................................94
Component Inspection ............................................95
C1A12 LASER BEAM OFF CENTER ...............96
ADAS CONTROL UNIT .......................................... ...96
ADAS CONTROL UNIT : DTC Logic ......................96
ADAS CONTROL UNIT : Diagnosis Procedure ......96
ICC SENSOR .......................................................... ...96
ICC SENSOR : DTC Logic ......................................96
ICC SENSOR : Diagnosis Procedure .....................96
C1A13 STOP LAMP RELAY .............................97
DTC Logic ............................................................ ...97
Diagnosis Procedure ...............................................97
Component Inspection ..........................................102
C1A14 ECM ......................................................103
DTC Logic ............................................................ .103
Diagnosis Procedure .............................................103
C1A15 GEAR POSITION .................................104
Description ........................................................... .104
DTC Logic .............................................................104
Diagnosis Procedure .............................................104
C1A16 RADAR STAIN ................................... ..106
ADAS CONTROL UNIT .......................................... .106
ADAS CONTROL UNIT : DTC Logic ....................106
ADAS CONTROL UNIT : Diagnosis Procedure ....106
ICC SENSOR .......................................................... .106
ICC SENSOR : DTC Logic ....................................106
ICC SENSOR : Diagnosis Procedure ...................107
C1A17 ICC SENSOR ........................................108
DTC Logic ............................................................ .108
Diagnosis Procedure .............................................108
C1A18 LASER AIMING INCMP .......................109
ADAS CONTROL UNIT .......................................... .109
ADAS CONTROL UNIT : DTC Logic ....................109
ADAS CONTROL UNIT : Diagnosis Procedure ....109
ICC SENSOR .......................................................... .109
ICC SENSOR : DTC Logic ....................................109
ICC SENSOR : Diagnosis Procedure ...................110
C1A21 UNIT HIGH TEMP .................................111
ADAS CONTROL UNIT .......................................... .111
ADAS CONTROL UNIT : DTC Logic ....................111
ADAS CONTROL UNIT : Diagnosis Procedure ....111
ICC SENSOR .......................................................... .111
ICC SENSOR : DTC Logic ....................................111
Revision: 2010 May2011 QX56

CCS-6
< PRECAUTION >[ICC]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint S
ystem (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006224261
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/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 “SRS AIR BAG”.
 Do not use electrical test equipmen t 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 Air Bag Diagnosis Sensor Unit or other Air Bag 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 minu tes before performing any service.
Precautions For Harness RepairINFOID:0000000006224262
ITS communication uses a twisted pair line. Be careful when repairing it.
 Solder the repaired area and wrap tape around the soldered area.
NOTE:
A fray of twisted lines must be within 110 mm (4.33 in).
SKIB8766E
Revision: 2010 May2011 QX56

CCS
PRECAUTIONSCCS-7
< PRECAUTION > [ICC]
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 Bypass connection is never allowed at the repaired area. NOTE:
Bypass connection may cause ITS communication error. The
spliced wire becomes separated and t he characteristics of twisted
line are lost.
ICC System ServiceINFOID:0000000006224263
CAUTION:
 Never look straight into th e laser beam discharger when adjusting laser beam aiming.
 Turn the MAIN switch OFF in conditions similar to driving, such as free rollers or a chassis dyna-
mometer.
 Never use the ICC sensor removed from vehicle. Never disassemble or remodel.
 Erase DTC when replacing parts of ICC system, then check the operation of ICC system after adjust-
ing laser beam aiming if necessary.
SKIB8767E
Revision: 2010 May2011 QX56

CCS-8
< PREPARATION >[ICC]
PREPARATION
PREPARATION
PREPARATION
Special Service ToolsINFOID:0000000006224264
The actual shapes of Kent-Moore tools may differ fr
om those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name Description
KV99110100
(J-45718)
ICC target board Uses for laser beam aiming adjustment
PKIA0358J
Revision: 2010 May2011 QX56

CCS
ADDITIONAL SERVICE WHEN REPLACING ICC SENSOR
CCS-71
< BASIC INSPECTION > [ICC]
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ADDITIONAL SERVICE WHEN REPLACING ICC SENSOR
DescriptionINFOID:0000000006224291
 Always perform the laser beam aiming adjustment after removing and installing or replacing the ICC sensor.
CAUTION:
The system does not operate normally unless the l aser beam aiming adjustment is performed.
Always perform it.
 Perform the ICC system action test to c heck that the ICC system operates normally.
Work ProcedureINFOID:0000000006224292
1.LASER BEAM AIMING ADJUSTMENT
Adjust the laser beam aiming. Refer to CCS-72, "
Description".
>> GO TO 2.
2.ICC SYSTEM ACTION TEST
1. Perform the ICC system action test. Refer to CCS-77, "
Description".
2. Check that the ICC system operates normally.
>> INSPECTION END
Revision: 2010 May2011 QX56