2011 INFINITI QX56 battery location

ADP-1
BODY INTERIOR
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G H
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SECTION ADP
A
B
ADP
N
O P
CONTENTS
AUTOMATIC DRIVE POSITIONER
PRECAUTION ................ ...............................5
PRECAUTIONS .............................................. .....5
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
5
SYSTEM DESCRIPTION ..............................6
COMPONENT PARTS ................................... .....6
Component Parts Location .................................. ......6
Component Description ............................................7
SYSTEM .............................................................11
AUTOMATIC DRIVE POSITIONER SYSTEM ....... ....11
AUTOMATIC DRIVE POSITIONER SYSTEM :
System Diagram ......................................................
11
AUTOMATIC DRIVE POSITIONER SYSTEM :
System Description .................................................
11
MANUAL FUNCTION ............................................ ....12
MANUAL FUNCTION : System Diagram ................13
MANUAL FUNCTION : System Description ............13
MEMORY FUNCTION ........................................... ....14
MEMORY FUNCTION : System Diagram ...............15
MEMORY FUNCTION : System Description ..........15
EXIT ASSIST FUNCTION ...................................... ....17
EXIT ASSIST FUNCTION : System Diagram .........17
EXIT ASSIST FUNCTION : Sy stem Description .....17
ENTRY ASSIST FUNCTION ................................. ....18
ENTRY ASSIST FUNCTION : System Diagram .....18
ENTRY ASSIST FUNCTION : System Description
....
18
INTELLIGENT KEY INTERLOCK FUNCTION ...... ....19
INTELLIGENT KEY INTERLOCK FUNCTION :
System Diagram ......................................................
20
INTELLIGENT KEY INTERLOCK FUNCTION :
System Description .................................................
20
Fail Safe .............................................................. ....21
DIAGNOSIS SYSTEM (DRIVER SEAT CON-
TROL UNIT) ......................................................
22
CONSULT-III Function ............................................22
ECU DIAGNOSIS INFORMATION ..............25
DRIVER SEAT CONTROL UNIT ......................25
Reference Value .................................................. ....25
Fail Safe ..................................................................30
DTC Index ...............................................................31
AUTOMATIC DRIVE POSITIONER CON-
TROL UNIT ........................................................
32
Reference Value ......................................................32
BCM (BODY CONTROL MODULE) .................35
List of ECU Reference .............................................35
WIRING DIAGRAM ......................................36
AUTOMATIC DRIVE POSITIONER SYSTEM ...36
Wiring Diagram .................................................... ....36
BASIC INSPECTION ...................................48
DIAGNOSIS AND REPAIR WORK FLOW .......48
Work Flow ............................................................ ....48
INSPECTION AND ADJUSTMENT ..................51
ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL ............................... ....
51
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Description .....
51
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Special Re-
pair Requirement .....................................................
51
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .................................................... ....
51
Revision: 2010 May2011 QX56

AV-62
< ECU DIAGNOSIS INFORMATION >
HEADREST DISPLAY UNIT
HEADREST DISPLAY UNIT
Reference ValueINFOID:0000000006216229
TERMINAL LAYOUT
PHYSICAL VALUES
JPNIA0007ZZ
Terminal
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal name Input/
Output
1
(L) Ground Ground — Ignition
switch ON —0 V
2
(V) Ground Battery power supply Input Ignition
switch
OFF — Battery voltage
3
(GR) Ground Ground — Ignition
switch ON —0 V
4
(L/R) Ground Battery power supply Input Ignition
switch OFF — Battery voltage
9
(B/R) Ground
Location recognition signal
for headrest display unit RH InputIgnition
switch
ON —0 V
10
(L/B) Ground Location recognition signal
for headrest display unit LH
InputIgnition
switch ON —0 V
11
(B) —AV communication signal
(H) Input/
Output —— —
12
(G) —AV communication signal
(H) Input/
Output —— —
13
(R) —
AV communication signal
(L) Input/
Output —— —
14
(W) —AV communication signal
(L) Input/
Output —— —
15 — Shield — — — —
18
(W/R) Ground ACC signal Input Ignition
switch OFF — 3.3 V
Ignition switch
ACC —0 V
Revision: 2010 May2011 QX56

AV-204
< SYMPTOM DIAGNOSIS >
MULTI AV SYSTEM SYMPTOMS
NOTE:
Check that there is no malfunction of AUX equipment main body before performing a diagnosis.
RELATED TO HEADPHONE
NOTE:
Check that the remaining amount of the headphone battery is sufficient to perform diagnosis.
RELATED TO HEADREST DISPLAY UNIT AND REAR AUXILIARY INPUT
NOTE:
 Check that there is no malfunction of AUX equipment main body before performing a diagnosis.
 Check that the remaining amount of the rear seat remote controller battery is sufficient to perform diagnosis.
Symptoms Check items Probable malfunction location
No voice sound is heard when
front AUX mode is selected. Voice sound is heard when other modes
are selected. AUX sound signal circuit between front auxiliary input
jacks and AV control unit.
Image is not displayed when
front AUX mode is selected. DVD image is displayed on front display
unit, headrest display unit LH and RH.
AUX image signal circuit between front auxiliary input
jacks and AV control unit.
Refer to
AV- 1 7 1 , "
Diagnosis Procedure".
Headrest display unit LH and RH are nor-
mal. Composite image signal circuit between AV control unit
and front display unit.
Refer to
AV- 1 6 7 , "
Diagnosis Procedure".
Front display unit is normal. Refer to “RELATED TO HEADREST DISPLAY UNIT
AND REAR AUXILIARY INPUT”
Symptoms Check items Probable malfunction location
Sound does not come from
headrest display units of both
side. The indicator lamp of headphone is illumi-
nated.
Sound signal circuit between AV control unit and video
distributor.
The indicator lamp of headphone is not il-
luminated. Headphone malfunction
Sound does not come from
headrest display unit LH (RH). The LED for headphones sound transmis-
sion of headrest display unit is illuminated.
Headphone sound signal circuit between video distribu-
tor and headrest display unit LH (RH).
The LED for headphone sound transmis-
sion of headrest display unit is not illumi-
nated. Replace headrest display unit LH (RH).
Refer to
AV- 2 1 4 , "
Exploded View".
Symptoms Check items Probable malfunction location / Action to
take
Headrest display unit cannot
be powered on for both side. Headrest display unit can be powered on by “Rear dis-
play” in “Settings” menu of front display unit.
Rear seat remote controller malfunction
 Headrest display unit can not be powered
on by “Rear display”
in “Settings” menu of
front display unit.
 Check “Display Loca- tion” in diagnosis
function of headrest
display unit LH.
Refer to AV- 4 9 , "
On
Board Diagnosis
Function". Diagnosis result is normal.
 AV communication circuits between AV
control unit and headrest display unit LH.
 Video distributor power supply and ground circuits.
Refer to AV- 1 6 3 , "
VIDEO DISTRIBUTOR
: Diagnosis Procedure".
Diagnosis result is not nor-
mal. Location recognition signal circuit between
headrest display unit LH and ground.
Refer to
AV- 1 7 5 , "
Diagnosis Procedure".
Diagnosis function cannot
be started. Headrest display unit LH power supply and
ground circuits.
Refer to
AV- 1 6 2 , "
HEADREST DISPLAY
UNIT : Diagnosis Procedure".
Revision: 2010 May2011 QX56

AV-206
< SYMPTOM DIAGNOSIS >
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
DescriptionINFOID:0000000006216376
NOTE:
For Navigation system operation information, refer to Navigation system Owner's Manual.
BASIC OPERATIONS
NOTE:
Locations stored in the Address Book and other memory f unctions may be lost if the vehicle's battery is dis-
connected or becomes discharged. If this occurs, servic e the vehicle's battery as necessary and re-enter the
information in the Address Book.
RELATED TO VOICE RECOGNITION
Related to Basic Operation
Symptom Possible cause Possible solution
No image is displayed on front dis-
play unit. The display is turned off.
Press “ -” to turn on the display.
The interior of the vehicle becomes the a little less
than 80 °C (176 °F) or high temperature, and the pro-
tection of the display acts, and a display is turned off. Wait until the interior of the vehicle has
cooled down.
No image is displayed on front
(rear) display unit The brightness is at the lowest setting. Adjust the brightness of the display.
The systems in the video mode. Press “DISC-AUX” to change the mode.
Screen not clear. Contrast setting is not appropriate. Adjust the contrast of the display.
No voice guidance is available. Or
The volume is too high or too low. The volume is not set correctly, or it is turned off. Adjust the volume of voice guidance.
Voice guidance is not provided for certain streets
(roads displayed in gray).
This is not a malfunction.
No map is displayed on the screen. A screen other than map screen is displayed. Press “MAP”.
The screen is too dim. The move-
ment is slow. The temperature in the interior of the vehicle is low. Wait until the interior of the vehicle has
warmed up.
Some pixels in the display are dark-
er or brighter than others. This condition is an inherent characteristic of liquid
crystal displays.
This is not a malfunction.
Some menu items cannot be se-
lected on front display unit. Some menu items become unavailable while the ve-
hicle is driven. Park the vehicle in a safe location, and
then operate the navigation system.
A displayed screen cannot be
switched to the “Display Setup”
screen of the headrest display unit
LH (RH). “Display Setup” screen is shown on the headrest
display unit on the other side.
Press “DISP (L)” or “DISP (R)” to switch to
a screen other than “Display Setup”
screen.
The set value can not be initialized
on the “Display Setup” screen of
the headrest display unit LH (RH). No change in each default value before. This is not a malfunction.
Revision: 2010 May2011 QX56

BRC-1
BRAKES
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SECTION BRC
A
B
BRC
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CONTENTS
BRAKE CONTROL SYSTEM
WITH VDC
PRECAUTION ................ ...............................
5
PRECAUTIONS .............................................. .....5
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
5
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect .....................................
5
Precaution for Procedure without Cowl Top Cover ......6
Precaution for Brake System ....................................6
Precaution for Brake Control System ........................6
Precaution for Harness Repair ..................................7
PREPARATION ............................................9
PREPARATION .............................................. .....9
Commercial Service Tools .................................. ......9
SYSTEM DESCRIPTION .............................10
COMPONENT PARTS ................................... ....10
Component Parts Location .................................. ....10
Component Description ...........................................13
ABS Actuator and Electric Unit (Control Unit) .........14
Wheel Sensor and Sensor Rotor ............................14
Stop Lamp Switch ...................................................15
Steering Angle Sensor ............................................15
Yaw Rate/Side/Decel G sensor ...............................15
Brake Fluid Level Switch .........................................15
Parking Brake Switch ..............................................15
VDC OFF Switch .....................................................15
SYSTEM .............................................................16
System Description ............................................. ....16
Fail-safe ..................................................................25
Protection Function .................................................28
VDC FUNCTION .................................................... ....28
VDC FUNCTION : System Description ...................28
TCS FUNCTION ..................................................... ....31
TCS FUNCTION : System Description ....................31
ABS FUNCTION .................................................... ....32
ABS FUNCTION : System Description ....................33
EBD FUNCTION .................................................... ....34
EBD FUNCTION : System Description ....................34
HILL START ASSIST FUNCTION ......................... ....36
hill start assist FUNCTION : System Description ....36
BRAKE LIMITED SLIP DIFFERENTIAL (BLSD)
FUNCTION ............................................................. ....
37
BRAKE LIMITED SLIP DIFFERENTIAL (BLSD)
FUNCTION : System Description ............................
37
DIAGNOSIS SYSTEM [ABS ACTUATOR
AND ELECTRIC UNIT (CONTROL UNIT)] .......
40
CONSULT-III Function ............................................40
ECU DIAGNOSIS INFORMATION ..............45
ABS ACTUATOR AND ELECTRIC UNIT
(CONTROL UNIT) .............................................
45
Reference Value .................................................. ....45
Fail-safe ...................................................................47
Protection Function ..................................................50
DTC Inspection Priority Chart ..................................50
DTC Index ...............................................................51
WIRING DIAGRAM ......................................53
BRAKE CONTROL SYSTEM ...........................53
Wiring Diagram .................................................... ....53
BASIC INSPECTION ...................................60
DIAGNOSIS AND REPAIR WORK FLOW .......60
Work Flow ............................................................ ....60
Diagnostic Work Sheet ............................................61
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

CHG
CHG-1
ELECTRICAL & POWER CONTROL
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SECTION CHG
A
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CONTENTS
CHARGING SYSTEM
PRECAUTION ................
...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect .....................................
3
Precaution for Power Generation Voltage Variable
Control System ..........................................................
4
PREPARATION ............................................5
PREPARATION .............................................. .....5
Special Service Tools .......................................... ......5
Commercial Service Tools ........................................5
SYSTEM DESCRIPTION ..............................6
COMPONENT PARTS ................................... .....6
Component Parts Location .................................. ......6
Component Description ............................................6
SYSTEM ..............................................................7
CHARGING SYSTEM ..................................................7
CHARGING SYSTEM : System Diagram ........... ......7
CHARGING SYSTEM : System Description .............7
POWER GENERATION VOLTAGE VARIABLE
CONTROL SYSTEM .............................................. ......
7
POWER GENERATION VOLTAGE VARIABLE
CONTROL SYSTEM : System Diagram ...................
7
POWER GENERATION VOLTAGE VARIABLE
CONTROL SYSTEM : System Description ...............
7
WIRING DIAGRAM ........ ...............................9
CHARGING SYSTEM ..................................... .....9
Wiring Diagram ................................................... ......9
BASIC INSPECTION ...................................13
DIAGNOSIS AND REPAIR WORKFLOW ........13
Work Flow ............................................................ ....13
CHARGING SYSTEM PRELIMINARY IN-
SPECTION ....................................... .................
16
Inspection Procedure ........................................... ....16
POWER GENERATION VOLTAGE VARI-
ABLE CONTROL SYSTEM OPERATION IN-
SPECTION ....................................... .................
17
Inspection Procedure ........................................... ....17
DTC/CIRCUIT DIAGNOSIS .........................19
B TERMINAL CIRCUIT .....................................19
Description ........................................................... ....19
Diagnosis Procedure ...............................................19
L TERMINAL CIRCUIT (OPEN) ........................20
Description ...............................................................20
Diagnosis Procedure ...............................................20
L TERMINAL CIRCUIT (SHORT) .....................22
Description ...............................................................22
Diagnosis Procedure ...............................................22
S TERMINAL CIRCUIT .....................................23
Description ...............................................................23
Diagnosis Procedure ...............................................23
SYMPTOM DIAGNOSIS ..............................24
CHARGING SYSTEM .......................................24
Symptom Table ................................................... ....24
REMOVAL AND INSTALLATION ...............25
ALTERNATOR ................................. .................25
Exploded View ..................................................... ....25
Removal and Installation .........................................26
Inspection ................................................................28
Revision: 2010 May2011 QX56

CHG-6
< SYSTEM DESCRIPTION >
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts LocationINFOID:0000000006274858
Component DescriptionINFOID:0000000006274859
1. IPDM E/RRefer to PCS-4, "
Component Parts
Location". 2. ECM
Refer to EC-16, "
Component Parts
Location". 3. Battery current sensor
Refer to EC-16, "
Component Parts
Location".
4. Alternator 5. Combination meter (charge warning lamp)
Refer to MWI-6, "
METER SYSTEM :
Component Parts Location".
A. Engine room (RH)
JMMIA0411ZZ
Component part Description
Alternator (IC voltage regulator) IC voltage regulator controls the power generation voltage by the target power genera-
tion voltage based on the received power generation command signal.
When there is no power generation command signal, the alternator performs the normal
power generation according to the characteristic of the IC voltage regulator.
Battery current sensor Battery current sensor is installed to the battery cable at the negative terminal, and it de-
tects the charging/discharging current of the battery and sends the voltage signal to ECM
according to the current value.
Combination meter (C harge warning lamp) The IC voltage regulator warning function activates to illuminate the charge warning
lamp, if any of the following symptoms occur while alternator is operating:
 Excessive voltage is produced.
 No voltage is produced.
ECM Battery current sensor detects the charging/discharging current of the battery. ECM judg-
es the battery condition based on this signal.
ECM judges whether to perform the power generation voltage variable control according
to the battery condition.
When performing the power generation voltage variable control, ECM calculates the tar-
get power generation voltage according to the battery condition and sends the calculated
value as the power generation command value to IPDM E/R.
IPDM E/R IPDM E/R converts the received power generation command value into the power gen-
eration command signal (PWM signal) and sends it to the IC voltage regulator.
Revision: 2010 May2011 QX56