INFINITI QX56 2011 Factory Service Manual

MIR-36
< REMOVAL AND INSTALLATION >
OUTSIDE MIRROR
DOOR MIRROR COVER : Re moval and Installation
INFOID:0000000006257240
CAUTION:
Never damage the mirror bodies.
REMOVAL
1. Remove the glass mirror. Refer to MIR-35, "GLASS MIRROR : Removal and Installation".
2. Remove the pawls (A), and disassemble door mirror cover from door mirror assembly.
INSTALLATION
Note the following item, and then install in the reverse order of removal.
CAUTION:
After installation, visually check that all the pawls are securely engaged.
SIDE CAMERA FINISHER ASSEMBLY
SIDE CAMERA FINISHER ASSEMBLY : Removal and InstallationINFOID:0000000006257241
Disassembly
1. Remove door mirror assembly from front door panel. Refer to MIR-32, "DOOR MIRROR ASSEMBLY :
Removal and Installation".
2. Remove glass mirror. Refer to MIR-35, "
GLASS MIRROR : Removal and Installation".
3. Remove door mirror cover. Refer to MIR-36, "
DOOR MIRROR COVER : Removal and Installation".
4. Remove side camera finisher (1) fixing screw (A).
5. Disconnect harness connector (B), and remove screws (C) and pawl (D) fixing the side camera finisher (1) to housing.
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Revision: 2010 May2011 QX56

OUTSIDE MIRRORMIR-37
< REMOVAL AND INSTALLATION >
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6. Remove side turn signal lamp fixing screws (E) and remove side turn signal lamp.
NOTE:
Pull slightly side camera finisher (1) covering side turn signal
lamp bottom screw.
7. Remove side camera finisher assembly.
8. Remove around view camera. Refer to AV-233, "
Removal and Installation".
Assembly
Assemble in the reverse order of disassembly.
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Revision: 2010 May2011 QX56

MIR-38
< REMOVAL AND INSTALLATION >
DOOR MIRROR REMOTE CONTROL SWITCH
DOOR MIRROR REMOTE CONTROL SWITCH
Removal and InstallationINFOID:0000000006257242
REMOVAL
1. Remove the instrument lower panel LH. Refer to IP-14, "Removal and Installation".
2. Remove the screws (A).
3. Remove the door mirror remote control switch (1) from instrument lower panel LH (2).
INSTALLATION
Install in the reverse order of removal.
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MWI-1
DRIVER INFORMATION & MULTIMEDIA
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SECTION MWI
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CONTENTS
METER, WARNING LAMP & INDICATOR
PRECAUTION ................ ...............................4
PRECAUTIONS .............................................. .....4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
4
PREPARATION ............................................5
PREPARATION .............................................. .....5
Commercial Service Tools .................................. ......5
SYSTEM DESCRIPTION ..............................6
COMPONENT PARTS ................................... .....6
METER SYSTEM .........................................................6
METER SYSTEM : Component Parts Location .. ......6
METER SYSTEM : Component Description .............7
CLOCK .................................................................. ......7
CLOCK : Component Parts Location ........................8
SYSTEM ..............................................................9
METER SYSTEM .........................................................9
METER SYSTEM : System Diagram ........................9
METER SYSTEM : System Description ....................9
METER SYSTEM : Fail-Safe ..................................12
SPEEDOMETER ................ ........................................13
SPEEDOMETER : System Diagram ................... ....13
SPEEDOMETER : System Description ...................13
TACHOMETER ...................................................... ....13
TACHOMETER : System Diagram .........................14
TACHOMETER : System Description .....................14
ENGINE COOLANT TEMPERATURE GAUGE .... ....14
ENGINE COOLANT TEMPERATURE GAUGE :
System Diagram ......................................................
14
ENGINE COOLANT TEMPERATURE GAUGE :
System Description .................................................
14
FUEL GAUGE ........................................................ ....14
FUEL GAUGE : System Diagram ............................14
FUEL GAUGE : System Description .......................14
ENGINE OIL PRESSURE GAUGE ............................15
ENGINE OIL PRESSURE GAUGE : System Dia-
gram .................................................................... ....
15
ENGINE OIL PRESSURE GAUGE : System De-
scription ...................................................................
15
VOLTMETER ......................................................... ....15
VOLTMETER : System Diagram .............................15
VOLTMETER : System Description .........................15
OIL PRESSURE WARNING LAMP ...........................15
OIL PRESSURE WARNING LAMP : System Dia-
gram .................................................................... ....
15
OIL PRESSURE WARNING LAMP : System De-
scription ...................................................................
16
MASTER WARNING LAMP ................................... ....16
MASTER WARNING LAMP : System Diagram .......16
MASTER WARNING LAMP : System Description ....16
METER ILLUMINATION CONTROL ..................... ....16
METER ILLUMINATION CONTROL : System Di-
agram ......................................................................
16
METER ILLUMINATION CONTROL : System De-
scription ...................................................................
16
METER EFFECT FUNCTION ................................ ....17
METER EFFECT FUNCTION : System Diagram ....17
METER EFFECT FUNCTION : System Descrip-
tion ...........................................................................
17
INFORMATION DISPLAY ...................................... ....19
INFORMATION DISPLAY : System Diagram ..........19
INFORMATION DISPLAY : System Description .....20
OPERATION .....................................................28
Switch Name and Function ......................................28
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MWI-2
DIAGNOSIS SYSTEM (COMBINATION
METER) ..............................................................
29
On Board Diagnosis Function .............................. ...29
CONSULT-III Function ...........................................30
ECU DIAGNOSIS INFORMATION ..............35
COMBINATION METER ................................. ...35
Reference Value .................................................. ...35
Fail-Safe .................................................................42
DTC Index ..............................................................43
IPDM E/R ...........................................................44
List of ECU Reference ......................................... ...44
WIRING DIAGRAM .....................................45
METER SYSTEM ............................................ ...45
Wiring Diagram .................................................... ...45
CLOCK ...............................................................55
Wiring Diagram .................................................... ...55
BASIC INSPECTION ...................................57
DIAGNOSIS AND REPAIR WORKFLOW
(METER SYSTEM ) .......................................... ...
57
Work flow ............................................................. ...57
DTC/CIRCUIT DIAGNOSIS ...................... ...59
U1000 CAN COMM CIRCUIT ......................... ...59
Description ........................................................... ...59
DTC Logic ...............................................................59
Diagnosis Procedure .............................................59
U1010 CONTROL UNIT (CAN) .........................60
Description ........................................................... ...60
DTC Logic ...............................................................60
Diagnosis Procedure ..............................................60
B2205 VEHICLE SPEED ...................................61
Description ........................................................... ...61
DTC Logic ...............................................................61
Diagnosis Procedure .............................................61
B2267 ENGINE SPEED .....................................62
Description ........................................................... ...62
DTC Logic ...............................................................62
Diagnosis Procedure ..............................................62
B2268 WATER TEMP ........................................63
Description ........................................................... ...63
DTC Logic ...............................................................63
Diagnosis Procedure ..............................................63
POWER SUPPLY AND GROUND CIRCUIT .....64
COMBINATION METER ........................................ ...64
COMBINATION METER : Diagnosis Procedure ....64
TRIP RESET AND ILLUMINATION CON-
TROL SWITCH SIGNAL CIRCUIT ....................
65
Diagnosis Procedure ............................................ ...65
Component Inspection ............................................66
TRIP COMPUTER SWITCH SIGNAL CIRCUIT
...
67
Diagnosis Procedure ............................................ ...67
Component Inspection ............................................68
FUEL LEVEL SENSOR SIGNAL CIRCUIT .......69
Component Function Check ................................ ...69
Diagnosis Procedure ..............................................69
Component Inspection ............................................70
OIL PRESSURE SWITCH SIGNAL CIRCUIT ...71
Component Function Check ...................................71
Diagnosis Procedure ...............................................71
Component Inspection ............................................71
WASHER LEVEL SWITCH SIGNAL CIRCUIT ...73
Diagnosis Procedure ............................................ ...73
Component Inspection ............................................73
A/C AUTO AMP. CONNECTION RECOGNI-
TION SIGNAL CIRCUIT ....................................
74
Diagnosis Procedure ........................................... ...74
SYMPTOM DIAGNOSIS ............................75
THE FUEL GAUGE INDICATOR DOES NOT
OPERATE ....................................................... ...
75
Description ........................................................... ...75
Diagnosis Procedure ...............................................75
THE TRIP RESET AND ILLUMINATION CON-
TROL SWITCH IS INOPERATIVE ....................
76
Description ........................................................... ...76
Diagnosis Procedure ...............................................76
THE TRIP COMPUTER SWITCH IS INOPER-
ATIVE .................................................................
77
Description ........................................................... ...77
Diagnosis Procedure ...............................................77
THE OIL PRESSURE WARNING LAMP
DOES NOT TURN ON .................................... ...
78
Description ........................................................... ...78
Diagnosis Procedure ...............................................78
THE OIL PRESSURE WARNING LAMP
DOES NOT TURN OFF .................................. ...
79
Description ........................................................... ...79
Diagnosis Procedure ...............................................79
THE PARKING BRAKE RELEASE WARNING
CONTINUES DISPLAYING, OR DOES NOT
DISPLAY ............................................................
80
Description ........................................................... ...80
Diagnosis Procedure ...............................................80
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THE LOW WASHER FLUID WARNING CON-
TINUES DISPLAYING, or DOES NOT DIS-
PLAY .............................................................. ....
81
Description .......................................................... ....81
Diagnosis Procedure ...............................................81
THE DOOR OPEN WARNING CONTINUES
DISPLAYING, OR DOES NOT DISPLAY ..........
82
Description .......................................................... ....82
Diagnosis Procedure ...............................................82
THE AMBIENT TEMPERATURE DISPLAY IS
INCORRECT .......................................................
83
Description .......................................................... ....83
Diagnosis Procedure ...............................................83
NORMAL OPERATING CONDITION .................84
INFORMATION DISPLAY ..................................... ....84
INFORMATION DISPLAY : Description ..................84
REMOVAL AND INSTALLATION ...............85
COMBINATION METER ...................................85
Exploded View ..................................................... ....85
Removal and Installation .........................................85
Disassembly and Assembly .....................................85
TRIP RESET AND ILLUMINATION CON-
TROL SWITCH ..................................................
86
Exploded View .........................................................86
Removal and Installation .........................................86
TRIP COMPUTER SWITCH ..............................87
Exploded View .........................................................87
Removal and Installation .........................................87
CLOCK ..............................................................88
Exploded View .........................................................88
Removal and Installation .........................................88
Revision: 2010 May2011 QX56

MWI-4
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006369687
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.
Revision: 2010 May2011 QX56

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PREPARATIONMWI-5
< PREPARATION >
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PREPARATION
PREPARATION
Commercial Service ToolsINFOID:0000000006222202
Tool name Description
Power tool Loosening screws
PBIC0191E
Revision: 2010 May2011 QX56

MWI-6
< SYSTEM DESCRIPTION >
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
METER SYSTEM
METER SYSTEM : Component Parts LocationINFOID:0000000006221690
1.IPDM E/R
Refer to
PCS-4, "Component Parts
Location". 2.
ECM
Refer to
EC-16, "
Component Parts
Location". 3. Washer level switch
4. Oil pressure switch
Refer to
EM-57, "
Exploded View".5. Ambient sensor 6. A/C auto amp.
Refer to
HAC-6, "
FRONT AUTO-
MATIC AIR CONDITIONING SYS-
TEM : Component Parts Location".
7. TCM
Refer to
TM-10, "
A/T CONTROL
SYSTEM : Componen t Parts Loca-
tion". 8.ABS actuator and electric unit (con-
trol unit)
Refer to
BRC-10, "
Component Parts
Location". 9.BCM
Refer to
BCS-4, "
BODY CONTROL
SYSTEM : Component Parts Loca-
tion".
10. Fuel level sensor unit 11. Trip computer switch 12. Combination meter
13. Trip reset and illumination control
switch 14. Parking brake switch
A. Under of left side second seat
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COMPONENT PARTSMWI-7
< SYSTEM DESCRIPTION >
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METER SYSTEM : Com ponent DescriptionINFOID:0000000006221691
CLOCK
Unit Description
Combination meter Controls the following with the signals received from each unit via CAN communication and the sig-
nals from switches and sensors.
 Speedometer
 Tachometer
 Engine coolant temperature gauge
 Fuel gauge
 Engine oil pressure gauge
 Voltmeter
 Warning lamps
 Indicator lamps
 Meter illumination control
 Meter effect function
 Information display
Trip computer switch Transmits the following signals to the combination meter.
 Enter switch signal
 Select switch signal
Trip reset and illumination con-
trol switch Transmits the following signals to the combination meter.
 Trip reset switch signal
 Illumination control switch signal (+)
 Illumination control switch signal (
−)
ECM Transmits the following signals to the combination meter via CAN communication.
 Engine speed signal
 Engine coolant temperature signal
 Engine status signal
 Fuel consumption monitor signal
ABS actuator and electric unit
(control unit) Transmits the vehicle speed signal to the combination meter via CAN communication.
IPDM E/R Transmits the oil pressure switch signal to the BCM via CAN communication.
BCM Transmits the following signals to the combination meter via CAN communication.
 Oil pressure switch signal
 Position light request signal
 Dimmer signal
 Door switch signal
 Meter ring illumination request signal
 Starter relay status signal
TCM Transmits the shift position signal to the combination meter via CAN communication.
A/T shift selector Transmits the following signals to the combination meter.
 Manual mode signal
 Non-manual mode signal
 Manual mode shift up signal
 Manual mode shift down signal
Fuel level sensor unit Transmits the fuel level sensor signal to the combination meter.
Oil pressure switch Transmits the oil pressure switch signal to the IPDM E/R.
Ambient sensor Transmits the ambient sensor signal to the combination meter.
A/C auto amp. Transmits the A/C auto amp. connection recognition signal to the combination meter.
Parking brake switch Transmits the parking brake switch signal to the combination meter.
Washer level switch Transmits the washer level switch signal to the combination meter.
Revision: 2010 May2011 QX56