2006 INFINITI QX56 diagram

GI-22
HOW TO USE THIS MANUAL
Revision: November 20092006 QX56

The switch diagram is used in wiring diagrams.
SGI875

HOW TO USE THIS MANUALGI-23
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Reference Area
The Reference Area of the wiring diagram contains references to additional electrical reference pages at the
end of the manual. If connector numbers and titles are shown in the Reference Area of the wiring diagram,
these connector symbols are not shown in the Connector Area.
AbbreviationsEAS001FL
The following ABBREVIATIONS are used:
SGI092A
ABBREVIATION DESCRIPTION
A/C Air Conditioner
A/T Automatic Transaxle/Transmission
ATF Automatic Transmission Fluid
D
1Drive range 1st gear
D
2Drive range 2nd gear

SERVICE INFORMATION FOR ELECTRICAL INCIDENTGI-29
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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 illustra-
tion.
CONNECTORS & 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 termi-
nals. A visual inspection may not reveal this without disconnecting the connector. If the problem occurs inter-
mittently, 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.
SENSORS & RELAYS
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.
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. Vehi-
cle vibration can aggravate a harness which is routed along a bracket or near a screw.
SGI839

GI-40
CONSULT-II CHECKING SYSTEM
Revision: November 20092006 QX56
2. If necessary, turn on the ignition switch.
3. Touch “START (NISSAN BASED VHCL) ” or system shortcut (eg:
ENGINE) on the screen.
CONSULT-II Data Link Connector (DLC) CircuitEAS001TR
INSPECTION PROCEDURE
If the CONSULT-II cannot diagnose the system properly, check the following items:
NOTE:
The preceding schematic is an example and may not be a true representation of the vehicle. The actual DDL1
circuits (CAN lines) from DLC pins 6 and 14 as well as the DDL2 circuit (K-line) from DLC pin 7 may be con-
nected to more than one system. A short in a DDL circuit connected to a control unit in one system may affect
CONSULT-II access to other systems.
BCIA0029E
LAIA0028E
Symptom Check item
CONSULT-II cannot access
any system.

CONSULT-II DLC power supply circuit (Terminal 8) and ground circuit (Terminal 4). For detailed cir-
cuit, refer to EC-635, "
Wiring Diagram" .

CONSULT-II DLC cable and CONSULT-II CONVERTER.
CONSULT-II cannot access
individual system. (Other sys-
tems can be accessed.)

CONSULT-II program card (Check the appropriate CONSULT-II program card for the system.
Refer to GI-39, "
Checking Equipment" .

Power supply and ground circuit for the control unit of the system (For detailed circuit, refer to wir-
ing diagram for each system.)

Open or short circuit between the system and CONSULT-II DLC (For detailed circuit, refer to wiring
diagram for each system.)

Open or short circuit in CAN or K communication line. Refer to LAN-3, "Precautions When Using
CONSULT-II" .

GI-48
IDENTIFICATION INFORMATION
Revision: November 20092006 QX56
Identification NumberEAS001G3
VEHICLE IDENTIFICATION NUMBER ARRANGEMENT
1. Emission control information label 2. Tire placard3. F.M.V.S.S. certification label
4. Vehicle identification number plate 5. Vacuum hose diagram
WAIA0053E
Position Character Qualifier Definition
1 5N3 Manufacturer 5N3: USA produced multi-purpose vehicle
2
3
4 A Engine type A: VK56DE
5 A Vehicle line A: Infiniti QX56
6 0 Model change (0-9)
7 8 Body type 8: 4 door wagon
8A Gross vehicle
weight ratingA: 2WD, 4-wheel ABS, Class E
B: 4WD, 4-wheel ABS, Class E
9 * Check digit (0 to 9 or X) The code for the check digit is determined by a mathematical
computation.
10 6 Model year 2006
11 NManufacturing
plant N: Canton Mississippi
12
XXXXXVehicle serial num-
ber Chassis number
13
14
15
16
17

GW-1
GLASSES, WINDOW SYSTEM & MIRRORS
I BODY
CONTENTS
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PRECAUTIONS .....................................................
..... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Handling for Adhesive and Primer ...................... ..... 3
PREPARATION ...................................................... ..... 4
Special Service Tool ............................................ ..... 4
Commercial Service Tool .................................... ..... 4
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 5
Work Flow ................................................................ 5 CUSTOMER INTERVIEW ................................ ..... 5
DUPLICATE THE NOISE AND TEST DRIVE .. ..... 6
CHECK RELATED SERVICE BULLETINS ...... ..... 6
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ................................................. ..... 6
REPAIR THE CAUSE ...................................... ..... 6
CONFIRM THE REPAIR .................................. ..... 7
Generic Squeak and Rattle Troubleshooting ...... ..... 7
INSTRUMENT PANEL ..................................... ..... 7
CENTER CONSOLE ........................................ ..... 7
DOORS ............................................................ ..... 7
TRUNK ............................................................. ..... 8
SUNROOF/HEADLINER .................................. ..... 8
OVERHEAD CONSOLE (FRONT AND REAR) ..... 8
SEATS .............................................................. ..... 8
UNDERHOOD .................................................. ..... 8
Diagnostic Worksheet ......................................... ..... 9
WINDSHIELD GLASS ........................................... ....11
Removal and Installation ..................................... .... 11
REMOVAL ........................................................ .... 11
INSTALLATION ................................................ .... 11
REAR WINDOW GLASS AND MOLDING ............ ... 13
Removal and Installation ..................................... ... 13
REMOVAL ........................................................ ... 13
INSTALLATION ................................................ ... 14
POWER WINDOW SYSTEM ................................. ... 15
Component Parts and Harness Connector Location ... 15
System Description ............................................. ... 16
MANUAL OPERATION .................................... ... 16
AUTO OPERATION ......................................... ... 18POWER WINDOW SERIAL LINK ....................
... 18
POWER WINDOW LOCK ................................ ... 19
RETAINED POWER OPERATION ................... ... 19
ANTI-PINCH SYSTEM ..................................... ... 19
POWER WINDOW CONTROL BY THE FRONT
DOOR LOCK ASSEMBLY LH (KEY CYLINDER
SWITCH) .......................................................... ... 19
CAN Communication System Description ........... ... 19
Schematic ............................................................ ... 20
Wiring Diagram — WINDOW — ............................. 22
Terminal and Reference Value for Main Power Win-
dow and Door Lock/Unlock Switch ...................... ... 30
Terminal and Reference Value for Power Window
and Door Lock/Unlock Switch RH .......................... 30
Terminal and Reference Value for BCM .............. ... 32
Work Flow ............................................................... 33
CONSULT-II Function (BCM) .............................. ... 33
CONSULT-II INSPECTION PROCEDURE ....... ... 33
ACTIVE TEST ..................................................... 34
WORK SUPPORT ............................................ ... 34
DATA MONITOR .............................................. ... 34
Trouble Diagnoses Symptom Chart .................... ... 35
BCM Power Supply and Ground Circuit Check ... ... 37
Main Power Window and Door Lock/Unlock Switch
Power Supply and Ground Circuit Check ............ ... 38
Power Window and Door Lock/Unlock Switch RH
Power Supply and Ground Circuit Check ............ ... 39
Front Power Window Motor LH Circuit Check ..... ... 40
Front Power Window Motor RH Circuit Check ....... 41
Limit Switch Circuit Check Front LH .................... ... 41
Limit Switch Circuit Check Front RH ................... ... 43
Encoder Circuit Check Front LH .......................... ... 44
Encoder Circuit Check Front RH ......................... ... 46
Door Switch Check ................................................. 48
Front Door Lock Assembly LH (Key Cylinder Switch)
Check .................................................................. ... 49
Power Window Serial Link Check Front LH and RH ... 51
Rear Power Window Control Unit LH or RH Power
Supply and Ground Circuit Check ....................... ... 53
Rear Power Window Switch LH or RH Power Supply

GW-2Revision: November 20092006 QX56
and Ground Circuit Check ...................................
... 54
Rear Power Window Motor LH Circuit Check ......... 54
Rear Power Window Motor RH Circuit Check ..... ... 55
Limit Switch Circuit Check Rear LH and RH ........ ... 56
Encoder Circuit Check Rear LH or RH ................ ... 58
Power Window Serial Link Check Rear LH or RH ... 59
Rear Power Vent Window Switch Circuit Check .. ... 60
Rear Power Vent Window Motor LH Circuit Check ... 61
Rear Power Vent Window Motor RH Circuit Check ... 61
Rear Power Vent Window Relay (OPEN) Check . ... 62
Rear Power Vent Window Relay (CLOSE) Check ... 63
FRONT DOOR GLASS AND REGULATOR .......... ... 65
Removal and Installation ..................................... ... 65
FRONT DOOR GLASS .................................... ... 65
FRONT DOOR GLASS REGULATOR ............. ... 66
SETTING AFTER INSTALLATION ................... ... 66
REAR DOOR GLASS AND REGULATOR ............ ... 68
Removal and Installation ..................................... ... 68
REAR DOOR GLASS ....................................... ... 68
REAR DOOR GLASS REGULATOR ................ ... 69
SETTING AFTER INSTALLATION ................... ... 70
SIDE WINDOW GLASS ............................................ 71 Removal and Installation ..................................... ... 71
REMOVAL ........................................................ ... 71
INSTALLATION ................................................. ... 71
INSIDE MIRROR ....................................................... 72 Wiring Diagram — I/MIRR — .............................. ... 72
Removal and Installation ..................................... ... 73
INSIDE MIRROR .............................................. ... 73
REAR WINDOW DEFOGGER ............................... ... 74
Component Parts and Harness Connector Location ... 74
System Description .............................................. ... 75
CAN Communication System Description ........... ... 75Schematic ............................................................
... 76
Wiring Diagram — DEF — ................................... ... 77
Terminal and Reference Value for BCM ............... ... 80
Terminal and Reference Value for IPDM E/R ....... ... 80
Work Flow ............................................................ ... 80
CONSULT-II Function (BCM) ............................... ... 81
CONSULT-II BASIC OPERATION PROCEDURE ... 81
DATA MONITOR ............................................... ... 82
ACTIVE TEST ................................................... ... 82
Trouble Diagnoses Symptom Chart ..................... ... 82
BCM Power Supply and Ground Circuit Check ... ... 84
Rear Window Defogger Switch Circuit Check ...... ... 85
Rear Window Defogger Circuit Check ................. ... 86
Door Mirror Defogger Power Supply Circuit Check ... 87
Door Mirror LH (Door Mirror Defogger) Circuit Check ... 89
Door Mirror RH (Door Mirror Defogger) Circuit
Check ................................................................... ... 90
Rear Window Defogger Signal Check ................. ... 90
Filament Check .................................................... ... 91
Filament Repair .................................................... ... 92
REPAIR EQUIPMENT ...................................... ... 92
REPAIRING PROCEDURE .............................. ... 92
DOOR MIRROR ...................................................... ... 93
Wiring Diagram — MIRROR — ........................... ... 93
Door Mirror Assembly .......................................... ... 94
REMOVAL ......................................................... ... 94
INSTALLATION ................................................. ... 94
Door Mirror Glass ................................................. ... 94
REMOVAL ......................................................... ... 94
INSTALLATION ................................................. ... 95

GW-22
POWER WINDOW SYSTEM
Revision: November 20092006 QX56
Wiring Diagram — WINDOW —EIS005XR
WIWA1320E