2006 INFINITI QX56 diagram

LT-148
INTERIOR ROOM LAMP
Revision: November 20092006 QX56
How to Proceed With Trouble DiagnosisEKS00BBA
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 3 5 , "
System Description" .
3. Carry out the Preliminary Check. Refer to LT- 1 4 8 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the interior room lamp operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. Inspection End.
Preliminary CheckEKS00BBB
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES OR FUSIBLE LINK
Check for blown BCM fuses or fusible link.
Refer to LT- 1 4 0 , "
Wiring Diagram — INT/L —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse or fusible link. Refer to PG-4, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Disconnect BCM connectors.
2. Check voltage between BCM connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open between BCM and fuse or fusible link.
3. CHECK GROUND CIRCUIT
Check continuity between BCM and ground.
OK or NG
OK >> Inspection End.
NG >> Check harness ground circuit.
Unit Power sourceFuse and fusible link No.
BCM Battery f
22
Ignition switch ON or START position 59
TerminalsIgnition switch position
(+) (– )O FF O N
Connector Terminal
M20 57
Ground Battery voltage Battery voltage
70 Battery voltage Battery voltage
M18 38 0V Battery voltage
WKIA1478E
Terminals
Continuity
Connector Terminal
M20 67Ground Yes
LIIA0915E

ILLUMINATIONLT-163
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LT
Revision: November 2009 2006 QX56
Wiring Diagram — ILL —EKS00BBM
WKWA3675E

PARKING BRAKE SYSTEMPB-3
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M A
B
PB
Revision: November 2009 2006 QX56
PARKING BRAKE SYSTEMPFP:36010
On-Vehicle ServiceEFS0068J
PEDAL STROKE

When parking brake pedal is operated with the specified force, make sure the stroke is within the specified
number of notches. Check by listening and counting the ratchet clicks.
INSPECTION

Make sure the components are attached properly, checking for looseness or backlash.

Check parking brake pedal assembly for bends, damage and cracks, and replace if necessary.

Check cable for wear and damage, and replace if necessary.

Check parking brake warning lamp switch for malfunction, and replace if necessary. Refer to DI-32, "Wir-
ing Diagram — WARN —" .
ADJUSTMENT
1. Remove the lower instrument panel LH. Refer to IP-13, "INSTRUMENT LOWER COVER LH" .
2. Partially engage parking brake pedal to access adjusting nut.
3. Insert a deep socket wrench to rotate adjusting nut and loosen cable sufficiently. Then, disengage the parking brake pedal.
4. Remove the wheel and tire using power tool.
5. Remove the disc rotor and measure inner diameter at widest point using Tool.
6. Transfer measurement less 0.6 mm to the parking brake shoes and adjust accordingly.
7. Using wheel nuts, secure the disc to the hub to prevent it from tilting.
8. Rotate the disc rotor to make sure there is no drag.
9. Adjust cable as follows:
a. Operate pedal 10 or more times with a force of 490 N (50 kg-f, 110 lb-f).
b. Rotate adjusting nut with deep socket to adjust pedal stroke to specification.
c. With parking brake pedal completely disengaged, make sure there is no drag on the parking brake.
10. Install the disc rotor.
11. Install the wheel and tire using power tool.
12. Install the lower instrument panel LH. Refer to IP-13, "
INSTRU-
MENT LOWER COVER LH" .
Pedal stroke : 3
− 4 notches [under force of 196 N (20.0 kg-f, 44.1 lb-f)]
WFIA0165E
Tool number : — (J-21177-A)
Pedal stroke : 3 − 4 notches [under force of
196 N (20.0 kg-f, 44.1 lb-f)]
WFIA0166E

PG-1
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
K ELECTRICAL
CONTENTS
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SECTION
A
B
PG
Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
POWER SUPPLY ROUTING CIRCUIT ................. ..... 4
Schematic ........................................................... ..... 4
Wiring Diagram — POWER — ................................. 6 BATTERY POWER SUPPLY — IGNITION SW.
IN ANY POSITION ................................................ 6
ACCESSORY POWER SUPPLY — IGNITION
SW. IN ACC OR ON ............................................. 11
IGNITION POWER SUPPLY — IGNITION SW.
IN ON ............................................................... ... 12
IGNITION POWER SUPPLY — IGNITION SW.
IN ON AND/OR START .................................... ... 13
Fuse .................................................................... ... 17
Fusible Link ......................................................... ... 17
Circuit Breaker (Built Into BCM) .......................... ... 17
IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM) ................................... ... 18
System Description ............................................. ... 18
SYSTEMS CONTROLLED BY IPDM E/R ........ ... 18
CAN COMMUNICATION LINE CONTROL ...... ... 18
IPDM E/R STATUS CONTROL ........................ ... 19
CAN Communication System Description ........... ... 19
Function of Detecting Ignition Relay Malfunction ... 19
CONSULT-II Function IPDM E/R ......................... ... 20
CONSULT-II BASIC OPERATION ................... ... 20
SELF-DIAGNOSTIC RESULTS ....................... ... 21
DATA MONITOR .............................................. ... 21
ACTIVE TEST .................................................. ... 23
Auto Active Test .................................................. ... 24
DESCRIPTION ................................................. ... 24
OPERATION PROCEDURE ............................ ... 24
INSPECTION IN AUTO ACTIVE TEST MODE ... 24
Schematic ........................................................... ... 26
IPDM E/R Terminal Arrangement ........................ ... 27
IPDM E/R Power/Ground Circuit Inspection ....... ... 28Inspection with CONSULT-II (Self-Diagnosis) .....
... 29
Removal and Installation of IPDM E/R ................ ... 30
REMOVAL ........................................................ ... 30
INSTALLATION ................................................ ... 30
GROUND CIRCUIT ................................................ ... 31
Ground Distribution ................................................. 31 MAIN HARNESS ................................................. 31
ENGINE ROOM HARNESS ............................. ... 34
ENGINE CONTROL HARNESS ....................... ... 37
BODY HARNESS ............................................. ... 38
BODY NO. 2 HARNESS .................................. ... 39
BACK DOOR NO. 2 RH HARNESS ................. ... 40
HARNESS .............................................................. ... 41
Harness Layout ...................................................... 41 HOW TO READ HARNESS LAYOUT .............. ... 41
OUTLINE .......................................................... ... 42
MAIN HARNESS ................................................. 43
ENGINE ROOM HARNESS (LH VIEW) ........... ... 45
ENGINE ROOM HARNESS (RH VIEW) .......... ... 48
ENGINE CONTROL HARNESS ....................... ... 50
CHASSIS HARNESS ....................................... ... 52
BODY HARNESS ............................................. ... 54
BODY NO. 2 HARNESS .................................. ... 56
ROOM LAMP HARNESS ................................. ... 58
FRONT DOOR LH HARNESS ......................... ... 59
FRONT DOOR RH HARNESS ......................... ... 59
REAR DOOR LH HARNESS ............................ ... 60
REAR DOOR RH HARNESS ........................... ... 60
BACK DOOR HARNESS ................................. ... 61
Wiring Diagram Codes (Cell Codes) ................... ... 62
ELECTRICAL UNITS LOCATION ......................... ... 65
Electrical Units Location ...................................... ... 65
ENGINE COMPARTMENT ............................... ... 65
PASSENGER COMPARTMENT ...................... ... 66
HARNESS CONNECTOR ...................................... ... 68
Description ........................................................... ... 68
HARNESS CONNECTOR (TAB-LOCKING
TYPE) ............................................................... ... 68
HARNESS CONNECTOR (SLIDE-LOCKING

PG-6
POWER SUPPLY ROUTING CIRCUIT
Revision: November 20092006 QX56
Wiring Diagram — POWER —EKS00BN1
BATTERY POWER SUPPLY — IGNITION SW. IN ANY POSITION
WKWA3820E

PG-62
HARNESS
Revision: November 20092006 QX56
Wiring Diagram Codes (Cell Codes)EKS00BNE
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
CodeSection Wiring Diagram Name
A/C,A ATC Auto Air Conditioner
A/SUSP RSU Rear Air Suspension
AF1B1 EC Air Fuel Ratio (A/F) Sensor 1 (Bank 1)
AF1B2 EC Air Fuel Ratio (A/F) Sensor 1 (Bank 2)
AF1HB1 EC Air Fuel Ratio (A/F) Sensor 1 (Bank 1)
AF1HB2 EC Air Fuel Ratio (A/F) Sensor 1 (Bank 2)
APPS1 EC Accelerator Pedal Position Sensor
APPS2 EC Accelerator Pedal Position Sensor
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC ASCD Brake Switch
ASC/SW EC ASCD Steering Switch
ASCBOF EC ASCD Brake Switch
ASCIND EC ASCD Indicator
A/T AT A/T Assembly
AT/IND DI A/T Indicator Lamp
AUDIO AV Audio
AUT/DP SE Automatic Drive Positioner
AUTO/L LT Auto Light Control
B/CLOS BL Back Door Auto Closure System
BACK/L LT Back-up Lamp
BRK/SW EC Brake Switch
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
CLOCK DI Clock
COOL/F EC Cooling Fan Control
COMBSW LT Combination Switch
COMM AV Audio Visual Communication System
COMPAS DI Compass and Thermometer
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp - With Daytime Light System
DVD AV DVD Entertainment System
ECM/PW EC ECM Power Supply for Back-Up
ECTS EC Engine Coolant Temperature Sensor
ETC1 EC Electric Throttle Control Function
ETC2 EC Throttle Control Motor Relay
ETC3 EC Throttle Control Motor
F/FOG LT Front Fog Lamp
F/PUMP EC Fuel Pump
FTTS EC Fuel Tank Temperature Sensor
FUELB1 EC Fuel Injection System Bank 1
FUELB2 EC Fuel Injection System Bank 2
H/AIM LT Headlamp Aiming Control
H/PHON AV Hands Free Telephone
H/LAMP LT Headlamp

RF-1
ROOF
I BODY
CONTENTS
C
DE
F
G H
J
K L
M
SECTION
A
B
RF
Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 2
Precautions ......................................................... ..... 2
PREPARATION ...................................................... ..... 3
Special Service Tool ............................................ ..... 3
Commercial Service Tool .................................... ..... 3
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 4
Work Flow ................................................................ 4 CUSTOMER INTERVIEW ................................ ..... 4
DUPLICATE THE NOISE AND TEST DRIVE .. ..... 5
CHECK RELATED SERVICE BULLETINS ...... ..... 5
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ................................................. ..... 5
REPAIR THE CAUSE ...................................... ..... 5
CONFIRM THE REPAIR .................................. ..... 6
Generic Squeak and Rattle Troubleshooting ...... ..... 6
INSTRUMENT PANEL ..................................... ..... 6
CENTER CONSOLE ........................................ ..... 6
DOORS ............................................................ ..... 6
TRUNK ............................................................. ..... 7
SUNROOF/HEADLINING ................................ ..... 7
OVERHEAD CONSOLE (FRONT AND REAR) ..... 7
SEATS .............................................................. ..... 7
UNDERHOOD .................................................. ..... 7
Diagnostic Worksheet ......................................... ..... 8
SUNROOF ............................................................. ... 10
Component Parts and Harness Connector Location ... 10
System Description ............................................. ... 10
OUTLINE .......................................................... ... 10
OPERATION .................................................... ... 10RETAINED POWER OPERATION ...................
... 11
MEMORY RESET PROCEDURE .................... ... 11
INTERRUPTION DETECTION FUNCTION ..... ... 11
CAN Communication System Description ........... ... 12
Wiring Diagram — SROOF — ................................ 13
Terminals and Reference Values for BCM ........... ... 15
Terminals and Reference Values for Sunroof Motor
Assembly ............................................................. ... 15
Work Flow ............................................................... 15
CONSULT-II Function (BCM) .............................. ... 16
CONSULT-II OPERATION ................................ ... 16
Work Support ....................................................... ... 17
Active Test .............................................................. 17
Data Monitor ........................................................... 17
Trouble Diagnosis Chart by Symptom ................. ... 17
BCM Power Supply and Ground Circuit Check ... ... 18
Sunroof Switch System Check ............................ ... 19
Sunroof Motor Assembly Power Supply and Ground
Circuit Check ....................................................... ... 20
Door Switch Check ................................................. 21
Fitting Adjustment ................................................ ... 23
GAP ADJUSTMENT ......................................... ... 23
HEIGHT DIFFERENCE ADJUSTMENT ........... ... 24
Removal and Installation ..................................... ... 24
SUNROOF UNIT .............................................. ... 26
GLASS LID ASSEMBLY ................................... ... 26
WIND DEFLECTOR ......................................... ... 27
SUNSHADE ASSEMBLY .................................... 27
SUNROOF MOTOR ASSEMBLY ..................... ... 27
DRAIN HOSES ................................................. ... 28
WEATHERSTRIP ............................................. ... 29
LINK AND WIRE ASSEMBLY .......................... ... 29

SUNROOFRF-13
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Revision: November 2009 2006 QX56
Wiring Diagram — SROOF —EIS004VS
WIWA0170E