2006 INFINITI QX56 wiring diagram

SE-86
HEATED SEAT
Revision: November 20092006 QX56
Wiring Diagram — HSEAT —EIS004YR
WIWA0587E

SRS-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
H RESTRAINTS
CONTENTS
C
DE
F
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I
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K L
M
SECTION
A
B
SRS
Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for SRS “AIR BAG” and “SEAT BELT
PRE-TENSIONER” Service ................................ ..... 3
Occupant Classification System Precaution ....... ..... 3
PREPARATION ...................................................... ..... 4
Special Service Tools .......................................... ..... 4
Commercial Service Tools ................................... ..... 4
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) .. ..... 5
SRS Configuration .............................................. ..... 5
Front Seat Belt Pre-tensioner with Load Limiter . ..... 6
Front Side Air Bag .................................................... 6
Side Curtain Air Bag ............................................ ..... 6
Occupant Classification System (OCS) .............. ..... 6
Direct-connect SRS Component Connectors ...... ..... 7
TROUBLE DIAGNOSIS ......................................... ..... 8
Trouble Diagnosis Introduction ............................ ..... 8
DIAGNOSIS FUNCTION .................................. ..... 8
HOW TO PERFORM TROUBLE DIAGNOSES
FOR QUICK AND ACCURATE REPAIR .......... ..... 8
WORK FLOW ........................................................ 9
SRS Components Parts Location ........................ ... 10
Schematic ........................................................... .... 11
Wiring Diagram— SRS — ................................... ... 12
CONSULT-II Function (AIR BAG) ........................ ... 18
CONSULT-II Function ......................................... ... 18
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITH CONSULT-II ........................................... ... 18
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 19
Self-Diagnosis Function (Without CONSULT-II) .. ... 19
HOW TO CHANGE SELF-DIAGNOSIS MODE ... 20
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 20
SRS Operation Check ......................................... ... 20
DIAGNOSTIC PROCEDURE 1 ........................ ... 20
Trouble Diagnosis With CONSULT-II .................. ... 22
DIAGNOSTIC PROCEDURE 2 ........................ ... 22
DIAGNOSTIC PROCEDURE 3 ........................ ... 28DIAGNOSTIC PROCEDURE 4 (CONTINUED
FROM DIAGNOSTIC PROCEDURE 2) ...........
... 31
DIAGNOSTIC PROCEDURE 5 ........................ ... 31
Trouble Diagnosis Without CONSULT-II .............. ... 38
DIAGNOSTIC PROCEDURE 6 ........................ ... 38
WARNING LAMP FLASH CODE CHART ........ ... 39
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn Off ......................................................... ... 44
DIAGNOSTIC PROCEDURE 6 ........................ ... 44
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn On ......................................................... ... 45
DIAGNOSTIC PROCEDURE 7 ........................ ... 45
DRIVER AIR BAG MODULE ................................. ... 46
Removal and Installation ..................................... ... 46
REMOVAL ........................................................ ... 46
INSTALLATION ................................................ ... 47
SPIRAL CABLE ..................................................... ... 48
Removal and Installation ..................................... ... 48
REMOVAL ........................................................ ... 48
INSTALLATION ................................................ ... 49
FRONT PASSENGER AIR BAG MODULE ........... ... 50
Removal and Installation ..................................... ... 50
REMOVAL ........................................................ ... 50
INSTALLATION ................................................ ... 50
WIRING HARNESS MODIFICATION ............... ... 51
SIDE CURTAIN AIR BAG MODULE ..................... ... 53
Removal and Installation ..................................... ... 53
REMOVAL ........................................................ ... 53
INSTALLATION ................................................ ... 54
CRASH ZONE SENSOR ........................................ ... 55
Removal and Installation ..................................... ... 55
REMOVAL ........................................................ ... 55
INSTALLATION ................................................ ... 55
SIDE AIR BAG (SATELLITE) SENSOR ................ ... 56
Removal and Installation ..................................... ... 56
REMOVAL ........................................................ ... 56
INSTALLATION ................................................ ... 56
FRONT SEAT BELT PRE-TENSIONER ................ ... 57
Removal and Installation ..................................... ... 57

SRS-8
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
TROUBLE DIAGNOSISPFP:00004
Trouble Diagnosis IntroductionEHS0016M
CAUTION:

Do not use electrical test equipment on any circuit related to the SRS unless instructed to do so in
this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harness con-
nectors.

Do not attempt to repair, splice or modify SRS wiring harnesses. If a harness is damaged, replace
it with a new one.

Keep ground connections clean.
DIAGNOSIS FUNCTION
The SRS self-diagnosis results can be read by using “AIR BAG” warning lamp and/or CONSULT-II.
The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system mal-
function through the operation of the “AIR BAG” warning lamp.
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the “AIR BAG” warning lamp and CONSULT-II are as follows:
HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.
Information From Customer
WHAT - Vehicle model
WHEN - Date, Frequencies
WHERE - Road conditions
HOW - Operating conditions, Symptoms
Preliminary Check
Check that the following parts are in good order.

Battery (Refer to SC-4, "How to Handle Battery" .)

Fuse (Refer to SRS-12, "Wiring Diagram— SRS —" .)

System component-to-harness connections
User mode Diagnosis mode Display type
“ AIR BAG ” warning lamp XXON-OFF operation
CONSULT-II —XMonitoring

SRS-12
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
Wiring Diagram— SRS —EHS0016P
WHWA0328E

TF-1
TRANSFER
D DRIVELINE/AXLE
CONTENTS
CE F
G H
I
J
K L
M
SECTION
A
B
TF
Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 4
Precautions for Transfer Assembly and Transfer
Control Unit Replacement ................................... ..... 4
METHOD FOR POSITION ADJUSTMENT ...... ..... 4
Precautions ......................................................... ..... 4
Service Notice .......................................................... 5
PREPARATION ...................................................... ..... 6
Special Service Tools .......................................... ..... 6
Commercial Service Tools ................................... ..... 9
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ... 10
NVH Troubleshooting Chart ................................ ... 10
TRANSFER FLUID ................................................ ....11
Replacement ....................................................... .... 11
DRAINING ........................................................ .... 11
FILLING ............................................................ .... 11
Inspection ............................................................ .... 11
FLUID LEAKAGE AND FLUID LEVEL ............. .... 11
ALL-MODE 4WD SYSTEM ................................... ... 12
Cross-section View ............................................. ... 12
Power Transfer .................................................... ... 13
POWER TRANSFER DIAGRAM ..................... ... 13
POWER TRANSFER FLOW ............................ ... 14
System Description ............................................. ... 15
CONTROL SYSTEM ........................................ ... 15
TRANSFER MOTOR ....................................... ... 16
WAIT DETECTION SWITCH ........................... ... 17
NEUTRAL-4LO SWITCH ................................. ... 17
ATP SWITCH ................................................... ... 17
2-4WD SHIFT SOLENOID VALVE ................... ... 17
CLUTCH PRESSURE SOLENOID VALVE ...... ... 18
LINE PRESSURE SWITCH ............................. ... 18
CLUTCH PRESSURE SWITCH ....................... ... 18
TRANSFER FLUID TEMPERATURE SENSOR ... 18
TRANSFER CONTROL UNIT .......................... ... 18
TRANSFER CONTROL DEVICE ..................... ... 18
4WD SHIFT SWITCH AND INDICATOR LAMP ... 184WD WARNING LAMP ....................................
... 19
ATP WARNING LAMP ...................................... ... 19
System Diagram ..................................................... 19 COMPONENTS FUNCTION ............................ ... 20
CAN Communication .............................................. 20 SYSTEM DESCRIPTION ................................. ... 20
TROUBLE DIAGNOSIS ......................................... ... 21
How to Perform Trouble Diagnosis ...................... ... 21
BASIC CONCEPT ............................................ ... 21
Location of Electrical Parts .................................. ... 22
Circuit Diagram ....................................................... 23
Wiring Diagram — T/F — .................................... ... 24
Inspections Before Trouble Diagnosis ................. ... 32
TRANSFER FLUID CHECK ............................. ... 32
PREPARATION FOR ROAD TEST .................. ... 32
CHECK BEFORE ENGINE IS STARTED ........ ... 32
CHECK AT IDLE ............................................... ... 32
CRUISE TEST ..................................................... 33
Trouble Diagnosis Chart for Symptoms ............... ... 34
Transfer Control Unit Input/Output Signal Refer-
ence Values ......................................................... ... 35
TRANSFER CONTROL UNIT INSPECTION
TABLE .............................................................. ... 35
CONSULT-II Function (ALL MODE AWD/4WD) .. ... 44
FUNCTION ....................................................... ... 44
CONSULT-II SETTING PROCEDURE ............. ... 44
SELF-DIAG RESULT MODE ............................ ... 45
DATA MONITOR MODE ................................... ... 47
WORK SUPPORT ............................................ ... 49
Self-diagnostic Procedure ................................... ... 50
SELF-DIAGNOSTIC PROCEDURE (WITH
CONSULT-II) .................................................... ... 50
SELF-DIAGNOSTIC PROCEDURE (WITHOUT
CONSULT-II) .................................................... ... 50
ERASE SELF-DIAGNOSIS .............................. ... 53
TROUBLE DIAGNOSIS FOR SYSTEM ................. ... 54
Power Supply Circuit For Transfer Control Unit ... ... 54
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ............................................. ... 54
TRANSFER CONTROL UNIT TERMINALS AND

TF-24
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
Wiring Diagram — T/F —EDS002HG
WDWA0016E

WT-1
ROAD WHEELS & TIRES
E SUSPENSION
CONTENTS
C
DF
G H
I
J
K L
M
SECTION
A
B
WT
Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 2
PREPARATION ...................................................... ..... 3
Special Service Tool ............................................ ..... 3
Commercial Service Tools ................................... ..... 3
NOISE, VIBRATION, AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 4
NVH Troubleshooting Chart ................................ ..... 4
WHEEL .................................................................. ..... 5
Inspection ............................................................ ..... 5
WHEEL AND TIRE ASSEMBLY ............................ ..... 6
Balancing Wheels ............................................... ..... 6
REMOVAL ........................................................ ..... 6
WHEEL BALANCE ADJUSTMENT ................. ..... 6
Rotation ............................................................... ..... 7
LOW TIRE PRESSURE WARNING SYSTEM ....... ..... 8
System Components ........................................... ..... 8
System Description ............................................. ..... 8
TRANSMITTER ................................................ ..... 8
REMOTE KEYLESS ENTRY RECEIVER ........ ..... 8
BCM (BODY CONTROL MODULE) ................. ..... 9
WARNING LAMP AND BUZZER ..................... ..... 9
COMBINATION METER .................................. ..... 9
DISPLAY UNIT ................................................. ..... 9
CAN COMMUNICATION ....................................... ... 10
System Description ............................................. ... 10
TROUBLE DIAGNOSES ....................................... ....11
Wiring Diagram – T/WARN – .............................. .... 11
Terminals and Reference Values for BCM .......... ... 13
ID Registration Procedure ................................... ... 14
ID REGISTRATION WITH TRANSMITTER
ACTIVATION TOOL ......................................... ... 14
ID REGISTRATION WITHOUT TRANSMITTER
ACTIVATION TOOL ......................................... ... 16
Transmitter Wake Up Operation .......................... ... 18
WITH TRANSMITTER ACTIVATION TOOL ..... ... 18
CONSULT-II Function (BCM) .............................. ... 19
Self-Diagnosis ..................................................... ... 20DESCRIPTION .................................................
... 20
FUNCTION ....................................................... ... 20
CONSULT-II ...................................................... ... 20
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ................................................... ... 22
INTRODUCTION .............................................. ... 22
WORK FLOW ................................................... ... 22
Preliminary Check ............................................... ... 23
Malfunction Code/Symptom Chart ....................... ... 24
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS ..................................................................... ... 26
Inspection 1: Transmitter or Control Unit (BCM) .. ... 26
MALFUNCTION CODE NO. 21, 22, 23 OR 24
(DTC C1708, C1709, C1710 OR C1711) ......... ... 26
Inspection 2: Transmitter - 1 ................................ ... 26
MALFUNCTION CODE NO. 31, 32, 33, 34, 41,
42, 43, 44, 45, 46, 47 OR 48 ............................ ... 26
Inspection 3: Transmitter - 2 ................................ ... 27
MALFUNCTION CODE NO. 35, 36, 37 OR 38 ... 27
Inspection 4: Vehicle Speed Signal ..................... ... 28
MALFUNCTION CODE NO. 52 (DTC C1729) . ... 28
TROUBLE DIAGNOSIS FOR SYMPTOMS ........... ... 29
Inspection 1: Warning Lamp Does Not Come On
When Ignition Switch Is Turned On ..................... ... 29
Inspection 2: Low Tire Pressure Warning Lamp
Stays On When Ignition Switch Is Turned On ...... ... 30
Inspection 3: Warning Lamp Flashes When Ignition
Switch Is Turned On ............................................ ... 32
Inspection 4: Hazard Warning Lamp Flashes When
Ignition Switch Is Turned On ............................... ... 33
Inspection 5: “TIRE PRESSURE” Information In
Display Unit Does Not Exist ................................. ... 34
Inspection 6: ID Registration Cannot Be Completed ... 35
REMOVAL AND INSTALLATION .......................... ... 36
Transmitter (Pressure Sensor) ............................ ... 36
REMOVAL ........................................................ ... 36
INSTALLATION ................................................ ... 36
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 38
Road Wheel ............................................................ 38
Tire ...................................................................... ... 38

TROUBLE DIAGNOSESWT-11
C
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G H
I
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K L
M A
B
WT
Revision: November 2009 2006 QX56
TROUBLE DIAGNOSESPFP:00004
Wiring Diagram – T/WARN –EES001I5
WEWA0047E