INFINITI QX56 2006 Factory Service Manual

WT-32
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: November 20092006 QX56
Inspection 3: Warning Lamp Flashes When Ignition Switch Is Turned OnEES001IJ
NOTE:
If warning lamp flashes as shown, the system is normal.
Flash Mode A

This mode shows transmitter status is OFF-mode.
Carry out transmitter wake up operation. Refer to WT-18,
"Transmitter Wake Up Operation" .
DIAGNOSTIC PROCEDURE
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect BCM harness connectors M18 and M20.
3. Check terminals for damage or loose connections.
Inspection results OK?
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
2. CHECK TIRE PRESSURE WARNING CHECK CONNECTOR CIRCUIT
Check continuity between BCM connector M18 terminal 15 and tire pressure warning check connector M123
terminal 1.
OK or NG
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> Repair or replace harness connector.
SEIA0347E
1 - 15 Continuity should exist
WEIA0097E

TROUBLE DIAGNOSIS FOR SYMPTOMSWT-33
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Inspection 4: Hazard Warning Lamp Flashes When Ignition Switch Is Turned OnEES001IK
DIAGNOSTIC PROCEDURE
1. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM harness connector M20.
3. Check continuity between BCM connector M20 terminal 67 and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> Repair BCM ground circuit. Te r m i n a l s
Continuity
(+) (–)
Connector Terminal Ground Yes
M20 67
LIIA1040E

WT-34
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: November 20092006 QX56
Inspection 5: “TIRE PRESSURE” Information In Display Unit Does Not ExistEES001Q5
DIAGNOSTIC PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK
1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link con- nector, then turn the ignition switch ON.
2. Select “START (NISSAN BASED VHCL) ”.
3. Select "BCM" on “SELECT SYSTEM” screen.
NOTE:
If the BCM is not indicated, refer to GI-40, "
CONSULT-II Data
Link Connector (DLC) Circuit" .
4. Select "BCM" on "SELECT TEST ITEM" screen, and select "SELF-DIAG RESULTS".
5. Check display contents in self-diagnostic results.
Is "CAN COMM CIRCUIT" displayed in the self-diagnosis display items?
YES >> Malfunction in CAN communication system. Go To LAN-26, "CAN COMMUNICATION" .
NO >> GO TO 2.
2. CHECK DISPLAY UNIT
Perform display unit self-diagnosis. Refer to AV- 11 4 , "
Self-Diagnosis Mode (NAVI)" .
Inspection results OK?
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> Repair or replace malfunctioning parts.
BCIA0029E
BCIA0030E
BCIA0031E

TROUBLE DIAGNOSIS FOR SYMPTOMSWT-35
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Revision: November 2009 2006 QX56
Inspection 6: ID Registration Cannot Be CompletedEES001IM
DIAGNOSTIC PROCEDURE
1. ID REGISTRATION (ALL)
Carry out ID registration of all transmitters.
Can ID registration of all transmitters be completed?
YES >> Inspection End.
NO >> Go To WT-26, "
Inspection 1: Transmitter or Control Unit (BCM)" .

WT-36
REMOVAL AND INSTALLATION
Revision: November 20092006 QX56
REMOVAL AND INSTALLATIONPFP:00000
Transmitter (Pressure Sensor)EES001IN
REMOVAL
1. Deflate tire. Unscrew transmitter retaining nut and allow transmitter to fall into tire.
2. Gently bounce tire so that transmitter falls to bottom of tire.
Place wheel and tire assembly on tire changing machine and
break both tire beads. Ensure that the transmitter remains at the
bottom of the tire while breaking the bead.
3. Turn tire so that valve hole is at bottom, and gently bounce the tire to ensure transmitter is near valve hole. Carefully lift tire onto
turntable and position valve hole (and transmitter) 270 degrees
from mounting/dismounting head.
4. Lubricate tire well, and remove top side of tire. Reach inside the tire and remove the transmitter.
5. Remove the second side of the tire as normal.
INSTALLATION
1. Place first side of tire onto rim.
2. Mount transmitter on rim and tighten nut to specification.
SEIA0047E
WEIA0046E
SEIA0049E
Transmitter nut : 5.5 N·m (0.56 kg-m, 49 in-lb)
WEIA0137E

REMOVAL AND INSTALLATIONWT-37
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Revision: November 2009 2006 QX56
3. Place wheel on turntable of tire machine. Ensure that transmitter
is 270 degrees from mounting/dismounting head.
NOTE:
Do not touch transmitter with mounting head.
4. Lubricate tire well, and install second side of tire as normal. Ensure that tire does not rotate relative to rim.
5. Inflate tire and balance the wheel and tire assembly. Refer to WT-6, "
Wheel Balance Adjustment" .
6. Install Wheel and tire assembly in appropriate wheel position on vehicle.
NOTE:
If replacing the transmitter, then transmitter wake up operation must be performed. Refer to WT-18,
"Transmitter Wake Up Operation" .
7. Adjust neutral position of steering angle sensor. Refer to BRC-62, "
Adjustment of Steering Angle Sensor
Neutral Position" .
WEIA0046E

WT-38
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: November 20092006 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Road WheelEES001IO
TireEES001IP
Unit: kPa (kg/cm2 , psi)
Wheel type
Aluminum
Maximum radial runout limit Lateral mm (in)
0.3 (0.012) or less
Radial mm (in) 0.3 (0.012) or less
Maximum residual imbalance Dynamic (at rim flange)
Less than 5 g (0.18 oz) (per side)
Static (at rim flange) Less than 10 g (0.35 oz)
Tire size Air pressure
Conventional tire Spare tire
Full size spare tire —240 (2.4, 35)
P265/70R18 240 (2.4, 35)—

WW-1
WIPER, WASHER & HORN
K ELECTRICAL
CONTENTS
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SECTION
A
B
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Revision: November 2009 2006 QX56
PRECAUTION .......................................................
..... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
FRONT WIPER AND WASHER SYSTEM ............. ..... 4
Components Parts and Harness Connector Loca-
tion ...................................................................... ..... 4
System Description ............................................. ..... 4
LOW SPEED WIPER OPERATION ................. ..... 5
HI SPEED WIPER OPERATION ...................... ..... 5
INTERMITTENT OPERATION ......................... ..... 5
AUTO STOP OPERATION ............................... ..... 6
FRONT WASHER OPERATION ...................... ..... 6
MIST OPERATION ................................................ 6
FAIL-SAFE FUNCTION .................................... ..... 6
COMBINATION SWITCH READING FUNCTION ..... 6
CAN Communication System Description ........... ..... 6
Schematic ........................................................... ..... 7
Wiring Diagram — WIPER — ............................. ..... 8
Terminals and Reference Values for BCM .......... .... 11
Terminals and Reference Values for IPDM E/R .. ... 12
Work Flow ........................................................... ... 12
Preliminary Inspection ......................................... ... 12
INSPECTION FOR POWER SUPPLY AND
GROUND CIRCUIT .......................................... ... 12
CONSULT-II Function (BCM) .............................. ... 14
CONSULT-II OPERATION ............................... ... 14
WORK SUPPORT ............................................ ... 15
DATA MONITOR .............................................. ... 15
ACTIVE TEST .................................................. ... 16
CONSULT-II Function (IPDM E/R) ...................... ... 16
CONSULT-II OPERATION ............................... ... 16
DATA MONITOR .............................................. ... 17
ACTIVE TEST .................................................. ... 18
Front Wiper Does Not Operate ........................... ... 18
FRONT WIPER STOP POSITION IS INCOR-
RECT ............................................................... ... 21
ONLY FRONT WIPER LOW DOES NOT OPER-
ATE .................................................................. ... 22
ONLY FRONT WIPER HIGH DOES NOT OPER- ATE ..................................................................
... 24
ONLY FRONT WIPER INTERMITTENT DOES
NOT OPERATE ................................................ ... 25
FRONT WIPER INTERMITTENT OPERATION
SWITCH POSITION CANNOT BE ADJUSTED ... 26
WIPERS DO NOT WIPE WHEN FRONT
WASHER OPERATES ..................................... ... 26
FRONT WIPERS OPERATE FOR 10 SEC-
ONDS, STOP FOR 20 SECONDS, AND AFTER
REPEATING THIS OPERATION FIVE TIMES,
THEY BECOME INOPERATIVE ...................... ... 26
Front Wiper Arms ................................................ ... 28
REMOVAL AND INSTALLATION ..................... ... 28
FRONT WIPER ARM ADJUSTMENT .............. ... 28
Wiper Motor and Linkage .................................... ... 29
REMOVAL AND INSTALLATION ..................... ... 29
REMOVAL ........................................................ ... 29
INSTALLATION ................................................ ... 29
Washer Nozzle Adjustment ................................. ... 29
Washer Tube Layout ........................................... ... 30
Wiper and Washer Switch ................................... ... 30
REMOVAL AND INSTALLATION ..................... ... 30
INSTALLATION ................................................ ... 30
Washer Fluid Reservoir ....................................... ... 30
REMOVAL AND INSTALLATION ..................... ... 30
Washer Motor ...................................................... ... 31
REMOVAL AND INSTALLATION ..................... ... 31
INSTALLATION ................................................ ... 31
REAR WIPER AND WASHER SYSTEM ............... ... 32
Components Parts and Harness Connector Loca-
tion ....................................................................... ... 32
System Description .............................................. ... 32
REAR WIPER OPERATION ............................. ... 33
INTERMITTENT OPERATION ......................... ... 33
AUTO STOP OPERATION ............................... ... 34
REAR WASHER OPERATION ......................... ... 34
BCM WIPER SWITCH READING FUNCTION . ... 35
Wiring Diagram — WIP/R — .................................. 36
Terminals and Reference Values for BCM ........... ... 38
How to Proceed With Trouble Diagnosis ............. ... 40

WW-2Revision: November 20092006 QX56
Preliminary Inspection .........................................
... 40
INSPECTION FOR POWER SUPPLY AND
GROUND CIRCUIT .......................................... ... 40
CONSULT-II Function (BCM) ............................... ... 42
CONSULT-II OPERATION ................................ ... 42
DATA MONITOR ............................................... ... 43
ACTIVE TEST .................................................. ... 43
Rear Wiper Does Not Operate ............................... 44
Rear Wiper Stop Position Is Incorrect .................. ... 46
Only Rear Wiper Does Not Operate ....................... 47
Only Rear Wiper Intermittent Does Not Operate . ... 48
Wiper Does Not Wipe When Rear Washer Operates ... 48
Rear Wiper Arm ................................................... ... 49
REMOVAL AND INSTALLATION ...................... ... 49
INSTALLATION ................................................. ... 49
Rear Wiper Motor ................................................... 50 REMOVAL AND INSTALLATION ...................... ... 50
REMOVAL ........................................................ ... 50
INSTALLATION ................................................ ... 50
Rear Washer Nozzle Adjustment ......................... ... 50
Rear Washer Tube Layout ................................... ... 51Rear Washer Nozzle ............................................
... 51
REMOVAL AND INSTALLATION ...................... ... 51
INSTALLATION ................................................ ... 51
Removal and Installation ...................................... ... 51
REAR WIPER AND WASHER SWITCH ........... ... 51
WASHER FLUID RESERVOIR ......................... ... 52
WASHER MOTOR ............................................ ... 52
POWER SOCKET .................................................. ... 53
Wiring Diagram — P/SCKT — ............................. ... 53
Front Power Socket LH, Rear Cargo Power Socket ... 54
REMOVAL AND INSTALLATION ...................... ... 54
INSTALLATION ................................................ ... 54
Front Power Socket RH (For Cigarette Lighter),
Console Power Socket ......................................... ... 54
REMOVAL ........................................................ ... 54
INSTALLATION ................................................ ... 54
HORN ..................................................................... ... 55
Wiring Diagram — HORN — ............................... ... 55
Removal and Installation ...................................... ... 56
REMOVAL ......................................................... ... 56
INSTALLATION ................................................. ... 56

PRECAUTIONWW-3
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Revision: November 2009 2006 QX56
PRECAUTION PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EKS00BDQ
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER ”, used along
with a front seat belt, helps to reduce the risk or severity 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 whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

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