200 INFINITI QX56 2009 Factory Service Manual

WT-42
< ON-VEHICLE REPAIR >
WHEEL AND TIRE ASSEMBLY
3. Install balance weight in the position shown.CAUTION:
• Do not install the inner bala nce weight before installing
the outer balance weight.
• Before installing the balance weight, be sure to clean the mating surface of the road wheel.
• When installing balance weight (1) to road wheel, set it into the grooved area (A) on the inner wall of the road wheel as shown
so that the balance weight center (B) is aligned with the bal-
ancer machine indication position (angle) (C).
CAUTION:
• Always use genuine NISSAN adhesive balance weights.
• Balance weights are non-reusable; always replace withnew ones.
• Do not install more than three sheets of balance weight.
4. If calculated balance weight value exceeds 50 g (1.76 oz.), install two balance weight sheets in line with each other as
shown.
CAUTION:
Do not install one balance weight sheet on top another.
5. Start balancer machine again.
6. Install balance weight on inner side of road wheel in the bal- ancer machine indication position (angle).
CAUTION:
Do not install more than two balance weights.
7. Start balancer machine. Make sure that inner and outer residual imbalance values are 5 g (0.17 oz.) each or below.
8. If either residual imbalance value exceeds 5 g (0.17 oz.), repeat installation procedures.
TIRE ROTATION
• Follow the maintenance schedule for tire rotation service intervals.
Refer to MA-6, "
General Maintenance".
• When installing the wheel, tighten wheel nuts to the specified
torque.
CAUTION:
• Do not include the spare tire when rotating the tires.
• When installing wheels, tighten them diagonally by dividing
the work two to three times in order to prevent the wheels
from developing any distortion.
• Be careful not to tighten wheel nut at torque exceeding the criteria for preventing strain of disc rotor.
• Use NISSAN genuine wheel nuts for aluminum wheels.
JPEIC0040ZZ
Wheel balance Dynamic (At flange) Static (At flange)
Maximum allowable un-
balance Refer to
WT-45, "
Road Wheel".
PEIA0033E
Wheel nut tightening
torque : 133 N·m (14 kg-m, 98 ft-lb)
SMA829C
Revision: December 20092009 QX56

REMOVAL AND INSTALLATIONWT-43
< REMOVAL AND INSTALLATION >
C
DF
G H
I
J
K L
M A
B
WT
N
O P
REMOVAL AND INSTALLATION
REMOVAL AND INSTALLATION
Transmitter (Pressure Sensor)INFOID:0000000003772405
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 : 7.7 N·m (0.79 kg-m, 68 in-lb)
WEIA0137E
Revision: December 20092009 QX56

WT-44
< REMOVAL AND INSTALLATION >
REMOVAL AND INSTALLATION
3. Place wheel on turntable of tire machine. Ensure that transmitteris 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-41, "
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-5, "
Transmitter Wake Up Operation" .
7. Adjust neutral position of steering angle sensor. Refer to BRC-8, "
ADJUSTMENT OF STEERING ANGLE
SENSOR NEUTRAL POSITION : Special Repair Requirement" .
WEIA0046E
Revision: December 20092009 QX56

SERVICE DATA AND SPECIFICATIONS (SDS)WT-45
< SERVICE DATA AND SPECIFICATIONS (SDS)
C
DF
G H
I
J
K L
M A
B
WT
N
O P
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Road WheelINFOID:0000000004201424
TireINFOID:0000000003772407
Unit: kPa (kg/cm2, psi)
Wheel type AluminumSte el
Inside Outside
Maximum radial
runout limit Lateral mm (in)
0.3 (0.012) or less 1.0 (0.039) or less 0.9 (0.035) or less
Radial mm (in) 0.3 (0.012) or less 0.8 (0.031) or less 0.4 (0.016) or less
Maximum residual im-
balance 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)
P275/60R20 240 (2.4, 35)—
Revision: December 20092009 QX56

WW-1
DRIVER CONTROLS
C
DE
F
G H
I
J
K
M
SECTION WW
A
B
WW
N
O P
CONTENTS
WIPER & WASHER
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Work Flow ........................................................... ......3
FUNCTION DIAGNOSIS ...............................4
FRONT WIPER AND WASHER SYSTEM ..... .....4
System Diagram .................................................. ......4
System Description ...................................................4
Component Parts Location ........................................7
Component Description ............................................7
REAR WIPER AND WASHER SYSTEM ............8
System Diagram .................................................. ......8
System Description ...................................................8
Component Parts Location ......................................10
Component Description ..........................................10
DIAGNOSIS SYSTEM (BCM) ............................11
COMMON ITEM ..................................................... ....11
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) .....................................................
11
WIPER ................................................................... ....11
WIPER : CONSULT-III Function (BCM - WIPER) ....11
DIAGNOSIS SYSTEM (IPDM E/R) .....................13
Diagnosis Description ......................................... ....13
CONSULT - III Function (IPDM E/R) .......................15
COMPONENT DIAGNOSIS .........................18
WIPER AND WASHER FUSE ........................ ....18
Description .......................................................... ....18
Diagnosis Procedure ...............................................18
FRONT WIPER MOTOR LO CIRCUIT ...............19
Component Function Check ................................ ....19
Diagnosis Procedure ...............................................19
FRONT WIPER MOTOR HI CIRCUIT ................21
Component Function Check ................................ ....21
Diagnosis Procedure ...............................................21
FRONT WIPER AUTO STOP SIGNAL CIR-
CUIT ..................................................................
23
Component Function Check ....................................23
Diagnosis Procedure ...............................................23
FRONT WIPER MOTOR GROUND CIRCUIT ...25
Diagnosis Procedure ...............................................25
WASHER SWITCH ............................................26
Description ...............................................................26
Component Inspection .............................................26
REAR WIPER MOTOR CIRCUIT ......................28
Component Function Check ....................................28
Diagnosis Procedure ...............................................28
REAR WIPER AUTO STOP SIGNAL CIRCUIT
...
30
Component Function Check ................................ ....30
Diagnosis Procedure ...............................................30
FRONT WIPER AND WASHER SYSTEM ........31
Wiring Diagram ........................................................31
REAR WIPER AND WASHER SYSTEM ..........35
Wiring Diagram ........................................................35
ECU DIAGNOSIS .........................................41
BCM (BODY CONTROL MODULE) .................41
Reference Value .................................................. ....41
Terminal Layout .......................................................43
Physical Values ................................................... ....43
Wiring Diagram ........................................................49
IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) ................
54
Reference Value ......................................................54
Terminal Layout .......................................................56
Physical Values ................................................... ....56
Revision: December 20092009 QX56

WW-2
Wiring Diagram .......................................................61
Fail Safe .................................................................64
SYMPTOM DIAGNOSIS .............................66
WIPER AND WASHER SYSTEM SYMPTOMS
...
66
Symptom Table ................................................... ...66
NORMAL OPERATING CONDITION ................69
Description ........................................................... ...69
FRONT WIPER DOES NOT OPERATE ............70
Description ........................................................... ...70
Diagnosis Procedure ..............................................70
PRECAUTION .............................................72
PRECAUTION ... .............................................. ...72
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
72
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ..................................
72
ON-VEHICLE REPAIR ................................74
FRONT WIPER ARM ...................................... ...74
Front Wiper Arms ................................................ ...74
FRONT WIPER DRIVE ASSEMBLY .................75
Wiper Motor and Linkage ..................................... ...75
FRONT WASHER TUBE ...................................76
Washer Tube Layout ............................................ ...76
FRONT WASHER NOZZLE ..............................77
Washer Nozzle Adjustment .................................. ...77
WASHER TANK ................................................78
Washer Fluid Reservoir ..........................................78
FRONT WASHER PUMP ..................................79
Washer Motor ...................................................... ...79
FRONT WIPER AND WASHER SWITCH .........80
Wiper and Washer Switch .................................... ...80
REAR WIPER AND WASHER SYSTEM ...........81
Rear Wiper Arm ................................................... ...81
Rear Wiper Motor ....................................................81
Rear Washer Nozzle Adjustment ............................82
Rear Washer Tube Layout ......................................83
Rear Washer Nozzle ...............................................83
Rear Wiper and Washer Switch ..............................83
Washer Fluid Reservoir ....................................... ...84
Washer Motor .........................................................84
Revision: December 20092009 QX56

DIAGNOSIS AND REPAIR WORKFLOWWW-3
< BASIC INSPECTION >
C
DE
F
G H
I
J
K
M A
B
WW
N
O P
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000003776275
DETAILED FLOW
1. LISTEN TO CUSTOMER COMPLAINT
Listen to customer complaint. Get detailed information about the conditions and environment when the symp-
tom occurs.
>> GO TO 2
2. VERIFY THE SYMPTOM WITH OPERATIONAL CHECK
Verify the symptom with operational check. Refer to WW-69, "
Description".
>> GO TO 3
3. GO TO APPROPRIATE TROUBLE DIAGNOSIS
Go to appropriate trouble diagnosis. Refer to WW-66, "
Symptom Table".
>> GO TO 4
4. REPAIR OR REPLACE
Repair or replace the specific parts.
>> GO TO 5
5. FINAL CHECK
Final check.
Is inspection result normal?
YES >> Inspection End
NO >> Refer to GI-38, "
Intermittent Incident".
Revision: December 20092009 QX56

WW-4
< FUNCTION DIAGNOSIS >
FRONT WIPER AND WASHER SYSTEM
FUNCTION DIAGNOSIS
FRONT WIPER AND WASHER SYSTEM
System DiagramINFOID:0000000003776276
System DescriptionINFOID:0000000003776277
OUTLINE
The front wiper is controlled by each function of BCM and IPDM E/R.
Control by BCM
• Combination switch reading function
• Front wiper control function
Control by IPDM E/R
• Front wiper control function
• Relay control function
FRONT WIPER BASIC OPERATION
• BCM detects the combination switch conditi on by the combination switch reading function.
• BCM transmits the front wiper request signal to IPDM E/R with CAN communication depending on each
operating condition of the front wiper.
• IPDM E/R turns ON/OFF the integrated front wiper rela y and the front wiper high relay according to the front
wiper request signal. IPDM E/R provides the power supply to operate the front wiper HI/LO operation.
FRONT WIPER LO OPERATION
• BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the
front wiper LO operating condition.
Front wiper LO operating condition
- Ignition switch ON
- Front wiper switch LO or front wiper switch MIST (while pressing)
• IPDM E/R turns ON the integrated front wiper rela y according to the front wiper request signal (LO).
FRONT WIPER HI OPERATION
• BCM transmits the front wiper request signal (HI) to IPDM E/R with CAN communication according to the
front wiper HI operating condition.
Front wiper HI operating condition
- Ignition switch ON
- Front wiper switch HI
• IPDM E/R turns ON the integrated front wiper relay and the front wiper high relay according to the front wiper request signal (HI).
FRONT WIPER INT OPERATION (L INKED WITH VEHICLE SPEED)
ALLIA0427GB
Revision: December 20092009 QX56

FRONT WIPER AND WASHER SYSTEMWW-5
< FUNCTION DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
WW
N
O P
• BCM transmits the front wiper request signal (INT) to IPDM E/R with CAN communication according to the
front wiper INT operation condition and the intermittent operation delay interval judged value.
Front wiper INT operating condition- Ignition switch ON
- Front wiper switch INT
Intermittent operation delay interval judgment- BCM calculates the intermittent operation delay inte rval from the vehicle speed signal received from the
wiper dial position and the combination meter with CAN communication.
• IPDM E/R turns the integrated front wiper relay ON so that the front wiper is operated only once according to the front wiper request signal (INT).
• BCM detects stop position/except st op position of the front wiper motor according to the front wiper stop
position signal received from IP DM E/R with CAN communication.
• BCM transmits the front wiper request signal (INT) again after the intermittent operation delay interval after the front wiper motor is stopped.
FRONT WIPER AUTO STOP OPERATION
• BCM stops transmitting the front wiper request si gnal when the front wiper switch is turned OFF.
• IPDM E/R detects the front wiper auto stop signal fr om the front wiper motor and detects the front wiper
motor position (stop positi on/except stop position).
Wiper intermittent dial posi-
tion Intermittent
operation interval Intermittent operation delay Interval (s)
Vehicle speed
Vehicle stopped or less than 5 km/h (3.1 MPH) 5 km/h (3.1 MPH)
or more or less
than 35 km/h (21.7 MPH) 35 km/h (21.7
MPH) or more or
less than 65 km/h (40.4 MPH) 65 km/h (40.4
MPH) or more
1S hort
↑
↓
Long 0.8
0.60.40.24
2 4321 .2
31 07.5 5 3
41 612 84.8
5 241 8127.2
6 322 4169.6
7 423 1.52 11 2.6
JPLIA0094GB
Revision: December 20092009 QX56

WW-6
< FUNCTION DIAGNOSIS >
FRONT WIPER AND WASHER SYSTEM
• When the front wiper request signal is stopped, IPDM E/R turns ON the front wiper relay until the front wiper
motor returns to the stop position.
NOTE:
• BCM stops the transmitting of the front wiper request signal when the ignition switch is OFF.
• IPDM E/R turns the front wiper relay OFF when the ignition switch is OFF.
FRONT WIPER OPERATION LINKED WITH WASHER
• BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the
washer linked operating condition of the front wiper.
• BCM transmits the front wiper request signal (LO) so that the front wiper operates approximately 3 times when the front washer s witch OFF is detected.
Washer linked operating condition of front wiper
- Ignition switch ON
- Front washer switch ON (0.4 second or more)
• IPDM E/R turns ON the integrated front wiper rela y according to the front wiper request signal (LO).
• The front and rear washer motor is grounded through the combination switch with the front washer switch
ON.
FRONT WIPER DROP WIPE OPERATION
• BCM controls the front wiper to operate once accordi ng to the conditions of front wiper drop wipe operation.
Front wiper drop wipe operating condition- Ignition switch ON
- Front wiper switch OFF
- Front washer switch OFF
• BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication so that the front
wiper operate once three seconds after front wiper operation linked with washer.
• IPDM E/R turns ON the integrated front wiper rela y according to the front wiper request signal (LO).
FRONT WIPER FAIL−SAFE OPERATION
• IPDM E/R performs the fail-safe function when the front wiper auto stop circuit is malfunctioning. Refer to
WW-64, "
FailSafe".
JPLIA0095GB
Revision: December 20092009 QX56