washer fluid INFINITI QX56 2011 Factory Owner's Guide

WW-6
< SYSTEM DESCRIPTION >
COMPONENT PARTS
Component Description
INFOID:0000000006300449
Washer SwitchINFOID:0000000006300450
 Washer switch is integrated combination switch.
 Combination switch switches polarity between front washer operating and rear washer operating to supply
power to the washer pump on ground.
Part Description
IPDM E/R  Controls the integrated relay according to the request (via CAN communication) from BCM.
 Performs the auto stop control of the front wiper.
BCM  Judges the each switch status by the combination switch reading function.
 Requests (via CAN communication) the front wiper relay and the front wiper high relay ON to
IPDM E/R.
 Supplies power to the rear wiper motor.
 Performs the auto stop control of the rear wiper.
 Requests (via CAN communication) the headlamp washer relay ON to IPDM I/R.
TCM Transmits the shift position signal to BCM via CAN communication.
Light & rain sensor Detects water droplets on the windshield with infrared rays, and transmits the rain sensor signal
to BCM via the rain sensor serial link.
Combination switch
(Wiper & washer switch) Refer to
BCS-7, "
COMBINATION SWITCH READING S YSTEM : System Description".
Washer switch Refer to WW-6, "
Washer Switch".
Washer pump  Washer fluid is sprayed according to washer switch states.
 Switching between front washer and rear washer is performed according to the voltage polarity
change to washer pomp.
Headlamp washer pump Washer fluid is sprayed according to washer switch states and headlamp switch status.
Front wiper motor  IPDM E/R controls front wiper operation.
 Front wiper auto stop signal is transmitted to IPDM E/R.
Rear wiper motor  BCM controls rear wiper operation.
 Rear wiper auto stop signal is transmitted to BCM.
Combination meter Transmits the vehicle speed signal to BCM via CAN communication.
JPLIA0163GB
Revision: 2010 May2011 QX56

SYSTEMWW-7
< SYSTEM DESCRIPTION >
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SYSTEM
FRONT WIPER AND WASHER SYSTEM
FRONT WIPER AND WASHER SYSTEM : System DiagramINFOID:0000000006300451
FRONT WIPER AND WASHER S YSTEM : System DescriptionINFOID:0000000006300452
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
Combination meter indicates low washer fluid level warning judged by the signal from the washer level switch.
For details of low washer fluid level warning, refer to MWI-16, "
MASTER WARNING LAMP : System Descrip-
tion".
FRONT WIPER BASIC OPERATION
 BCM detects the combination switch condition by the combination switch reading function.
 BCM transmits the front wiper request signal to IPDM E/R via CAN communication depending on each oper-
ating 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 via 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 via 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).
JPLIA1630GB
Revision: 2010 May2011 QX56

WW-66
< REMOVAL AND INSTALLATION >
FRONT WIPER ARM
FRONT WIPER ARM
Exploded ViewINFOID:0000000006220408
Removal and InstallationINFOID:0000000006220409
REMOVAL
1. Operate front wiper to move it to the auto stop position.
2. Open the hood.
3. Remove front wiper arm caps.
4. Remove front wiper arm mounting nuts.
5. Raise front wiper arm, and then remove front wiper arm from the vehicle.
INSTALLATION
1. Clean wiper arm mount as shown in the figure to prevent nuts
from being loosened.
2. Operate front wiper motor to move the front wiper to the auto stop position.
3. Adjust front wiper blade position. Refer to WW-66, "
Adjustment".
4. Install front wiper arm by tightening the mounting nuts.
5. Inject the washer fluid.
6. Operate front wiper to move it to the auto stop position.
7. Check that the front wiper blades stop at the specified position.
8. Install front wiper arm caps.
AdjustmentINFOID:0000000006220410
WIPER BLADE POSITION ADJUSTMENT
1. Front wiper blade RH 2. Front wiper arm RH 3. Front wiper arm cap
4. Front wiper drive assembly 5. Front wiper motor 6. Front wiper arm LH
7. Front wiper blade LH
Refer to GI-4, "
Components" for symbols in the figure.
JMLIA0940GB
ELH0717D
Revision: 2010 May2011 QX56

WW-74
< REMOVAL AND INSTALLATION >
REAR WIPER ARM
REAR WIPER ARM
Exploded ViewINFOID:0000000006220420
Removal and InstallationINFOID:0000000006220421
REMOVAL
1. Operate rear wiper to the auto stop position.
2. Remove rear wiper arm cover.
3. Remove rear wiper arm mounting nut.
4. Remove wiper arm from the vehicle.
INSTALLATION
1. Clean wiper arm mount as shown in the figure to prevent nutfrom being loosened.
2. Operate the rear wiper motor to the auto stop position.
3. Adjust the rear wiper blade position. Refer to WW-74, "
Adjust-
ment".
4. Install the rear wiper arm by tightening the mounting nut.
5. Inject the washer fluid.
6. Operate the rear wiper to the auto stop position.
7. Check that the rear wiper blades stop at the specified position.
8. Install the rear wiper arm cover.
AdjustmentINFOID:0000000006220422
REAR WIPER BLADE POSITION ADJUSTMENT
Set the wiper blade top on the defrosting wire (A) (c learance between the end of back door glass and the top
of wiper blade center).
1. Rear wiper motor 2. Pivot seal 3. Rear wiper arm
4. Rear wiper arm cover 5. Rear wiper blade
Refer to GI-4, "
Components" for symbols in the figure.
JMLIA0942GB
SKIA0082J
Revision: 2010 May2011 QX56