Nissan Xterra. Manual — part 725
REAR WIPER AND WASHER SYSTEM
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< SYSTEM DESCRIPTION >
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• BCM reads an auto stop signal from the rear wiper motor to detect a rear wiper motor position.
• When the rear wiper motor is at other than the stopping position, BCM continues to supply power to the rear
wiper motor until it returns to the stopping position.
NOTE:
BCM stops supplying power to the rear wiper motor when the ignition switch is turned OFF.
REAR WIPER OPERATION LINKED WITH WASHER
• BCM supplies power to the rear wiper motor according to the washer linked operating condition of rear
wiper. When the rear washer switch is turned OFF, BCM controls rear wiper to operate approximately three
times.
Washer linked operating condition of rear wiper
- Ignition switch ON
- Rear washer switch ON (0.4 second or more)
• Front and rear washer motor becomes grounded through the combination switch (wiper and washer switch)
when the rear washer switch is turned ON.
REAR WIPER DROP WIPE OPERATION
• BCM controls the rear wiper to operate once according to the rear wiper drop wipe operating condition.
Rear wiper drop wipe operating condition
- Ignition switch ON
- Rear wiper switch OFF
- Rear washer switch OFF
• BCM controls the rear wiper so that it operates once time approximately three seconds later after the washer
interlocking operation of the rear wiper.
REAR WIPER FAIL
−SAFE OPERATION
BCM performs the fail-safe function when the rear wiper auto stop circuit is malfunctioning. Refer to
JPLIA0166GB
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< SYSTEM DESCRIPTION >
REAR WIPER AND WASHER SYSTEM
Component Parts Location
INFOID:0000000009484687
Component Description
INFOID:0000000009484688
1.
BCM M18, M19, M20 (view with lower in-
strument panel LH removed)
2.
Front and rear washer motor
E105
3.
Washer fluid reservoir
4.
Combination switch (wiper and washer
switch) M28
5.
Rear washer nozzle
6.
Rear wiper motor D509
ALLIA0829ZZ
Part
Description
BCM
• Judges each switch status by the combination switch reading function.
• Supplies power to the rear wiper motor.
• Performs the auto stop control of the rear wiper.
Combination switch
(Wiper and washer switch)
Rear wiper motor
• BCM controls rear wiper operation.
• Sends wiper stop signal to BCM.
Front and rear washer mo-
tor
Pumps washer fluid to front or rear in wash mode.
DIAGNOSIS SYSTEM (BCM)
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
INFOID:0000000010247332
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
WIPER
Direct Diagnostic Mode
Description
ECU Identification
The BCM part number is displayed.
Self Diagnostic Result
The BCM self diagnostic results are displayed.
Data Monitor
The BCM input/output data is displayed in real time.
Active Test
The BCM activates outputs to test components.
Work support
The settings for BCM functions can be changed.
Configuration
• The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN Diag Support Mntr
The result of transmit/receive diagnosis of CAN communication is displayed.
System
Sub System
Direct Diagnostic Mode
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N Diag
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Door lock
DOOR LOCK
×
×
×
Rear window defogger
REAR DEFOGGER
×
×
Warning chime
BUZZER
×
×
Interior room lamp timer
INT LAMP
×
×
×
Remote keyless entry system
MULTI REMOTE ENT
×
×
×
Exterior lamp
HEAD LAMP
×
×
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps FLASHER
×
×
Air conditioner
AIR CONDITIONER
×
Combination switch
COMB SW
×
BCM
BCM
×
×
×
×
×
Immobilizer
IMMU
×
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Back door open
TRUNK
×
×
Vehicle security system
THEFT ALM
×
×
×
RAP system
RETAINED PWR
×
×
×
Signal buffer system
SIGNAL BUFFER
×
×
TPMS
AIR PRESSURE MONITOR
×
×
×
×
Panic alarm system
PANIC ALARM
×
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< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
WIPER : CONSULT Function (BCM - WIPER)
INFOID:0000000010247334
DATA MONITOR
ACTIVE TEST
WORK SUPPORT
* : Initial setting
Monitor Item [Unit]
Description
IGN ON SW [On/Off]
Indicates condition of ignition switch ON position.
IGN SW CAN [On/Off]
Indicates ignition switch ON signal received from IPDM E/R on CAN communication line.
FR WIPER HI [On/Off]
Indicates condition of front wiper operation of combination switch.
FR WIPER LOW [On/Off]
FR WIPER INT [On/Off]
FR WASHER SW [On/Off]
INT VOLUME [1 - 7]
FR WIPER STOP [On/Off]
Indicates front wiper motor auto stop signal received from IPDM E/R on CAN communica-
tion line.
VEHICLE SPEED [km/h/mph]
Indicates vehicle speed signal received from combination meter on CAN communication
line.
RR WIPER ON [On/Off]
Indicates condition of rear wiper operation of combination switch.
RR WIPER INT [On/Off]
RR WASHER SW [On/Off]
RR WIPER STOP [On/Off]
Indicates rear wiper motor auto stop input from rear wiper motor.
Test Item
Description
FR WIPER
This test is able to check front wiper operation [Off/INT/Lo/Hi].
RR WIPER
This test is able to check rear wiper operation [Off/On].
Support Item
Setting
Description
WIPER SPEED SETTING
Off*
Front wiper intermittent time linked with wiper dial position.
On
Front wiper intermittent time linked with vehicle speed and wiper dial position.
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