Infiniti EX35. Manual — part 1539
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< FUNCTION DIAGNOSIS >
FRONT WIPER AND WASHER SYSTEM
Component Parts Location
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Component Description
INFOID:0000000003591519
1.
Combination switch
2.
BCM
3.
IPDM E/R
4.
Washer pump
5.
Front wiper motor
6.
Unified meter and A/C amp.
A.
Dash side lower (Passenger side)
B.
Engine room dash panel (RH)
C.
Radiator core support (RH)
D.
Cowl top, left side of engine room
E.
Behind cluster lid C
JPLIA0983ZZ
Part
Description
BCM
• Judges the each switch status by the combination switch reading function.
• Requests (with CAN communication) the front wiper relay and the front wiper high relay ON to
IPDM E/R.
IPDM E/R
• Controls the integrated relay according to the request (with CAN communication) from BCM.
• Performs the auto stop control of the front wiper.
FRONT WIPER AND WASHER SYSTEM
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< FUNCTION DIAGNOSIS >
C
D
E
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A
B
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Combination switch
(Wiper & washer switch)
Refer to
Unified meter and A/C amp.
Transmits the vehicle speed signal to BCM with CAN communication.
Part
Description
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< FUNCTION DIAGNOSIS >
REAR WIPER AND WASHER SYSTEM
REAR WIPER AND WASHER SYSTEM
System Diagram
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System Description
INFOID:0000000003591486
OUTLINE
The rear wiper is controlled by each function of BCM.
Control by BCM
• Combination switch reading function
• Rear wiper control function
REAR WIPER BASIC OPERATION
• BCM detects the combination switch condition by the combination switch reading function.
• BCM controls the rear wiper to start or stop.
REAR WIPER ON OPERATION
• BCM supplies power to the rear wiper motor according to the rear wiper ON operating condition.
Rear wiper ON operating condition
- Ignition switch ON
- Rear wiper switch ON
REAR WIPER INT OPERATION
• BCM supplies power to the rear wiper motor according to the INT operating condition.
Rear wiper INT operating condition
- Ignition switch ON
- Rear wiper switch INT
• BCM controls the rear wiper to operate once.
• BCM detects the rear wiper motor stopping position.
• BCM supplies power to the rear wiper motor after an intermittent from the stop of the rear wiper motor.
REAR WIPER AUTO STOP OPERATION
• BCM stops supplying power to the rear wiper motor when the rear wiper switch is turned OFF.
JPLIA0334GB
JPLIA0165GB
REAR WIPER AND WASHER SYSTEM
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< FUNCTION DIAGNOSIS >
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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 3
times.
Washer linked operating condition of rear wiper
- Ignition switch ON
- Rear washer switch ON (0.4 second or more)
• The washer pump is grounded through the combination switch with the rear washer switch ON.
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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