Nissan Murano Z51. Manual — part 1533
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< SYSTEM DESCRIPTION >
FRONT WIPER AND WASHER SYSTEM
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
• BCM transmits the front wiper request signal (INT) to IPDM E/R with CAN communication depending on the
front wiper INT operating condition and intermittent operation delay interval according to the wiper intermit-
tent dial position.
Front wiper INT operating condition
- Ignition switch ON
- Front wiper switch INT
• IPDM E/R turns ON the integrated front wiper relay so that the front wiper is operated only once according to
the front wiper request signal (INT).
• BCM detects stop position/except stop position of the front wiper motor according to the front wiper stop
position signal received from IPDM E/R with CAN communication.
• BCM transmits the front wiper request signal (INT) again after the intermittent operation delay interval.
NOTE:
Factory setting of the front wiper intermittent operation is the operation without vehicle speed. Front wiper
intermittent operation can be set to the operation with vehicle speed by CONSULT-III. Refer to
"WIPER : CONSULT-III Function (BCM - WIPER)"
Front wiper intermittent operation with vehicle speed
• BCM calculates the intermittent operation delay interval from the following
- Vehicle speed signal (received from the combination meter with CAN communication)
- Wiper intermittent dial position
*: When without vehicle speed setting
FRONT WIPER AUTO STOP OPERATION
• BCM stops transmitting the front wiper request signal when the front wiper switch is turned OFF.
• IPDM E/R detects the front wiper stop position signal from the front wiper motor and detects the front wiper
motor position (stop position/except stop position).
Wiper intermittent
dial position
Intermittent
operation
interval
Intermittent operation delay Interval (s)
Vehicle speed
0 – 5 km/h
(0 – 3.1 MPH)
5 – 35 km/h
(3.1 – 21.7 MPH)
35 – 65 km/h*
(21.7 – 40.4 MPH)
65 km/h (40.4 MPH)
or more
1
Short
↑
↓
Long
0.8
0.6
0.4
0.24
2
4
3
2
1.2
3
10
7.5
5
3
4
16
12
8
4.8
5
24
18
12
7.2
6
32
24
16
9.6
7
42
31.5
21
12.6
JPLIA1256GB
FRONT WIPER AND WASHER SYSTEM
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< SYSTEM DESCRIPTION >
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• 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 2 times
when the front washer switch 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 relay according to the front wiper request signal (LO).
• The washer pump is grounded through the combination switch with the front washer switch ON.
FRONT WIPER FAIL-SAFE OPERATION
IPDM E/R performs the fail-safe function when the front wiper auto stop circuit is malfunctioning. Refer to
.
JPLIA0410GB
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< SYSTEM DESCRIPTION >
FRONT WIPER AND WASHER SYSTEM
WITHOUT RAIN SENSOR : Component Parts Location
INFOID:0000000005515999
WITHOUT RAIN SENSOR : Component Description
INFOID:0000000005516000
1.
Combination switch
2.
Combination meter
3.
Washer pump
4.
Front wiper motor
5.
IPDM E/R
6.
BCM
A.
Radiator core support (RH)
B.
Cowl top, left side of engine room
C.
Engine room (left side)
D.
Behind combination meter
JPLIA0908ZZ
Part
Description
BCM
• Judges 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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< SYSTEM DESCRIPTION >
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Combination switch
(Wiper & washer switch)
Refer to
Combination meter
Transmits the vehicle speed signal to BCM with CAN communication.
Part
Description
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