Nissan Quest E52. Instruction — part 1269
SYSTEM
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< SYSTEM DESCRIPTION >
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FRONT WIPER INT OPERATION
• BCM transmits the front wiper request signal (INT) to IPDM E/R via 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 via 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 operation linked without vehicle speed. Front wiper
intermittent operation can be set to operation linked or not linked with vehicle speed using CONSULT. Refer to
WW-18, "WIPER : CONSULT Function (BCM - WIPER)"
.
Front wiper intermittent operation with vehicle speed
• BCM calculates the intermittent operation delay interval from the following
- Vehicle speed signal
- Wiper intermittent dial position
Unit: Second
*: When operation setting is not linked with vehicle speed.
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
Vehicle speed
0 – 5 km/h
(0 – 3.1 MPH)
5 – 65 km/h
(3.1 – 40.4 MPH)*
65 km/h (40.4 MPH) or more
1
Short
↑
↓
Long
1
0.4
0.24
2
2.5
1
0.6
3
5
2
1.2
4
7.5
3
1.8
5
12.5
5
3
6
25
10
6
7
40
16
9.6
JPLIA1256GB
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< SYSTEM DESCRIPTION >
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 via 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.
WIPER LINKED AUTO LIGHTING FUNCTION
When light switch is in the AUTO position, front wiper operates, and then headlamp illuminates. Refer to
14, "AUTO LIGHT SYSTEM (EXCEPT FOR CANADA) : System Description"
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JPLIA0410GB
SYSTEM
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< SYSTEM DESCRIPTION >
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FRONT WIPER AND WASHER SYSTEM : Circuit Diagram
INFOID:0000000009649541
FRONT WIPER AND WASHER SYSTEM : Fail-Safe
INFOID:0000000009649542
CAN COMMUNICATION CONTROL
When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN
communication recovers normally, it also returns to normal control.
If No CAN Communication Is Available With BCM
JMLIA4631GB
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< SYSTEM DESCRIPTION >
SYSTEM
FRONT WIPER PROTECTION FUNCTION
IPDM E/R detects front wiper stop position by a front wiper stop position signal.
When a front wiper stop position signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 seconds activation and 20 seconds stop five times.
NOTE:
This operation status can be confirmed on the IPDM E/R “Data Monitor” that displays “BLOCK” for the item
“WIP PROT” while the wiper is stopped.
REAR WIPER AND WASHER SYSTEM
REAR WIPER AND WASHER SYSTEM : System Description
INFOID:0000000009649543
SYSTEM DIAGRAM
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
Control part
Fail-safe operation
Front wiper motor
• The status just before activation of fail-safe control is maintained until the ignition switch is
turned OFF while the front wiper is operating at LO or HI speed.
• The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-safe control
is activated while the front wiper is set in the INT mode and the front wiper motor is operating.
• Returns automatically wiper to stop position when ignition switch is turned ON if fail-safe control
is activated while front wiper motor is operated and wiper stop in the other position than stop
position.
Ignition switch
Front wiper switch
Front wiper stop position signal
ON
OFF
The front wiper stop position signal (stop position) cannot be input for 10 seconds.
ON
The front wiper stop position signal does not change for 10 seconds.
JPLIA1257GB
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