Nissan X-Trail 32. Instruction — part 2227
SYSTEM
WW-15
< SYSTEM DESCRIPTION >
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• BCM transmits the front wiper request signal (LOW) 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 (LOW) 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 (LOW).
• The washer pump is grounded through the combination switch with the front washer switch ON.
FRONT WIPER DROP WIPE OPERATION
• BCM controls the front wiper to operate once according to the conditions of front wiper drop wipe operation.
Front wiper drop wipe operating condition
- Ignition switch ON
- Front wiper switch OFF
- Front washer switch OFF
• BCM transmits the front wiper request signal (LOW) to IPDM E/R via CAN communication so that the front
wiper operates once at 3 seconds after front wiper operation linked with washer.
NOTE:
Factory setting of the front wiper drop wipe operation is ON. Front wiper drop wipe operation can be set to ON
or OFF using CONSULT. Refer to
WW-29, "WIPER : CONSULT Function - WIPER"
FRONT WIPER SERVICE POSITION OPERATION
• Front wiper operates at LO and stops so that front wiper can be locked back without interfere the hood.
• BCM transmits the front wiper request signal (LOW) to IPDM E/R via CAN communication for 0.6 seconds
according to the conditions of front wiper service position operation.
Front wiper service position operation conditions (Within 1 minute after turning ignition switch Off)
- Front wiper switch is OFF
- Front wiper is in stop position
- Front wiper switch MIST is operated 2 times (Within 0.47 second)
Front wiper service position operation conditions (During ignition switch is On)
- Front wiper switch is OFF
- Front wiper is in stop position
- Vehicle speed is less than 4 km/h
- Front wiper switch MIST is operated 2 times (Within 0.47 second)
• After the front wiper LO operation, IPDM E/R receives the front wiper request signal (STOP) from BCM and
then stops the front wiper.
• Front wiper returns to stop position when front wiper switch is operated. (If 1 minute or more is passed after
turning ignition switch OFF, front wiper returns to stop position when ignition switch is turned ON and front
wiper switch is operated.)
FRONT WIPER AND WASHER SYSTEM (WITH LIGHT & RAIN SENSOR) : Circuit
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< SYSTEM DESCRIPTION >
SYSTEM
Diagram
INFOID:0000000010785413
FRONT WIPER AND WASHER SYSTEM (WITH LIGHT & RAIN SENSOR) : Fail-safe
INFOID:0000000010785414
IPDM E/R
If No CAN Communication Is Available With BCM
JMLIA5502GB
SYSTEM
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< SYSTEM DESCRIPTION >
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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.
Front Wiper Protection Function
IPDM E/R detects front wiper stop position by front wiper stop position signal.
When front wiper stop position signal is in the condition listed below while the front wiper is operating, IPDM E/
R activates the fail-safe.
BCM
Fail-safe Control By Light & Rain Sensor Malfunction
BCM detects the light & rain sensor serial link error and the light & rain sensor malfunction.
BCM controls the following fail-safe when light & rain sensor has a malfunction.
• Front wiper switch AUTO and sensing rain drop: The condition just before the activation of fail-safe is main-
tained until the front wiper switch is turned OFF.
• Front wiper switch AUTO and not sensing rain drop: Front wiper is LO operation until the front wiper switch is
turned off.
FRONT WIPER AND WASHER SYSTEM (WITHOUT LIGHT & RAIN SENSOR)
FRONT WIPER AND WASHER SYSTEM (WITHOUT LIGHT & RAIN SENSOR) : Sys-
tem Description
INFOID:0000000010785415
SYSTEM DIAGRAM
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
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 ac-
tivated while the front wiper is set in the AUTO mode and the front wiper motor is operating.
Ignition switch
Front wiper switch
Front wiper stop position signal
Fail-safe
ON
OFF
The signal does not change from the battery
voltage for 10 seconds.
Stops front wiper power supply
for 20 seconds
Except OFF
The signal does not change for 10 seconds.
JMLIA5154GB
WW-18
< SYSTEM DESCRIPTION >
SYSTEM
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 relay and the front wiper HI/LO 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 (LOW) 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 relay according to the front wiper request signal (LOW).
FRONT WIPER HI OPERATION
• BCM transmits the front wiper request signal (HIGH) 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 HI/LO relay according to the front
wiper request signal (HIGH).
FRONT WIPER INT OPERATION
• BCM transmits the front wiper request signal (LOW) to IPDM E/R via CAN communication depending on the
front wiper INT operating condition and intermittent operation delay interval according to the wiper volume
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 (LOW) and front wiper request signal (RETURN).
• 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 (LOW) again after the intermittent operation delay interval.
NOTE:
Front wiper INT operation can be set to operation linked or not linked with vehicle speed using CONSULT.
Refer to
WW-29, "WIPER : CONSULT Function - WIPER"
Front wiper intermittent operation with vehicle speed
• BCM calculates the intermittent operation delay interval from the following
- Vehicle speed signal
- Wiper volume dial position
Intermittent operation delay Interval
Unit: Second
*: When operation setting is not linked with vehicle speed.
FRONT WIPER AUTO STOP OPERATION
Wiper volume dial
position
Intermittent
operation
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
Long
↑
↓
Short
62.5
25
15
2
31.25
12.5
7.5
3
18.75
7.5
4.5
4
12.5
5
3
5
6.25
2.5
1.5
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