Nissan Teana J32. Instruction — part 1255
FRONT WIPER AND WASHER SYSTEM
WW-5
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
WW
N
O
P
FUNCTION DIAGNOSIS
FRONT WIPER AND WASHER SYSTEM
System Diagram
INFOID:0000000003774860
System Description
INFOID:0000000003774861
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
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 with CAN communication depending on each
operating condition of the front wiper.
• IPDM E/R turns ON/OFF the integrated front wiper relay and the front wiper high 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 (LO) to IPDM E/R with 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 (LO).
FRONT WIPER HI OPERATION
• BCM transmits the front wiper request signal (HI) to IPDM E/R with 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 high relay according to the front wiper
request signal (HI).
FRONT WIPER INT OPERATION (LINKED WITH VEHICLE SPEED)
JSLIA0135GB
WW-6
< FUNCTION DIAGNOSIS >
FRONT WIPER AND WASHER SYSTEM
• BCM transmits the front wiper request signal (INT) to IPDM E/R with CAN communication according to the
front wiper INT operation condition and the intermittent operation delay interval judged value.
Front wiper INT operating condition
- Ignition switch ON
- Front wiper switch INT
Intermittent operation delay interval judgment
- 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
• IPDM E/R turns the integrated front wiper relay ON 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 after
the front wiper motor is stopped.
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
JPLIA0094GB
FRONT WIPER AND WASHER SYSTEM
WW-7
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
WW
N
O
P
• 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 3 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
WW-8
< FUNCTION DIAGNOSIS >
FRONT WIPER AND WASHER SYSTEM
Component Parts Location
INFOID:0000000003774862
Component Description
INFOID:0000000003774863
1.
Combination switch
2.
Combination meter
3.
Washer pump
4.
IPDM E/R
5.
Front wiper motor
6.
BCM
A.
Radiator core support (RH)
B.
Engine room (left side)
C.
Cowl top, left side of engine room
D.
Behind combination meter
JPLIA1146ZZ
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.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст