Page 4601 of 4647
WW-10
FRONT WIPER AND WASHER SYSTEM
Revision: 2007 April2007 M35/M45
Operation Mode
Combination switch reading function has operation modes shown below.
1. Normal status
–When BCM is not in sleep status, OUTPUT terminals (1-5) each turn ON-OFF every 10 ms.
2. Sleep status
–When BCM is in sleep status, transistors of OUTPUT 1 and 5 stop the output, and BCM enters low current
consumption mode. OUTPUT 2, 3, and 4 turn ON-OFF every 60 ms, and only input from lighting switch
system is accepted.
PKIC0272E
Page 4602 of 4647

FRONT WIPER AND WASHER SYSTEM
WW-11
C
D
E
F
G
H
I
J
L
MA
B
WW
Revision: 2007 April2007 M35/M45
Wiper Dial Position Setting
Front wiper intermittent operation delay interval is determined from a combination of 3 switches (intermittent
operation dial position 1, 2, and 3) and vehicle speed signal.
After each intermittent operation delay interval, BCM sends front wiper request signal to IPDM E/R.
Example: For wiper dial position 1
Using combination switch reading function, BCM detects ON/OFF status of intermittent operation dial posi-
tions 1, 2, and 3.
When combination switch status is as listed below, BCM determines that it is wiper dial position 1.
Intermittent operation dial position 1: ON (Continuity exists between combination switch output 3 and input
1.)
Intermittent operation dial position 2: ON (Continuity exists between combination switch output 5 and input
1.)
Intermittent operation dial position 3: ON (Continuity exists between combination switch output 4 and input
2.)
BCM determines front wiper intermittent operation delay interval from wiper dial position and vehicle speed,
and sends wiper request signal (INT) to IPDM E/R.
CAN Communication System DescriptionNKS003WD
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-board multi-
plex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNKS003WE
Refer to LAN-50, "CAN System Specification Chart" .
Wiper dial positionIntermittent operation
intervalCombination switch
Intermittent operation
dial position 1Intermittent operation
dial position 2Intermittent operation
dial position 3
1
Short
↑
↓
LongON ON ON
2ONONOFF
3ONOFFOFF
4 OFF OFF OFF
5OFFOFFON
6 OFF ON ON
7 OFF ON OFF
Page 4603 of 4647
WW-12
FRONT WIPER AND WASHER SYSTEM
Revision: 2007 April2007 M35/M45
SchematicNKS003WF
TKWT5089E
Page 4604 of 4647
FRONT WIPER AND WASHER SYSTEM
WW-13
C
D
E
F
G
H
I
J
L
MA
B
WW
Revision: 2007 April2007 M35/M45
Wiring Diagram — WIPER —NKS003WG
TKWT5090E
Page 4605 of 4647
WW-14
FRONT WIPER AND WASHER SYSTEM
Revision: 2007 April2007 M35/M45
TKWT5091E
Page 4606 of 4647
FRONT WIPER AND WASHER SYSTEM
WW-15
C
D
E
F
G
H
I
J
L
MA
B
WW
Revision: 2007 April2007 M35/M45
TKWT5290E
Page 4607 of 4647
WW-16
FRONT WIPER AND WASHER SYSTEM
Revision: 2007 April2007 M35/M45
TKWT5092E
Page 4608 of 4647
FRONT WIPER AND WASHER SYSTEM
WW-17
C
D
E
F
G
H
I
J
L
MA
B
WW
Revision: 2007 April2007 M35/M45
TKWT5093E