Infiniti G35 (V35). Manual — part 800
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FRONT WIPER AND WASHER SYSTEM
BCM - Operation Table of Combination Switches
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BCM reads operation status of combination switch using combinations shown in table below.
Sample Operation: (When Wiper Switch Turned to LOW Position)
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When wiper switch is turned to LOW position, front wiper LOW contact in combination switch turns ON. At
this time if OUTPUT 1 transistor is activated, BCM detects that voltage changes in INPUT 3.
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When BCM detects that voltage changes in INPUT 3 while OUTPUT 1 transistor is ON, it judges that front
wiper switch is in LOW position. Then BCM sends front wiper request signal (LO) to IPDM E/R using CAN
communication.
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If BCM detects that voltage changes in INPUT 3 when OUTPUT 1 transistor is activated again, it recog-
nizes that wiper switch is still in LOW position.
SKIA8640E
PKIC6011E
FRONT WIPER AND WASHER SYSTEM
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NOTE:
Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore after switch is turned ON, electri-
cal loads are activated with time delay. But this time delay is so short that it cannot be detected by human
senses.
Operation Mode
Combination switch reading function has operation modes shown below.
1.
Normal status
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When BCM is not in sleep status, OUTPUT terminals (1-5) each turn ON-OFF every 10 ms.
2.
Sleep status
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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 light
switch system is accepted.
CAN Communication System Description
NKS000LW
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 Unit
NKS000LX
Refer to
LAN-47, "CAN System Specification Chart"
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PKIC4919E
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FRONT WIPER AND WASHER SYSTEM
Schematic
NKS000LY
TKWM3902E
FRONT WIPER AND WASHER SYSTEM
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Wiring Diagram — WIPER —
NKS000LZ
TKWM2226E
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