Mitsubishi Lancer Evolution 7. Manual — part 40
EQUIPMENT –
Smart Wiring System (SWS)
EQUIPMENT –
Smart Wiring System (SWS)
7-13
DIAGNOSTIC FUNCTION
DIAGNOSIS CODE SET
The ETACS-ECU sends diagnosis codes if the communication
line is faulty when the MUT-ll is connected.
NOTE Refer to the Workshop Manual for details of the
diagnostic items.
SWS INPUT SIGNAL CHECK BY MUT-II
When the MUT-II is connected to the diagnostic connector,
and switches input for the SWS are operated, the buzzer
in the MUT-II sounds, indicating whether the operations of
the switches are satisfactory or not.
INPUT SIGNALS THAT CAN BE CHECKED
Input signal
Conditions for sounding buzzer
Ignition switch (ACC)
When the switch is turned from the LOCK (OFF) position to ACC
Ignition switch (IG1)
When the switch is turned from ACC to the ON position
Hazard warning lamp switch
When the switch is turned from the OFF to the ON position
Rear fog lamp switch
When the switch is turned from the OFF to the ON position
Driver’s seat door switch
When the driver’s seat door is opened from the closed state
Various door switches
When one of the closed doors is opened
Driver’s seat door lock actuator
When the key cylinder or door lock knob of the driver seat is turned
from LOCK to UNLOCK position, or from UNLOCK to LOCK
position
Speed signal
When the speed changes from less than 10 km/h to more than
10 km/h
Column
switch
Tail lamp switch
When the lighting switch is turned from one position to the tail lamp
position
Headlamp switch
When the lighting switch is turned from one position to the
headlamp position
Dimmer switch
When the switch is turned from the OFF to the ON position
Passing switch
p
Turn signal lamp LH switch
Turn signal lamp RH switch
Windshield mist wiper switch
Windshield intermittent wiper switch
Windshield low speed wiper switch
Windshield high speed wiper switch
Windshield washer switch
Multi-purpose fuse No.17 load
When the multi-purpose fuse No. 17 is used as the power supply
load
EQUIPMENT –
Smart Wiring System (SWS)
7-14
FUNCTIONS AND CONTROL OF SWS ECUS
The following functions are controlled by the SWS ECUs:
No.
Functions
Control ECU
1
Lamp still ON reminder warning function
ETACS-ECU, column switch
2
Central door lock control function
ETACS-ECU
3
Power window timer function
ETACS-ECU, power window main switch
4
Windshield wiper washer control function
ETACS-ECU, front ECU, column switch
5
Headlamp auto-cut function
ETACS-ECU, front ECU, column switch
6
Flasher timer function
ETACS-ECU, column switch
7
Rear fog lamp function
ETACS-ECU
8
Dimmer type room lamp control function
ETACS-ECU
LAMP STILL ON REMINDER WARNING FUNCTION
When the tail lamp, fog lamp, or headlamp is ON, if the ignition
switch is in “OFF” position and the driver’s door is opened,
a buzzer will sound continuously to warn that the lamp is
illuminated. However, if the tail lamp or headlamp has been
turned off by the headlamp auto-cut function, the buzzer will
not sound.
CENTRAL DOOR LOCK CONTROL FUNCTION
When the driver’s seat door is locked (after the unlock switch
in the driver’s seat door lock actuator is turned OFF, the
lock switch is turned ON), the ETACS-ECU activates the lock
relay output for 0.25 seconds and locks all doors. Next, when
the driver’s seat door is unlocked (after the lock switch in
the driver’s seat unlock actuator is turned OFF, the unlock
switch is turned ON), the ETACS-ECU activates the unlock
relay output for 0.25 seconds and unlocks all doors.
Tail lamp, fog lamp, or
headlamp
Ignition
s w i tc h
position
Driver’s
seat door
switch
B u z z e r
output
ON
OFF
OFF
ON (ACC)
(Open) ON
(Closed) OFF
(Sounds) ON
(Does not sound)
OFF
Lock switch
ON
OFF
Unlock switch
ON
OFF
Lock relay output
ON
OFF
Unlock relay output
ON
OFF
t: 0.25 seconds
t
t
EQUIPMENT –
Smart Wiring System (SWS)
EQUIPMENT –
Smart Wiring System (SWS)
7-15
POWER WINDOW TIMER FUNCTION
When the ignition switch is turned to the ON position, the
power window relay and power window switch reception
permission signals (SWS signal sent from the ETACS) are
turned ON. After the ignition switch is turned OFF, the system
continues to turn ON the power window switch reception
permission signal for about 30 seconds and to enable the
opening and closing of the door window by the power window
switch. The power window relay goes OFF about 30 seconds
after the reception permission signal goes OFF. When the
driver’s seat door is opened while the timer is in operation,
the reception permission signal will be turned ON for about
30 seconds from this point. However, if the driver’s seat door
is closed, the reception permission signal will be turned OFF.
The power window relay goes OFF about 30 seconds after
the reception permission signal goes OFF.
WINDSHIELD WIPER WASHER CONTROL FUNCTION
1. Mist wiper control
When the ignition switch is at the ACC or ON position, if the windshield mist wiper switch of the column
switch is turned ON, the front ECU turns ON the windshield wiper drive signal. At the same time, the
wiper speed switching relay is turned ON (HI), and while the windshield mist wiper switch is ON, the
windshield wiper will operate at high speed. At the point the windshield mist switch is turned ON, if the
windshield wiper has been operating intermittently, the same operations as the above will be performed
while the windshield mist wiper switch is ON. After the windshield mist wiper switch goes OFF, the intermittent
operations will be set again TI seconds after the windshield wiper auto-stop signal is turned ON last.
Windshield mist wiper switch
ON
OFF
Windshield wiper auto-stop signal
ON
OFF
Windshield wiper drive signal
ON
OFF
TI: Intermittent wiper intermittent time
TI
TI
When
windshield
wiper
switch is OFF
When windshield intermittent
wiper is operating
Windshield
wiper
speed
switching relay
(HI) ON
(LO) OFF
Ignition
switch (IG)
Driver’s
seat door
switch
ON
OFF
(Open) ON
(Closed) OFF
Power
window
switch reception
permission sig-
nal
(Permitted)
ON
(Prohibited)
OFF
Power window
relay
ON
OFF
t: 30 seconds
t
t
t
t
t
t
EQUIPMENT –
Smart Wiring System (SWS)
7-16
2. Low Speed Wiper, High Speed Wiper Control
When the ignition switch is at the ACC or ON position, if the windshield low speed wiper switch of the
column switch is turned ON, the front ECU turns ON the windshield wiper drive signal, turns OFF (LO)
the windshield wiper speed relay, and operates the windshield wiper at low speed. Next, when the windshield
high speed wiper switch is turned ON, the windshield wiper drive signal is turned ON, the windshield
wiper speed switching relay is turned ON (HI), and the windshield wiper is operated at high speed.
Windshield low speed
wiper switch
ON
OFF
ON
OFF
Windshield wiper
drive signal
ON
OFF
Low speed operations
High speed operations
Windshield
wiper
speed switching relay
(HI) ON
(LO) OFF
Windshield high speed
wiper switch
Windshield wiper auto-stop
signal
ON
OFF
3. Washer control
When the ignition switch is at the ACC or ON position, if the windshield washer switch of the column
switch is turned ON, the front ECU turns ON the windshield washer relay. The windshield wiper drive
signal is turned ON in 0.3 seconds until 3 seconds after the windshield washer switch goes OFF (The
wiper drive signal output time varies according to the conditions. Refer to the following table for details)
to operate the windshield wiper continuously. When the windshield washer switch is turned ON, if the
windshield wiper is operating intermittently, intermittent operations will be continued after continuous
operations.
Windshield washer switch
ON
OFF
Windshield wiper auto-stop
signal
ON
OFF
Windshield wiper drive
signal
ON
OFF
TI: Intermittent wiper intermittent time
t
T
TI
T
TI
t
TI
When
windshield
wiper
switch is OFF
When windshield intermittent wiper
is operating
ON
OFF
Windshield washer relay
When wiper switch is OFF
When wiper switch is INT
When wiper switch
is LO or HI
t
0.3
seconds
or less
0.3 - 0.5
seconds
0.5 - 0.7
seconds
0.7
seconds
Less
than 0.2
seconds
0.3 - 0.5
seconds
0.5 - 0.7
seconds
0.7
seconds
-
T
0
second
1
second
2
seconds
3
seconds
0
second
1
second
2
seconds
3
seconds
3 seconds
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