Mitsubishi Galant (2004+). Manual - part 203

GENERAL DESCRIPTION

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-3

a. The vehicle speed has reached 8 km/h (5 

mph) while the seat belt switch is turned on 
(driver's seat belt is not fastened) with the 
ignition switch "ON.

b. The seat belt switch has been turned on 

(driver's seat belt has not been fastened) for 
at least ten seconds while the ignition switch 
has been turned "ON" and the vehicle speed 
has been 8 km/h (5 mph) or more.

NOTE: Once the tone alarm has sounded 12 

cycles, it does not sound again until the vehi-
cle speed reduces to 3 km/h (2 mph) or less 
even if any of the following conditions is met.

• The tone alarm stops sounding if the ignition 

switch or the seat belt switch is turned off (the 
driver's seat belt is fastened) while the timer 
operation is active. 

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Door ajar warning buzzer
The buzzer is sounded 4 times by the ETACS-ECU 
to warn the driver if any door is open when the igni-
tion is switched ON and the vehicle speed reaches 8 
km/h (5 mph) or faster. The buzzer will continue to 
sound for 4 times even if the ignition, door status, or 
vehicle speed requirements are not maintained.

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Multi center display operation tone <vehicles 
with multi center display (middle grade type)>
The ETACS-ECU sounds the buzzer when the 
buzzer signal is sent from the multi center display.

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Turn-signal light buzzer
The ETACS-ECU sounds the buzzer in sync with the 
turn signal lights or hazard warning lights.

CENTRAL DOOR LOCKING SYSTEM

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Central door locking system operation
Door unlocking by operating the driver’s door lock 
key cylinder:

• When the ignition key is inserted in the driver’s 

door lock key cylinder and turned clockwise to 
unlock the driver’s door, the ETACS-ECU oper-
ates its door unlock relay and passes a current 
through the door lock actuator of the driver’s door 
for 0.25 seconds to unlock only the driver’s door.

• When the ignition key is turned clockwise again, 

the ETACS-ECU operates its door unlock relay 
and passes a current through the door lock actu-
ators of all doors for 0.25 seconds and to unlock 
all doors.

Door locking or unlocking by operating the driver’s or 
front passenger’s door lock switch:

• When the door is locked by the driver’s or front 

passenger’s door lock switch, the ETACS-ECU 
operates its door lock relay and passes a current 
through the door lock actuators of all doors for 
0.25 seconds to lock all doors.

• When the door is unlocked by the driver’s or front 

passenger's door lock switch, the ETACS-ECU 
operates its door unlock relay and passes a cur-
rent through the door lock actuators of all doors 
for 0.25 seconds to unlock all doors.

• When the door is locked and unlocked by driver’s 

or front passenger's door lock switch consecu-
tively, the ETACS-ECU operates its door lock 
relay and passes a current through the door lock 
actuators of all doors for 0.25 seconds to lock all 
doors. Then, the ETACS-ECU operates its door 
unlock relay and passes a current through the 
door lock actuators of all doors for 0.25 seconds 
to unlock all doors. Due to this, there may be a 
time lag between the driver’s or front passenger's 
door lock switch actuation and the time when all 
doors are unlocked.

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Forgotten key prevention function

• If the driver's door is locked while it is open and 

when the key is still in the ignition key cylinder, 
approximately 0.3 second later the ETACS-ECU 
activates the unlock relay output for 0.25 second 
to prevent the door from being locked with the 
key inside the vehicle. In addition, if locking the 
door was not prevented, a re-try current is sent 
(an unlock relay output ON is sent for 0.25 sec-
ond up to 5 times including the first attempt).

• If the passenger's door or driver's door are locked 

while the passenger's door is open and when the 
key is still in the ignition key cylinder, approxi-
mately 0.3 second later the ETACS-ECU acti-
vates the unlock relay output for 0.25 second to 
prevent the door from being locked with the key 
inside the vehicle. In addition, if locking the door 
was not prevented, a re-try current is sent (an 
unlock relay output ON is sent for 0.25 second up 
to 5 times including the first attempt).

GENERAL DESCRIPTION

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-4

POWER WINDOW RELAY CONTROL

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Power window relay operation
If the ignition switch is turned to "ON" position, the 
power window relay is energized to activate the 
power windows.

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Power window timer function
Even after the ignition is switched off, the 
ETACS-ECU keeps the power window relay acti-
vated for approximately 30 seconds, enabling raising 
and lowering of the power windows by using the 
power window switches. After approximately 30 sec-
onds, the power window relay is deactivated. During 
this timed operation, if the driver or passenger doors 
are opened, the power window relay is deactivated 
from that moment.

KEYLESS ENTRY SYSTEM

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Keyless entry hazard answerback function
If the keyless entry transmitter is used to send a lock 
signal to the ETACS-ECU, all doors, the liftgate, and 
the glass hatch are locked and the hazard warning 
lights flash once. If an unlock signal is sent, the 
driver's door is unlocked first, and if a second signal 
is sent, all doors, the liftgate, and the glass hatch are 
unlocked. Each time the unlock signal is sent, the 
hazard warning lights flash twice.

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Keyless entry horn answerback function
If the keyless entry transmitter is used to send 2 lock 
signals to the ETACS-ECU, the first signal locks all 
doors, the liftgate, and the glass hatch, while the sec-
ond signal sounds the horn once.

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Trunk unlock function
Press the "TRUNK" button twice within 5 seconds 
and the trunk lid will be unlocked.

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Timed locking mechanism
After unlocking the doors with the keyless entry 
transmitter, if no doors are opened or if the ignition 
key is not inserted, the ETACS-ECU automatically 
locks the doors in 30 seconds.

SUNROOF CONTROL

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Sunroof timer function
The ETACS-ECU enables opening and closing of the 
sunroof for 30 seconds after the ignition is switched 
off. During this timed operation, if the driver's or front  
passenger’s door is opened, the sunroof timer func-
tion is deactivated from that moment.

WINDSHIELD WIPERS AND WASHERS

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Low speed wiper, high speed wiper control

• When the ignition switch in at the ACC or ON 

position, and 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.

• 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.

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Intermittent control
ETACS-ECU uses the dial position of the variable 
intermittent wiper control switch and the vehicle 
speed signal sent by the combination meter to calcu-
late the interval to be sent to the front-ECU. The 
front-ECU determines the intermittent time from the 
input SWS data signal, and turns ON the windshield 
wiper drive signal. When the wiper is at the STOP 
position, the windshield wiper auto-stop signal goes 
OFF to turn OFF the windshield wiper drive signal. 
After the intermittent time from when the windshield 
wiper drive signal turned ON, the windshield wiper 
drive signal is turned ON again and the above opera-
tion is repeated.

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Mist wiper control
When the ignition switch is in the ACC or ON posi-
tion, and the windshield mist wiper switch of the col-
umn 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 
(HIGH-SPEED). While the windshield mist wiper 
switch is ON, the windshield wiper will operate at 
high speed. Then, if the windshield mist wiper switch 
is turned off, the wiper operates at low speed until it 
stops at the predetermined park position.
When the windshield mist switch is turned on briefly, 
the wiper operates once at low speed.
At the point the windshield mist switch is turned ON, 
if the windshield wiper has been operating intermit-
tently, the same operations as the above will be per-
formed while the windshield mist wiper switch is ON. 
After the windshield mist wiper switch goes OFF, the 
intermittent operations will be set again after the 
windshield wiper auto-stop signal last is turned ON.

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GENERAL DESCRIPTION

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-5

Washer control
When the ignition switch is in the ACC or ON posi-
tion, and 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 0.15 seconds until 2 seconds 
after the windshield washer switch goes OFF to 
operate the windshield wiper continuously. When the 
windshield washer switch is turned ON, if the wind-
shield wiper is operating intermittently, intermittent 
operations will be continued after continuous opera-
tions.

HEADLIGHT

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Headlight automatic shutdown function
Even if the lighting switch (tail light switch or head-
light switch) is ON, the headlights and tail lights will 
automatically go off in the following conditions to pre-
vent the battery from discharging:
When the ignition key is turned from "ON" to "LOCK" 
(OFF) or "ACC" position with the lighting switch 
turned ON, and this state continues for three min-
utes, the light will automatically be turned off. If the 
driver's seat door is opened during these three min-
utes, the light will go off one second later.

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High-beam indicator
At the same time that the high beams are illumi-
nated, the ETACS-ECU sends a signal to illuminate 
the high-beam indicator via the CAN bus line. The 
combination meter receives the transmitted signal 
and turns the high-beam indicator on and off.

FLASHER TIMER

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Turn signal light
The turn signal light output (flashing signal) is turned 
ON when the ignition switch is ON and the turn signal 
light switch is ON (LH or RH). If the front turn signal 
light or rear turn signal light bulb has burned out, the 
flashing speed increases to indicate that the bulb has 
burned out.

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Hazard warning light
Detects the signal where the hazard warning light 
switch input changes from OFF to ON, and reverse 
the flashing state according to this signal. The haz-
ard warning lights toggle on and off whenever the 
hazard warning light switch is operated.

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Turn signal indicators
At the same time that the turn-signal lights are illumi-
nated, the ETACS-ECU sends a signal to illuminate 
the turn-signal light indicator via the CAN bus line. 
The combination meter receives the transmitted sig-
nal and turns the turn-signal light indicator on and off.

FOG LIGHT

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Fog light
The fog lights will illuminate only when the fog light 
switch is operated while the low-beam headlights are 
on.
The fog lights will be switched off when any of the fol-
lowing conditions is met. The fog lights will also be 
switched off automatically by headlight automatic 
shutdown function.

• When the high-beam headlights are switched on, 

the fog lights will be switched off. If the low-beam 
headlights are switched on again, the fog lights 
will illuminate again.

• When the headlight switch is turned off while the 

tail lights are on or the tail lights and headlights 
are off, the fog lights will be switched off. If the 
low-beam headlights are switched on again, the 
fog lights will not illuminate again.

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Fog light indicator
At the same time that the fog lights are illuminated, 
the ETACS-ECU sends a signal to illuminate the fog 
light indicator via the CAN bus line. The combination 
meter receives the transmitted signal and turns the 
fog light indicator on and off.

INTERIOR LIGHT

ETACS-ECU makes it possible to force operation of 
all ON and OFF light switches in the overhead con-
sole (the dome light, reading light, cargo area light, 
rear personal lights, front door lights, and front foot 
lights). This function is assigned higher priority than 
the controls for the interior light switch that are per-
formed when the doors are in certain positions.

• When the lights are forced on, the illumination 

level is 100% as all interior lights are switched on 
(the dome light, reading light, cargo area light, 
rear personal lights, front door lights, and front 
foot lights). Even when all lights are forced on, 
the interior light automatic shutoff function is 
active.

• When the lights are forced off, all interior lights 

are immediately switched off (the dome light, 
reading light, cargo area light, rear personal 
lights, front door lights, and front foot lights).

GENERAL DESCRIPTION

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-6

When the interior light switch is at DOOR position, 
the ETACS-ECU controls the interior lights as fol-
lows:

• When a door is opened with the ignition switch 

off, the interior lights up to a luminance of 100 
percent. When a door is closed, the interior lights 
dims a luminance of 65 percent, and goes off 30 
seconds later. However, if the ignition switch is 
turned ON or if a door is locked while the interior 
lights is dimming, the dome light will go off at that 
point.

• When a door is opened with the ignition switch 

ON, the interior lights up at a luminance of 100 
percent. When all doors are closed, the interior 
lights go off.

• When the ignition key is removed with all doors 

closed, the interior lights up at a luminance of 100 
percent, and goes off 30 seconds later. However, 
if the ignition key is inserted again or if a door is 
locked while the interior lights is lighting, the inte-
rior lights will go off at that point.

• To check keyless entry operations more easily, 

the interior lights will flash twice when doors are 
locked. When doors are unlocked, the interior 
lights up at a luminance of 100 percent, and goes 
off 15 seconds later.

INTERIOR LIGHT AUTOMATIC 
SHUTDOUN FUNCTION

Illuminated interior lights such as the front dome 
light, etc. (all lights using the dome light fuse as the 
power supply) will automatically go off in the follow-
ing conditions to prevent the battery from discharging 
as a result of forgetting to turn off the lights or incom-
plete closing of the door.

• When the ignition switch is turned off and more 

than 30 minutes pass by with the interior light illu-
minated, the interior lights will go off automati-
cally.

• When the ignition switch is turned off and one of 

the door switches remains open for 30 minutes 
continuously, the interior lights will go off auto-
matically.

SEAT BELT INDICATOR

If any of the following conditions is met with the igni-
tion switch at "ON" or "ST", the ETACS-ECU illumi-
nates, flashes or extinguishes the seat belt indicator 
by using the driver's seat belt switch signal and the 
vehicle speed signal sent from the combination 
meter.

• Illuminates when the ignition switch is at "ON" 

and the seat belt switch is turned on (the driver's 
seat belt is unfastened).

• Flashes and illuminates the indicator 12 cycles 

(after 0.5 seconds) if any of the following condi-
tions is met when sixty seconds or more have 
elapsed since the ignition switch is turned "ON". 
One cycle consists of five-second "flashing" and 
then three-second "illumination".

a. The vehicle speed has reached 8 km/h (5 

mph) while the seat belt switch is turned on 
(driver's seat belt is not fastened) with the 
ignition switch "ON.

b. The seat belt switch has been turned on 

(driver's seat belt has not been fastened) for 
at least ten seconds while the ignition switch 
has been turned "ON" and the vehicle speed 
has been 8 km/h (5 mph) or more.

NOTE: Once this timer operation has been acti-

vated, it will not be activated again until the 
vehicle speed reduces to 3 km/h (2 mph) or 
less even if any of the following conditions is 
met.

• The indicator stops illuminating if the ignition 

switch or the seat belt switch is turned off (the 
driver's seat belt is fastened) while the timer 
operation is active. 

DOOR-AJAR INDICATOR LIGHT

The combination meter receives the signal sent from 
the ETACS-ECU about whether each door (including 
the tailgate and glass hatch) is open or closed and 
turns the door ajar indicator light on and off. While 
the door ajar indicator is illuminated, the door ajar 
warning function is activated and the door ajar indi-
cator light flashes 4 times. If the door remains open 
even after the 4 warning flashes, the door ajar indica-
tor light will be illuminated again.

CONFIGURATION FUNCTION

The following functions can be adjusted by operating 
the middle-grade multi center display (if equipped).

• Keyless entry horn answerback function

• Keyless entry hazard light answerback function

• Timed locking mechanism

• Turn-signal light buzzer

• Door ajar warning buzzer

• Adjustment of door unlocking operation on key-

less entry system

• Vehicle speed-dependent wiper function

• Headlight automatic shutdown function

• Delay-off time of the dome light

• Interior light automatic shutoff function

• Initialization of above mentioned functions