Mitsubishi Galant. Manual — part 571

KEYLESS ENTRY SYSTEM

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TRUNK LID LOCK KEY CYLINDER SWITCH
CONTINUITY CHECK <VEHICLES WITH THEFT-
ALARM SYSTEM>

K EYLESS EN TRY SYSTEM

GENERAL DESCRIPTION

M1428000100069

Some models are equipped with a radio-controlled
keyless entry system. The main features are:

•

Antenna and receiver are incorporated in the
ETACS-ECU.

•

ID code can be registered by using the scan tool
(MUT-II).

•

Transmitter is a key holder type, which
incorporates lock switch, unlock switch, and
panic switch.

•

The signal causes the room light to flash twice
when the door is locked, or light for 15 seconds
when the door unlocked.

•

The signal causes the turn signal light to flash
twice when the door is locked, or flash four times
when the door is unlock.

KEYLESS ENTRY SYSTEM DIAGNOSIS

M1428000700061

The keyless entry system is controlled by the
Simplified Wiring System (SWS). For
troubleshooting, refer to GROUP 54B, Diagnosis

P.54B-9

.

SPECIAL TOOLS

M1428000600064

SWITCH
POSITION

TESTER
CONNECTION

SPECIFIED
CONDITION

ON (Neutral)

1

−

2

Continuity

OFF (Unlock)

-

No continuity

AC000615

TOOL

TOOL NUMBER AND
NAME

REPLACED BY MILLER
TOOL NUMBER

APPLICATION

MB991502 Scan tool (MUT-
II)

DRB-III scan tool

For registration of secret
code

MB991529 Diagnostic trou-
ble code check harness

MB991529

For setting of hazard
answerback function

B991502

MB991529

KEYLESS ENTRY SYSTEM

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ON-VEHICLE SERVICE

HOW TO REPLACE OF THE TRANSMITTER
BATTERY

M1428000900065

CAUTION

Do not allow water or dust stick to enter the inside of the
transmitter when it is open. Also, do not touch the
precision electronic device.
1. Remove the set screw to remove the battery from the

transmitter.

2. Install a battery with its (+) side face-down.

Battery required for replacement: Coin type battery
CR2032

3. Insert the claw first, and assemble the transmitter.

4. Verify that the keyless entry system operates.

ENABLING/DISABLING THE ANSWERBACK
FUNCTION

M1428003200054

If the keyless entry system locks or unlocks the doors, the
dome light flashes or illuminates, the hazard warning light
flashes (hazard answerback function) and the horn sounds
(horn answerback function). The hazard and horn answerback
functions can be enabled or disabled according to the following
procedure:

ENABLING/DISABLING THE HAZARD
ANSWERBACK FUNCTION

The hazard answerback function can be enabled or disabled by
one of the two following procedures.

AC000509

BATTERY

CLAW

SCREW

AB

KEYLESS ENTRY SYSTEM

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<When the transmitter is used after connecting scan tool
MB991502 to the data link connector or grounding data
link connector terminal (1)>

1. Enter the hazard answerback customize mode by observing

one of the following steps. If the ETACS-ECU enters the
customize mode, its tone alarm will sound once.

(1) Connect scan tool MB991502 to the data link connector

terminal (1).

(2) Turn the ignition switch to "LOCK"(OFF) position.
(3) Close the driver's side door.
(4) Leave the windshield washer switch on for at least ten

seconds. Then the ETACS-ECU tone alarm will sound
once.

2. If the transmitter "LOCK" switch is pushed consecutively

twice (within two seconds), the ETACS-ECU tone alarm will
sound, indicating that the hazard answerback function can
be enabled or disabled when the doors are locked.

••••

Enable the hazard answerback function when the
doors are locked: The ETACS-ECU tone alarm will
sound once.

••••

Disable the hazard answerback function when the
doors are locked: The ETACS-ECU tone alarm will
sound twice.

3. If the transmitter "UNLOCK" switch is pushed consecutively

twice (within two seconds), the ETACS-ECU tone alarm will
sound, indicating that the hazard answerback function can
be enabled or disabled when the doors are unlocked.

••••

Enable the hazard answerback function when the
doors are unlocked: The ETACS-ECU tone alarm
will sound once.

••••

Disable the hazard answerback function when the
doors are unlocked: The ETACS-ECU tone alarm
will sound twice.

4. Exit the hazard answerback customize mode by observing

one of the following steps.

(1) Disconnect scan tool MB991502 from the data link

connector, or disconnect data link connector terminal (1)
form the ground.

(2) Turn the ignition switch to position other then

"LOCK"(OFF), or remove the ignition key.

(3) Open the driver's side door,

AC000617

16 PIN

MB991502

AB

AC000618AB

MB991529

DATA LINK

CONNECTOR

KEYLESS ENTRY SYSTEM

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NOTE: If any operation is not done for at least three minutes
after the ETACS-ECU has entered the customize mode, the
hazard answerback customize mode will be canceled
automatically.

<When only the transmitter is used>
1. Remove the ignition key.

2. Push the "LOCK" switch while holding the "UNLOCK" switch

pushed for four to ten seconds.

3. If the "LOCK" switch and "UNLOCK" switch are released in

that order, the ETACS-ECU tone alarm will sound, indicating
that the hazard answerback function can be enabled or
disabled when the doors are locked.

••••

Enable the hazard answerback function when the
doors are locked: The ETACS-ECU tone alarm will
sound once.

••••

Disable the hazard answerback function when the
doors are locked: The ETACS-ECU tone alarm will
sound twice.

4. If the "UNLOCK" switch and "LOCK" switch are released in

that order, the ETACS-ECU tone alarm will sound, indicating
that the hazard answerback function can be enabled or
disabled when the door are unlocked.

••••

Enable the hazard answerback function when the
doors are unlocked: The ETACS-ECU tone alarm
will sound once.

••••

Disable the hazard answerback function when the
doors are unlocked: The ETACS-ECU tone alarm
will sound twice.

ENABLING/DISABLING THE HORN
ANSWERBACK FUNCTION

1. Remove the ignition key.

2. Push the "UNLOCK" switch while holding the "LOCK" switch

pushed for four to ten seconds.

3. If the "LOCK" switch and "UNLOCK" switch are released at

the same time, the ETACS-ECU tone alarm will sound,
indicating that the horn answerback function can be enabled
or disabled.

••••

Enable the horn answerback function: The ETACS-
ECU tone alarm will sound once.

••••

Disable the horn answerback function: The ETACS-
ECU tone alarm will sound twice.

HOW TO REGISTER SECRET CODE

M1428001000065

Each individual secret code is registered inside the transmitter,
and so it is necessary to resister these codes with the
EEPROM inside the receiver in the following cases.

•

When the transmitter or ETACS-ECU is replaced

•

If more transmitters are to be used