2005 MITSUBISHI LANCER key

KEYLESS ENTRY SYSTEM
BODY42-52
SPECIAL TOOLSM1428000600280
Tool Number Name Use
MB991502 MUT-II sub-assembly Encrypted code registration
MB991529 Diagnosis code check
harness
MB991955
A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991825
F: MB991826MUT-III sub-assembly
A: Vehicle
communication
interface (V.C.I.)
B: MUT-III USB cable
C: MUT-III main
harness A
(Vehicles with CAN
communication
system)
D: MUT-III main
harness B
(Vehicles without
CAN
communication
system)
E: MUT-III
measurement
adapter
F: MUT-III trigger
harnessEncrypted code registration
CAUTION
MUT-III main harness B
(MB991911) should be used.
MUT-III main harness A should
not be used for this vehicle.
B991502
MB991529
MB991910
MB991826
MB991955
MB991911
MB991824
MB991827
MB991825
A
B
C
D
E
F
DO NOT USE

KEYLESS ENTRY SYSTEM
BODY42-53
TROUBLESHOOTINGM1428000700287
The keyless entry system is controlled by the Smart
Wiring System (SWS). For troubleshooting, refer to
GROUP 54B, Troubleshooting P.54B-17 or GROUP
54C, Troubleshooting P.54C-4.
ON-VEHICLE SERVICE
KEYLESS ENTRY SYSTEM CHECKM1428001400096
Check the system as described below. If the system
does not work, carry out troubleshooting. Refer to
GROUP 54B, Troubleshooting P.54B-17, refer to
GROUP 54C, Troubleshooting P.54C-4.
•Operate the transmitter to check that the doors
and tailgate can be locked and unlocked.
•Operate the transmitter to check that the
answerback function works in response to door
and tailgate locking/unlocking.
NOTE: The adjustment function allows you to
change the answerback setting as follows. Prior
to that check, confirm which setting is activated.
.
•The hazard warning lamps flash twice when
locked and once when unlocked. The room
lamp flashes twice when locked and
illuminates for 15 seconds when unlocked.
•The hazard warning lamps do not flash when
locked and flash once when unlocked. The
room lamp flashes twice when locked and
illuminates for 15 seconds when unlocked.
•The hazard warning lamps flash twice when
locked and do not flash when unlocked. The
room lamp flashes twice when locked and
illuminates for 15 seconds when unlocked.
•The hazard warning lamps do not flash when
both locked and unlocked. The room lamp
flashes twice when locked and illuminates for
15 seconds when unlocked.
KEYLESS ENTRY SYSTEM TIMER LOCK
FUNCTION INSPECTION
M1428004000138
Push the transmitter unlock button and check to see
that the doors and tailgate lock within 30
seconds. If it doesn't, then execute troubleshooting
remedies. Refer to GROUP 54B, Troubleshooting
P.54B-17, refer to GROUP 54C, Troubleshooting
P.54C-4.
ENABLING/DISABLING THE
ANSWERBACK FUNCTION
M1428003200214
If the keyless entry system locks or unlocks the
doors, the room lamp flashes or illuminates, the
hazard warning lamp flashes (hazard answerback
function). The hazard answerback function 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.
diagnosis connector (1) is earthed>
1. Enter the hazard answerback customize mode by
performing one of the following steps. If the
ETACS-ECU enters the customize mode, its
buzzer will sound once.
(1) Turn the ignition switch to “LOCK”(OFF)
position.
(2) Turn off the hazard warning lamp switch.
CAUTION
Before connecting or disconnecting the earth,
turn the ignition switch to the "LOCK" (OFF)
position.
(3) Connect the diagnosis connector to the
special tool diagnosis code check harness
(MB991529).
(4) Close the driver's side door.
(5) Keep the windshield washer switch on for at
least ten seconds. Then the ETACS-ECU
buzzer will sound once.
2. If the transmitter “LOCK” button is pushed
consecutively twice (within two seconds), the
ETACS-ECU buzzer will sound, indicating that the
hazard answerback function can be enabled or
disabled when the doors are locked.
AC305133AB
Diagnosis
connector
MB991529Steering shaft

KEYLESS ENTRY SYSTEM
BODY42-54
•Enable the hazard answerback function
when the doors are locked: The
ETACS-ECU buzzer will sound once.
•Disable the hazard answerback function
when the doors are locked: The
ETACS-ECU buzzer will sound twice.
3. If the transmitter “UNLOCK” button is pushed
consecutively twice (within two seconds), the
ETACS-ECU buzzer 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 buzzer will sound once.
•Disable the hazard answerback function
when the doors are unlocked: The
ETACS-ECU buzzer will sound twice.
4. Exit the hazard answerback customize mode by
observing one of the following steps.
(1) Disconnect diagnosis connector terminal (1)
form the earth.
(2) Turn the ignition switch to position other then
“LOCK”(OFF), or remove the ignition key.
(3) Open the driver's side door.
(4) Any other warning buzzer output occurs.
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.
connecting MUT-II to the diagnosis
connector>
1. Enter the hazard answerback customize mode by
performing one of the following steps. If the
ETACS-ECU enters the customize mode, its
buzzer will sound once.
(1) Turn the ignition switch to “LOCK”(OFF)
position.
(2) Turn off the hazard warning lamp switch.
CAUTION
Before connecting or disconnecting the MUT-II,
turn the ignition switch to the "LOCK" (OFF)
position.
(3) Connect the MUT-II to the diagnosis
connector.
(4) Close the driver's side door.
(5) Keep the windshield washer switch on for at
least ten seconds. Then the ETACS-ECU
buzzer will sound once.
2. If the transmitter “LOCK” button is pushed
consecutively twice (within two seconds), the
ETACS-ECU buzzer 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 buzzer will sound once.
•Disable the hazard answerback function
when the doors are locked: The
ETACS-ECU buzzer will sound twice.
3. If the transmitter “UNLOCK” button is pushed
consecutively twice (within two seconds), the
ETACS-ECU buzzer 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 buzzer will sound once.
•Disable the hazard answerback function
when the doors are unlocked: The
ETACS-ECU buzzer will sound twice.
4. Exit the hazard answerback customize mode by
observing one of the following steps.
(1) Disconnect MUT-II from the diagnosis
connector.
(2) Turn the ignition switch to position other then
“LOCK”(OFF), or remove the ignition key.
(3) Open the driver's side door.
(4) Any other warning buzzer output occurs.
AC304777
Steering shaft
ACMB991502
16-Pin

KEYLESS ENTRY SYSTEM
BODY42-55
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.
connecting special tool V. C. I.
(MB991824) to the diagnosis connector>
1. Enter the hazard answerback customize mode by
performing one of the following steps. If the
ETACS-ECU enters the customize mode, its
buzzer will sound once.
(1) Turn the ignition switch to “LOCK”(OFF)
position.
(2) Turn off the hazard warning lamp switch.
CAUTION
Before connecting or disconnecting the V. C. I.,
turn the ignition switch to the "LOCK" (OFF)
position.
(3) Connect the V. C. I. to the diagnosis
connector.
(4) Turn the V.C.I. power switch to the "ON"
position.
(5) Close the driver's side door.
(6) Keep the windshield washer switch on for at
least ten seconds. Then the ETACS-ECU
buzzer will sound once.2. If the transmitter “LOCK” button is pushed
consecutively twice (within two seconds), the
ETACS-ECU buzzer 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 buzzer will sound once.
•Disable the hazard answerback function
when the doors are locked: The
ETACS-ECU buzzer will sound twice.
3. If the transmitter “UNLOCK” button is pushed
consecutively twice (within two seconds), the
ETACS-ECU buzzer 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 buzzer will sound once.
•Disable the hazard answerback function
when the doors are unlocked: The
ETACS-ECU buzzer will sound twice.
4. Exit the hazard answerback customize mode by
observing one of the following steps.
(1) Disconnect V. C. I. from the diagnosis
connector.
(2) Turn the ignition switch to position other then
“LOCK”(OFF), or remove the ignition key.
(3) Open the driver's side door.
(4) Any other warning buzzer output occurs.
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.
HOW TO REGISTER SECRET CODEM1428001000292
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
•If it appears that a problem is occurring because
of faulty registration of a code.
A maximum of four different codes can be stored in
the EEPROM memory (four different transmitters can
be used). When the code for the first transmitter is
registered, the previously registered codes for all
transmitters are cleared. Therefore, if you are using
four transmitters or are adding more transmitters, the
codes for all transmitters must be registered at the
same time.
AC305153AB
MB991911
MB991824
16-Pin

KEYLESS ENTRY SYSTEM
BODY42-56
WHEN THE SPECIAL TOOL DIAGNOSIS
CODE CHECK HARNESS (MB991529) IS
USED
1. Check that the doors lock normally when the key
is used.
2. Insert the ignition key.
CAUTION
Before connecting or disconnecting the earth,
turn the ignition switch to the "LOCK" (OFF)
position.
3. Connect the diagnosis connector to the special
tool diagnosis code check harness (MB991529).
NOTE: This will connect terminal (1) of the
diagnosis connector to earth, and the system will
be in secret code registration standby mode.
4. Press the hazard warning lamp switch six times
within 10 seconds.
NOTE: Once the process is completed six times,
then it will operate with all doors and tailgate lock
and unlock operations once and then go to the
save mode.
NOTE: The hazard warning lamp switch is turned
on and off alternately whenever it is pushed.
5. Press the transmitter switch, and then press it two
times within 10 seconds of the first press. This will
register the code.
6. Once the program is saved, it will operate once
with the all doors and tailgate lock and unlock
operations. 7. If you are using two or more transmitters or have
added a second transmitter, the same registration
procedure should be carried out within one minute
after registering the code for the first transmitter.
8. Registration mode will be cancelled under the
following conditions:
•When the secret code for four transmitters has
been registered;
•When one minute has passed after registration
mode started;
•When the diagnosis connector is disconnected
from earth;
•When the key is removed from the key cylinder;
9. After the registration is completed, remove the
ignition key and close all the doors, and then
check that the keyless entry system operates
normally.
WHEN THE MUT-II IS USED
1. Check that the doors lock normally when the key
is used.
2. Insert the ignition key.
CAUTION
Before connecting or disconnecting the MUT-II,
turn the ignition switch to the "LOCK" (OFF)
position.
3. Connect the MUT-II to the diagnosis connector.
4. Press the hazard warning switch six times within
10 seconds.
AC305133AB
Diagnosis
connector
MB991529Steering shaft
ACX00571
Ground connected
Within 10 seconds
Hazard
warning
switchON
OFF12345
6
AGAC304777
Steering shaft
ACMB991502
16-Pin
ACX00571
MUT-II connected
Within 10 seconds
Hazard
warning
switchON
OFF12345
6
AB

KEYLESS ENTRY SYSTEM
BODY42-57
NOTE: Once the process is completed six times,
then it will operate with all doors and tailgate lock
and unlock operations once and then go to the
save mode.
NOTE: The hazard warning lamp switch is turned
on and off alternately whenever it is pushed.
5. Press the transmitter switch, and then press it two
times within 10 seconds of the first press. This will
register the code.
6. Once the program is saved, it will operate once
with the all doors and tailgate lock and unlock
operations.
7. If you are using two or more transmitters or have
added a second transmitter, the same registration
procedure should be carried out within one minute
after registering the code for the first transmitter.
8. Registration mode will be cancelled under the
following conditions:
•When the secret code for four transmitters has
been registered;
•When one minute has passed after registration
mode started;
•When the MUT-II is disconnected from the
diagnosis connector;
•When the key is removed from the key cylinder;
9. After the registration is completed, remove the
ignition key and close all the doors, and then
check that the keyless entry system operates
normally.
WHEN THE SPECIAL TOOL V. C. I.
(MB991824) IS USED
1. Check that the doors lock normally when the key
is used.
2. Insert the ignition key.
CAUTION
Before connecting or disconnecting the V. C. I.,
turn the ignition switch to the "LOCK" (OFF)
position.
3. Connect the V. C. I. to the diagnosis connector.
4. Within 10 seconds after turning the V.C.I. power
switch to the "ON" position, press the hazard
switch six times.
NOTE: Once the process is completed six times,
then it will operate with all doors and tailgate lock
and unlock operations once and then go to the
save mode.
NOTE: The hazard warning lamp switch is turned
on and off alternately whenever it is pushed.
5. Press the transmitter switch, and then press it two
times within 10 seconds of the first press. This will
register the code.
6. Once the program is saved, it will operate once
with the all doors and tailgate lock and unlock
operations.
AC305153AB
MB991911
MB991824
16-Pin
ACX00571
Connect V. C. I. and turn
the V. C. I. power supply
switch ON.
Within 10 seconds
Hazard
warning
switchON
OFF1234 56
AJ

KEYLESS ENTRY SYSTEM
BODY42-58
7. If you are using two or more transmitters or have
added a second transmitter, the same registration
procedure should be carried out within one minute
after registering the code for the first transmitter.
8. Registration mode will be cancelled under the
following conditions:
•When the secret code for four transmitters has
been registered;•When one minute has passed after registration
mode started;
•When the V.C.I. is disconnected from the
diagnosis connector;
•When the key is removed from the key cylinder;
9. After the registration is completed, remove the
ignition key and close all the doors, and then
check that the keyless entry system operates
normally.
TRANSMITTER
DISASSEMBLY AND REASSEMBLYM1428002800172
Post-reassembly operation
•Transmitter operation check
AC310838AC303199
AC3041181 2
AF
5
3
4
6
Disassembly steps
1. Screw
2. Upper cover
3. Transponder4. Transmitter assembly
<> >>A<<5. Battery
6. Master keyDisassembly steps (Continued)

KEYLESS ENTRY SYSTEM
BODY42-59
DISASSEMBLY SERVICE POINT
<> BATTERY REMOVAL
CAUTION
Do not allow water or dust to enter the inside of
the transmitter assembly when it is open. Also,
do not touch the precision electronic device.
REASSEMBLY SERVICE POINT
>>A<< BATTERY INSTALLATION
CAUTION
Do not allow water or dust to enter the inside of
the transmitter assembly when it is open. Also,
do not touch the precision electronic device.Install a new battery to the transmitter assembly with
its (+) side facing towards the upper cover side.
Battery required for replacement: Coin type
battery CR1616
INSPECTIONM1428003800067
TRANSMITTER BATTERY CHECK
Measure the voltage of the battery. If the voltage of
the battery is not within the standard value, replace
the battery.
Standard value: 2.5 − 3.2 V
AC304118
AD
+ –
Master key sideUpper cover side
Battery Transmitter assembly
AC004486