1999 MITSUBISHI LANCER EVOLUTION VI key battery

BODY – General / Keyless Entry System42-2
GENERAL
OUTLINE OF CHANGE

The descriptions of the troubleshooting using on MUT-II tester have been incorporated.
KEYLESS ENTRY SYSTEM
SPECIAL TOOL
ToolNumberNameUse
MB991502MUT-II sub assemblyRecording secret codes
TROUBLESHOOTING
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptomInspection procedure No.Reference page
None of the doors can be locked or unlocked using the transmitter.142-2
All of the doors can be locked and unlocked using the transmitter,
but the room lamp does not flash or illuminate. (However, the room
lamp operates normally when the doors are opened and closed.)242-4
Secret codes cannot be registered.342-4
INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
INSPECTION PROCEDURE 1
None of the doors can be locked or unlocked using the
transmitter.
Probable cause
The cause may be a malfunction of the transmitter, a malfunction of the receiver
or the lock and unlock signals are not being input to the ETACS-ECU.
Malfunction of transmitter

Malfunction of receiver

Malfunction of ETACS-ECU

Malfunction of wiring harness or connector

Malfunction of key reminder switch

Malfunction of door switch
NG
To next page
OK
Replace the transmitter battery. (Refer to P.42-7.)
Ye s
Has the secret code been registered properly? *NGRe-register the secret code. (Refer to P.42-8.)
Can the doors be locked and unlocked by the driver’s-side door
key cylinder and lock knob?NoCheck the centre door lock system.
NOTE
*: This should be done if a transmitter or receiver has been replaced, and if a secret code has not
been registered properly.

BODY – Keyless Entry System42-7
KEYLESS ENTRY SYSTEM
REMOVAL AND INSTALLATION
1
2
Keyless entry receiver removal
steps

Front seat assembly (driver’s side)
1. Keyless entry receiverETACS-ECU removal
2. ETACS-ECU
TRANSMITTER
DISASSEMBLY AND REASSEMBLY
Post-assembly Operation

Transmitter operation check
1
2
34
Disassembly steps
1. Screw
2. TapeA3. Battery
4. Master key assembly

BODY – Keyless Entry System42-8
ASSEMBLY SERVICE POINTS
ABATTERY INSTALLATION
Install a new battery with (+) side upward.
Battery required for replacement:
Lithium battery CR1216
SECRET CODE REGISTRATION METHOD
Each individual secret code is registered inside
the transmitter, and so it is necessary to register
these codes with the EEPROM inside the receiver
in the following cases.

When either the transmitter or receiver is
replaced;

If it appears that a problem is occurring because
of faulty registration of a code.
A maximum of two different codes can be stored
in the memory area of the EEPROM (two different
transmitters can be used). When the code for the
first transmitter is registered, the previously-regis-
tered codes for two transmitters are cleared.
Therefore, if you are using two transmitters or are
adding a second transmitter, the codes for both
transmitters must be registered at the same time.
Before beginning with the registration, check that
the doors lock normally when the key is used.
1. Connect the MUT-II to the diagnosis connector.
NOTE
This will connect terminal (1) of the diagnosis
connector to earth, and the system will be in
secret code registration standby mode.
Caution
Always turn the ignition switch to OFF before
connecting and disconnecting the MUT-II.
2. Close all the doors.
3. Turn the ignition switch to ACC and then back
to OFF.NOTE
The doors will lock and unlock once at this
time and the system will switch to registration
mode.
4. Press the transmitter switch, and then press
it two times within 10 seconds of the first press.
This will register the code.
5. After registration is completed, the doors will
be automatically locked and unlocked once.
6. If you are using two transmitters or have added
a second transmitter, the same registration
procedure should be carried out for the second
transmitter, and it should be carried out within
one minute after registration of the code for
the first transmitter has been completed. After
the second registration is completed, the doors
will be automatically locked and unlocked once.
7. Registration mode will be cancelled if one of
the following conditions is met.

When the secret codes for two transmitters
have been registered;

When 1 minute has passed after
registration mode started;

If the MUT-II is disconnected (the earth
connection is broken);

If the ignition switch is turned to ON;

If any of the doors are opened;
8. After registration is completed, carry out the
following to check if the keyless entry system
is operable properly.

Remove the ignition key.

Close all the doors.

SRS – SRS Maintenance52B-16
SRS COMPONENT VISUAL CHECK
Turn the ignition key to the LOCK (OFF) position, disconnect
the negative battery cable and tape the terminal.
Caution
Wait at least 60 seconds after disconnecting the battery
cable before doing any further work. (Refer to P.52B-3.)
SRS CONTROL UNIT (SRS-ECU)
1. Check SRS-ECU case and brackets for dents, cracks,
deformation or rust.
Caution
The SRS may not activate if the SRS-ECU is not
installed properly, which could result in serious injury
or death to the vehicle’s driver or front passenger.
2. Check connector for damage, and terminals for
deformation or rust.
Replace SRS-ECU if it fails visual check.
(Refer to P.52B-24.)
AIR BAG MODULES, STEERING WHEEL AND CLOCK
SPRING
1. Remove the air bag modules, steering wheel and clock
spring. (Refer to P.52B-25.)
Caution
The removed air bag modules should be stored in
a clean, dry place with the pad cover face up.
2. Check pad cover for dents, cracks or deformation.
Insulating tape
Battery
Battery (–) cable
SRS-ECU
Pad cover


Pad cover

SRS – SRS Maintenance52B-18
BODY WIRING HARNESS
* Body wiring harness
NOTE
*: Vehicles with front passenger’s air bag
1. Check connector for poor connection.
2. Check harnesses for binds, connectors for damage, and
terminals for deformation.
REPLACE ANY CONNECTORS OR HARNESS THAT
FAIL THE VISUAL INSPECTION. (Refer to P.52B-3.)
Caution
The SRS may not activate if SRS harnesses or
connectors are damaged or improperly connected,
which could result in serious injury or death to the
vehicle’s driver or front passenger.
POST-INSTALLATION INSPECTION
Reconnect the negative battery terminal. Turn the ignition
key to the “ON” position. Does the SRS warning lamp illuminate
for about 7 seconds, turn off and then remain extinguished
for at least 5 seconds? If yes, SRS system is functioning
properly. If no, consult page 52B-6.
SRS warning lamp

SRS – SRS-ECU52B-24
SRS AIR BAG CONTROL UNIT (SRS-ECU)
Caution
1. Disconnect the battery (–) terminal and wait
for 60 seconds or more before starting work.
Furthermore, the disconnected battery
terminal should be covered with tape to
insulate it. (Refer to P.52B-3.)
2. Never attempt to disassemble or repair the
SRS-ECU. If faulty, replace it.3. Do not drop or subject the SRS-ECU to
impact or vibration.
If denting, cracking, deformation, or rust
are discovered in the SRS-ECU, replace it
with a new SRS-ECU. Discard the old one.
4. After deployment of an air bag, replace the
SRS-ECU with a new one.
REMOVAL AND INSTALLATION
Pre-removal Operation

Turn the ignition key to the LOCK (OFF) position.

Negative (–) battery cable connection
1
4.9 Nm
Removal steps

Floor console
1. SRS-ECUInstallation steps
B
Post-installation inspection

Negative (–) battery cable connection
A1. SRS-ECU

Floor console

SRS – SRS-ECU / Air Bag Modules and Clock Spring52B-25
INSTALLATION SERVICE POINTS
ASRS-ECU INSTALLATION
Caution
The SRS may not activate if SRS-ECU is not installed
properly, which could result in serious injury or death
to the vehicle’s driver or front passenger.
BPOST-INSTALLATION INSPECTION
1. Reconnect the negative battery terminal.
2. Turn the ignition key to the “ON” position.
3. Does the “SRS” warning lamp illuminate for about 7
seconds, and then remain extinguished for at least 5
seconds after turning OFF?
4. If yes, SRS system is functioning properly.
If no, consult page 52B-6.
INSPECTION

Check the SRS-ECU and brackets for dents, cracks or
deformation.

Check connector for damage, and terminals for
deformation.
Caution
If a dent, crack, deformation or rust is discovered,
replace the SRS-ECU with a new one.
NOTE
For checking of the SRS-ECU other than described above,
refer to the section concerning troubleshooting. (Refer
to P.52B-6.)
AIR BAG MODULES AND CLOCK SPRING
Caution
1. Disconnect the battery (–) terminal and wait
for 60 seconds or more before starting work.
Furthermore, the disconnected battery
terminal should be covered with tape to
insulate it. (Refer to P.52B-3.)
2. Never attempt to disassemble or repair the
air bag modules or clock spring.
If faulty, replace it.
3. Do not drop the air bag modules or clock
spring or allow contact with water, grease
or oil.
Replace it if a dent, crack, deformation or
rust is detected.
4. The air bag modules should be stored on
a flat surface and placed so that the pad
surface is facing upward.
Do not place anything on top of it.5. Do not expose the air bag modules to
temperatures over 93C.
6. Both driver’s side and front passenger’s
side air bag modules should be replaced
with new ones once the respective air bags
were deployed. The clock springs should
also be checked and replaced with new ones
if considered abnormal.
7. Wear gloves and safety glasses when
handling air bags that have already
deployed.
8. An undeployed air bag module should only
be disposed of in accordance with the
procedures (Refer to P.52B-32.)
SRS warning lamp

SRS – Air Bag Modules and Clock Spring52B-26
REMOVAL AND INSTALLATION

Pre-removal Operation

After setting the steering wheel and the front wheels
to the straight ahead position, remove the ignition
key.

Battery negative (–) terminal disconnection
41 Nm2
3
4 1
AB8.9 Nm
NOTE
: Indicates claw position.
Upper
column
cover
Claw
Section B – B
4
AB
8.9 Nm
Section A – A
4
Upper
column
cover
Claw
Driver’s side air bag module
removal steps
A1. Driver’s side air bag module
Clock spring removal steps
A1. Driver’s side air bag module
B2. Steering wheel
3. Lower column cover
C4. Clock springDriver’s side air bag module
installation steps
A
Pre-installation inspection
1. Driver’s side air bag module

Negative (–) battery cable connection
D
Post-installation inspection
Clock spring installation steps
A
Pre-installation inspection
B4. Clock spring
3. Lower column cover
C2. Steering wheel
1. Driver’s side air bag module

Negative (–) battery cable connection
D
Post-installation inspection