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Mitsubishi Pajero Pinin. Manual - part 278

BODY –

Back Door/Keyless Entry System

42-38

BACK DOOR LATCH CONTINUITY CHECK

Switch
position

Terminal No.

position

Back door opend

Back door closed

DOOR LOCK KEY CYLINDER SWITCH CONTINUITY
CHECK <Vehicles with central door locking system>

Switch
position

Terminal No.

position

LOCK

Neutral (OFF)

UNLOCK

KEYLESS ENTRY SYSTEM

TROUBLESHOOTING

The keyless entry system is controlled by the Smart Wiring System (SWS). For troublesshooting, refer
to GROUP 54B – Troubleshooting.

ON-VEHICLE SERVICE

HOW TO REPLACE A BATTERY OF THE
TRANSMITTER

Remove the set screw to remove the battery from the
transmitter.

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

Battery required for replacement:

Coin type battery CR2032

Insert the claw first, and with care not to displace the
O-ring, assemble the transmitter.

Check to see if the keyless entry system operates.

NOTE
(1) Do not let water or dust stick to the inside of the

transmitter when it is open. Also, do not touch the
precision electronic device.

(2) If the O-ring is displaced during the assembly of the

transmitter, water or dust penetrates in it causing
trouble.

Open

Claw

Battery

Screw

O-ring

BODY –

Keyless Entry System

BODY –

Keyless Entry System

42-39

ENCRYPTED CODE REGISTRATION METHOD

Each individual encrypted code is registered inside the
transmitter, and so it is necessary to register these codes
with the EEPROM inside the ETACS-ECU in the following
cases.

When either the transmitter or ETACS-ECU is replaced;

If a second transmitter is 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 memory
area of the EEPROM (four different transmitters can be used).
When the code for the first transmitter is registered, the
previously-registered codes for four transmitters are cleared.
Therefore, if you are using more than two transmitters or are
adding a second transmitter, the codes for all the transmitters
must be registered at the same time.
1.

Check that the doors lock normally when the ignition key
is inserted into the door key cylinder and turned.

Insert the ignition key in the ignition switch.

Connect the MUT-

to the diagnosis connector.

NOTE
This sets the system in encrypted code registration standby
mode. If MUT-

is not used, connect terminal No.1 of

the diagnosis connector to earth.

Caution
Always turn the ignition switch to LOCK (OFF) position
before connecting and disconnecting the MUT-

earth.

Within 10 seconds after connecting the MUT-

or earth,

press the hazard switch six times.

NOTE
(1) The doors will lock and unlock once after pressing

the hazard switch six times, and the system will switch
to registration mode.

(2) The hazard switch alternates between ON and OFF

each time pressing the hazard switch (Refer to
illustration).

Press the lock switch or unlock switch of the transmitter
switch, and then press it two times within 10 seconds
of the first press. This will register the code.

After registration is completed, the doors will be
automatically locked and unlocked once.

If you are using more than two transmitters or have added
a second transmitter, the same registration procedure
should be carried out for the remaining transmitters, and
it should be carried out within one minute after registration
of the code for the first transmitter has been completed.
The registration procedure are all the same for all
transmitters.

MUT-

connected

Within 10 seconds

Hazard
switch

OFF

BODY –

Keyless Entry System

42-40

Registration mode will be terminated under the following
conditions.

When the encrypted codes for four transmitters have
been registered;

When one minute has passed after registration mode
started;

When the MUT-

is disconnected (earth is released);

When the ignition key is removed;

After registration mode has been completed, carry out
the followings to make sure that the keyless entry system
operates.

Pull the ignition key out.

Close all of the doors.

HAZARD LAMP ANSWERBACK ADJUSTMENT

The following functions can be adjusted by operating input switches. The adjustments will be stored in
the ECU memory even after a battery cable is disconnected:

Switching of keyless entry answerback function (From activation to desactivation, or viceversa)

Initialization of all the ETACS functions (From desactivation to activation)

Entry conditions to the adjustment mode
The ETACS-ECU sounds a buzzer once when all of the following conditions are satisfied, and then
enters the adjustment mode:

Hazard warning lamp switch: OFF

Diagnosis control: ON (Connect the MUT-

or earth the diagnosis connector No.1 terminal.)

Key reminder switch: OFF

Ignition switch: LOCK (OFF)

Driver’s door switch: OFF (Close the driver’s door.)

If all of the conditions above are satisfied, the windshield washer switch will be turned on for
more than 10 seconds.

Exit conditions from the adjustment mode
The ETACS-ECU cancels the adjustment mode when any of the following conditions is satisfied:

Diagnosis control: ON (Disconnect the MUT-

or disconnect the diagnosis connector No.1 terminal

from the earth.)

Key reminder switch: ON (Pull out the ignition key.)

Ignition switch: Other than LOCK (OFF)

Driver’s door switch: ON (Open the driver’s door.)

After the ETACS-ECU has entered the adjustment mode, no adjustment is made within 3 minutes
(If any adjustment is made within 3 minutes, the ETACS-ECU monitors a adjustment operation
for other 3 minutes.)

Other warning buzzer(s) sounds

BODY –

Keyless Entry System

BODY –

Keyless Entry System

42-41

Adjustment of functions

Function

Adjustment procedure

Keyless entry answerback function

When the transmitter lock switch is turned on twice continuously within 2
seconds, the lock answerback function toggles on and off.

If the function toggles on, the buzzer sounds once (default condition).

If the function toggles off, the buzzer sounds twice,

When the transmitter unlock switch is turned on twice continuously within 2
seconds, the unlock answerback function toggles on and off.

If the function toggles on, the buzzer sounds once (default condition).

If the function toggles off, the buzzer sounds twice,

Initialization of all the ETACS func-
tions (From desactivation to activa-
tion)

When the windshield washer switch remains on for more than 20 seconds, the
buzzer sounds twice and then all of the following functions will be initialized.

Automatic lighting sensor sensitivity

Automatic headlamp switch-off function

Vehicle-speed dependent wiper

Outside mirror automatic rest function

The buzzer will sound in 10 seconds (indicating that the ETACS-ECU enters
the adjustment mode), but the washer switch must remains off for 20 seconds
in order to initialize all the functions.
If the windshield washer switch remains on for more than 20 seconds without
entering the adjustment mode, the system enters the adjustment mode in 10
seconds, but does not initialize all of the functions.

KEYLESS ENTRY SYSTEM

REMOVAL AND INSTALLATION

Pre-removal and Post-installation Operation
Side Cover Removal and Installation
(See GROUP 52A – Instrument Panel.)

ETACS-ECU

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