Mitsubishi Evolution X. Manual — part 527

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-15

Registration flow chart

AC709282

3. KOS ID is registered
to steering lock unit.

3. Automatic registration
of KOS ID.

4. Registration of VIN.

YES

NO

YES

YES

YES

NO

NO

NO

AB

Start of registration.

End of registration.

ECM is replaced.

1. Registration of ENG key code.

Steering lock unit

is replaced.

Keyless

operation key is

replaced or added

(or lost).

6. Registration of keyless
operation key ID.

KOS-ECU
is replaced.

7. Registration of tire
pressure sensor ID*.

YES

NO

TPMS transmitter

is replaced.

NOTE
*: When KOS-ECU or TPMS transmitter is replaced.

Caution:
Do not replace the ECM and the KOS-ECU simultaneously.
Always replace the ECU by ones when the multiple ECU is
replaced and then replace the next ECU after registering
the necessary IDs.

5. Registration of
key ID (every one code).

KOS-ECU is

replaced.

YES

NO

2. Registration of VIN.

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-16

WARNINGS/ALARMS

M1429612300117

If the KOS failed, operated improperly, KOS-ECU
warns the driver of this by setting off the outer tone
alarm and the keyless operation warning indicator,
on the multi information display in the combination
meter. If the TPMS fails or the tire pressure is low,
KOS-ECU warns the driver of that state by the TPMS
warning light and the multi information display in the
combination meter.

Display
contents

Item

State

Warning operations

Warning
cancellation
conditions
(Cancels warning
operations when
one of the
conditions met)

TPMS
warning
light

Multi
information
display

Low keyless
operation key
battery voltage
warning

The keyless
operation key
with low battery
voltage is
detected when
the IG knob is
pressed.

−

• Warning

indicator
flashes for
30 seconds.

• The outer

tone alarm
will not
sound.

• IG knob in

"LOCK" (OFF)
position and
push switch OFF
are detected.

• 30 seconds have

passed after the
warning output
started.

No keyless
operation key
detected inside the
car

No keyless
operation key is
detected inside
the car when the
IG knob is
pressed.

−

• The warning

indicator
flashes for 5
minutes.

• The outer

tone alarm
will not
sound.

• IG knob in

"LOCK" (OFF)
position and
push switch OFF
are detected.

• 5 minutes have

passed after the
warning output
started.

IG knob is not
returned properly.

Opening of the
driver's door is
detected when
the IG knob is in
ACC or LOCK
position and the
push switch is
ON.

−

• The warning

indicator
flashes for 5
minutes.

• The outer

tone alarm
will not
sound.

• Key

reminder
warning tone
alarm
sounds until
closing of the
driver's door
is detected.

• The IG knob in

the "RUN" or
"START"
position, or the
IG knob in the
"LOCK" (OFF)
position, and the
push switch OFF
are detected.

• The driver's door

is detected
closed from the
open position.

• 5 minutes have

passed after the
warning output
started.

AC610126

KEY BATTERY
LOW

AB

AC610127

KEY MISSING

AB

AC610124AB

STEERING
WHEEL LOCK

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-17

Keyless operation
key brought out of
the car warning

The keyless
operation key is
carried out of the
vehicle when the
IG knob is in the
position other
than the LOCK
position, and all
the doors are
closed.

−

• The warning

indicator
flashes for 5
minutes.

• Outer tone

alarm
sounds for
5.69
seconds in
pattern 2.

• IG knob in

"LOCK" (OFF)
position and
push switch OFF
are detected.

• KOS-ECU has

detected a
keyless
operation key
inside the
vehicle.

• 5 minutes have

passed after the
warning output
started.

Door lock does not
operate.

Push switch is
pressed ON
when the IG knob
is in other than
LOCK position.

−

• Warning

indicator
flashes for 5
seconds.

• Outer tone

alarm
sounds for
2.96
seconds in
pattern 1.

• IG knob in

"LOCK" (OFF)
position and
push switch OFF
are detected.

• 5 seconds have

passed after the
warning output
started.

Push switch is
pressed ON
when the keyless
operation key is
inside the car.

• Lock switch on

the keyless
operation switch
is pressed again.

• 5 seconds have

passed after the
warning output
started.

Push switch is
pressed ON
when the door is
ajar.

• All doors are

closed.

• 5 seconds have

passed after the
warning output
started.

Display
contents

Item

State

Warning operations

Warning
cancellation
conditions
(Cancels warning
operations when
one of the
conditions met)

TPMS
warning
light

Multi
information
display

AC610128

CONFIRM
KEY LOCATION

AC

AC610129

CHECK DOORS

AB

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-18

System error

Push switch is
pressed ON from
OFF when an
error has been
detected in
EEPROM in
KOS-ECU.

−

• The warning

indicator
flashes for 5
minutes.

• The outer

tone alarm
will not
sound.

5 minutes have
passed after the
push switch was
pressed ON and IG
knob is in "LOCK"
(OFF) position.

Push switch is
pressed ON from
OFF while open
circuit in the
transmitter
antennas are
being detected.
The push switch
is pressed ON
from OFF while
short circuit in the
power supply
output (steering
lock, transmitter
antennas,
receiver antenna
module, etc.) is
detected.
Steering lock
communication
error has been
detected when
the push switch
was pressed ON.
The IG knob is in
other than the
LOCK position
while some error
is being detected.

Not displayed

TPMS warning light
bulb open circuit
check

The ignition
switch is turned
from "LOCK"
(OFF) to "ON."

Illuminate
s for 3
seconds.

−

3 seconds have
passed after the
TPMS warning light
is lit.

Tire pressure alarm The received tire

pressure value is
under the alarm
ON threshold
value.

Illuminate
s.

Symbol and
"LOW TIRE
PRESSURE" is
displayed.

The received tire
pressure value is
over the alarm OFF
threshold value.

Display
contents

Item

State

Warning operations

Warning
cancellation
conditions
(Cancels warning
operations when
one of the
conditions met)

TPMS
warning
light

Multi
information
display

AC610118

REMOVE KEY

AB

AC610119

a

AB

LOW
TIRE PRESSURE