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42B-1
GROUP 42B
KEYLESS
OPERATION
SYSTEM (KOS)
CONTENTS
GENERAL INFORMATION . . . . . . . .
42B-2
ENGINE STARTING FUNCTION
(IMMOBILIZER FUNCTION) . . . . . . . . . . . .
42B-17
SYSTEM OPERATION. . . . . . . . . . . .
42B-8
TIRE PRESSURE MONITORING SYSTEM
(TPMS) FUNCTION. . . . . . . . . . . . . . . . . . .
42B-21
WARNINGS/ALARMS . . . . . . . . . . . . . . . . .
42B-23
DOOR ENTRY FUNCTION. . . . . . . . . . . . .
42B-8
KEYLESS ENTRY FUNCTION . . . . . . . . . .
42B-13
CUSTOMIZATION FUNCTION . . . . . . 42B-28
42B-2
KEYLESS OPERATION SYSTEM (KOS)
GENERAL INFORMATION
GENERAL INFORMATION
NOTE: In this manual, F.A.S.T.-key (Free-hand
Advanced Security Transmitter) is described as Keyless Operation System (KOS). (KOS is indicated as
F.A.S.T. in the scan tool display.)
The keyless operation system (KOS) enables the
driver to unlock all the doors and the trunk lid by just
pulling the front door outside handle or operating the
trunk lid open switch, without taking the key out from
his/her pocket or bag when he/she is carrying a keyless operation key that is registered to the vehicle's
KOS-ECU. (When the driver's front door outside handle is operated, only the driver's door is unlocked.)
KOS also allows the driver to lock all the doors by
pressing the lock switch on the front door outside
handle (door entry function), and start the engine
without using the conventional mechanical key
(engine start function). Moreover, KOS incorporates
the keyless entry function with which, like the conventional keyless entry system, a driver can perform
the remote operation (opening/closing of all the
doors, opening of the trunk lid, warning function to
warn a person who intends to damage the vehicle*)
by operating the lock/unlock button, trunk lid button,
and panic button on the keyless operation key. The
system also incorporates the immobilizer function
that prohibits the starting of engine by using an unauthorized key as well as the tire pressure monitoring
system (TPMS) that issues a warning to a driver by
illuminating or flashing the warning light if an abnormality to the tire pressure or the system error is
detected. KOS has the following features:
TSB Revision
M2421000100276
• Each vehicle is provided with two keyless operation keys, and up to four keyless operation keys
can be equipped.
• The keyless operation key also incorporates an
indicator light that enables the driver to check if
the signal is transmitted correctly or if the battery
in the key is discharged. (Refer to P.42B-13.)
• The keyless operation key incorporates an emergency key to lock/unlock the front doors when the
battery in the keyless operation key is discharged
or the keyless operation system is not working
normally. Also by using it simultaneously with the
keyless operation key (insert the emergency key
into the keyless operation key in the inverted
direction), the engine can be started. (Refer to
P.42B-17.)
NOTE: If the immobilizer related system failure
occurs, the engine may not start.
• The driver can customize KOS; enabling the door
entry/engine start function, disabling the door
entry/engine start function, enabling the door
locking/unlocking function only, or enabling the
engine starting function only. (Refer to P.42B-28.)
NOTE: *: Horn sounds, and headlights and taillights
flash.
.
42B-3
KEYLESS OPERATION SYSTEM (KOS)
GENERAL INFORMATION
CONSTRUCTION DIAGRAM
Ignition switch
IG knob
Front of vehicle
ASC-ECU
TPMS transmitter
Interior transmitter
(Tire pressure sensor)
antenna assembly (Front)
KOS-ECU
Steering lock
(Push switch,
Steering lock unit)
IG knob cap
Receiver
antenna module
AC611960
Lock switch and
Unlock sensor
(Passenger's side door)
ECM
Exterior transmitter
antenna assembly
(Passenger's side)
Reciever antenna assembly
Interior transmitter
antenna assembly (Rear)
TPMS transmitter
(Tire pressure sensor)
ETACS-ECU
Lock switch and
Unlock sensor
(Driver's side door)
TPMS transmitter
(Tire pressure sensor)
Exterior transmitter
antenna assembly
(Driver's side)
Antenna and tone alarm assembly
<Exterior transmitter antenna
TPMS transmitter
assembly (Trunk lid),
(Tire pressure sensor) Outer tone alarm>
Lock switch and Unlock sensor
(Driver's side door, Passenger's side door)
A
AC709237
Section A - A
Front door
outside
handle
A
Unlock sensor
Lock switch
Unlock
sensor
AC506891
Door
assembly
AC506892
Trunk lid
opener switch
AC709242 AB
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42B-4
KEYLESS OPERATION SYSTEM (KOS)
GENERAL INFORMATION
Multi information display
(Built in combination meter)
LOW
TIRE PRESSURE
TPMS
warning light
SERVICE
REQUIRED
AC709248AB
Keyless operation key
Indicator light
Lock button
Unlock button
Emergency key
Trunk lid button
Emergency key
Panic button
AC709246AB
.
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KEYLESS OPERATION SYSTEM (KOS)
GENERAL INFORMATION
42B-5
Main components and functions
Parts name
Functional description
KOS-ECU
Controls KOS by using the following inputs/outputs and
communications.
• Input from the unlock sensor and lock switch on each door,
input from the push switch on the IG knob
• Communications with ETACS-ECU, ECM or ASC-ECU and
combination meter via CAN
• Wire communication with the steering lock unit
• Wireless communication with the keyless operation key via
the receiver antenna module, receiver antenna assembly
and interior/exterior transmitter antennas
• Output to the outer tone alarm
Steering lock (incorporates push switch
and steering lock unit)
The steering lock has two unlocking mechanisms; a mechanical
mechanism that uses an emergency key and an electrical
mechanism. In the electrical unlocking mechanism, the steering
lock communicates with KOS-ECU via wire, and when
requested by KOS-ECU, the steering lock unlocks for two
seconds.
Keyless operation key (incorporates
emergency key)
• The keyless operation key receives signals sent from each
interior/exterior transmitter antenna, certifies the keyless
operation key ID code, calculates the key ID, and sends the
reply data signal to KOS-ECU via the receiver antenna
assembly. The lock button, unlock button, and trunk lid
button operations of keyless operation key transmit signals
to KOS-ECU via the receiver antenna assembly.
• If two or more keyless operation keys registered in
KOS-ECU respond at the same time, their signals would
interfere. To avoid this interference, each signal from
KOS-ECU is given the priority*1 data, and the keyless
operation keys respond in accordance with this priority.
Lock switch
Locks all the doors when a driver carrying the keyless operation
key presses the lock switch on the front door outside handle.
Driver's door
Front passenger's
door
Unlock sensor
Driver's door
The unlock sensors incorporated in the driver’s front door
outside handles unlock driver’s the door when a driver carrying
the keyless operation key pulls the driver’s door outside handle.
Front passenger's
door
The unlock sensors incorporated in the passenger's front door
outside handles unlock all the doors when a driver carrying the
keyless operation key pulls the front door outside handle.
Trunk lid opener switch
By pressing the trunk lid opener switch on the trunk lid while
he/she is carrying the keyless operation key, the trunk lid is
unlocked.
NOTE: With the locking of trunk lid, the locking is performed
mechanically when the trunk lid is closed.
Exterior transmitter
antenna assembly
Converts the data output from KOS-ECU via wire into a signal,
and sends it to the keyless operation key. (For the transmission
area, refer to Operation Manual − Door Entry Function
P.42B-8.)
Driver's side
Front passenger's
side
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42B-6
KEYLESS OPERATION SYSTEM (KOS)
GENERAL INFORMATION
Parts name
Functional description
Interior transmitter
antenna assembly
Front
Converts the data output from KOS-ECU via wire into a signal,
and sends it to the keyless operation key. (For the transmission
area, refer to Operation Manual − Engine Start Function
P.42B-17.)
Antenna & tone
alarm assembly
Exterior transmitter
antenna assembly
(trunk lid)
Converts the data output from KOS-ECU via wire into a signal,
and sends it to the keyless operation key. (For the transmission
area, refer to Operation Manual − Door Entry Function
P.42B-8.)
Outer tone alarm
The outer tone alarm sounds when:
• The doors are locked or unlocked by the door entry function.
• The lock switch on the keyless operation switch is pressed
when the IG knob is in the "LOCK" (OFF) position and the
push switch is in other than the "ON" position.
• The lock switch is pressed on the keyless operation key from
inside the car.
• The lock switch on the keyless operation key is pressed
when the door is ajar.
Rear
Receiver antenna module
Receives the keyless operation key ID data which is necessary
for the engine start using the emergency key, and then sends
the data to KOS-ECU.
Receiver antenna assembly
Receives the operation signals from the lock/unlock buttons,
trunk lid button, and panic button on the keyless operation key
as well as the keyless operation key ID data which is necessary
for engine start and the tire pressure signal from the TPMS
transmitter. Then, sends the data to KOS-ECU.
TPMS transmitter
Measure tire pressure directly, then send radio frequency signal
to receiver antenna assembly.
Combination meter (Multi information
display, TPMS warning light)
Communicates with KOS-ECU via CAN. Receives the warning
request or warning information from KOS-ECU, activates*2 the
warning light. Warning symbol and message is additionally
displayed on the multi information display
ETACS-ECU
Communicates with KOS-ECU via CAN. By the door
lock/unlock request, trunk open request, or panic alarm request
from KOS-ECU, ETACS-ECU outputs the lock/unlock signal,
trunk open signal, or panic alarm signal. When the door
lock/unlock signal is output, ETACS-ECU flashes or illuminates
the turn signal light and dome light to notify that the lock/unlock
operation is performed.
ECM
Communicates with KOS-ECU via CAN. Permits/inhibits the
engine starting and controls the engine operation. Send
atmospheric pressure data.
ASC-ECU
Communicates with KOS-ECU via CAN. Sends the vehicle
speed data.
NOTE: *1: When registering the keyless operation
keys, KOS-ECU numbers each key (1 to 4) in the
order they are registered (initial priority). This priority
is renewed each time the doors are locked/unlocked
and the IG knob is pressed. For example, when only
keys 1 and 3 have responded to the signal sent from
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KOS-ECU, the new priority of the keys would be
1-3-2-4. When keys 3 and 4 have responded, then
the priority of the keys becomes 3-4-1-2.
NOTE: *2: Illuminates for tire pressure warning.
Flashes for about 1 minute and then continuously
illuminated for TPMS malfunction warning.
42B-7
KEYLESS OPERATION SYSTEM (KOS)
GENERAL INFORMATION
.
System configuration
Dome light,
Ignition key cylinder
illumination light
Head light,
Tail light
Horn
Key reminder switch
CAN-B
communication
Steering unit
Door lock actuator
ETACS-ECU
Push switch
Trunk lid latch
CAN-C communication
Steering lock unit
Turn-signal light
ECM
Unlock sensor and
lock switch
(Driver's side door)
ASC-ECU
Combination meter
(Multi information display, TPMS warning light)
KOS-ECU
Unlock sensor and
lock switch
(Passenger's side door)
Trunk lid opener switch
Exterior transmitter
antenna assembly
Interior transmitter
antenna assembly
Outer tone alarm
Driver's side
Front
Receiver antenna
assembly
Passenger's side
Rear
Radio
frequency
signal
Radio
frequency
signal
Receiver
antenna
module
Trunk lid
Low
frequency
signal
Low
frequency
signal
Low
frequency
signal
Keyless operation key
Lock/Unlock/Trunk lid button
Antenna
Transmission
circuit
CPU
Pressure
sensor
Front tire (LH)
Front tire (RH)
Panic button
Battery
Indicator light
ACC.
sensor
TPMS transmitter
Emergency key
Rear tire (LH)
Rear tire (RH)
AC709150 AB
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42B-8
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
SYSTEM OPERATION
DOOR ENTRY FUNCTION
M2421009100228
DESCRIPTION OF CONSTRUCTION AND OPERATION
.
<Vehicles outside area>
Front door outside handle (passenger's side)
Trunk lid opener switch
Antenna and buzzer assembly
AC708643
Front door outside handle (driver's side)
Keyless operation key
AC608093
AC708737 AB
Front door outside handle (driver's side, passenger's side)
A
Lock switch
AC703154
AC505249
View A
Trunk lid opener switch
Unlock sensor
AC505250
AC609034
AC705753AC
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42B-9
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
When a driver carrying a keyless operation key
presses the lock switch and the unlock sensor (door
outside handle) on the driver's/passenger's door outside handle or the trunk lid opener switch, the keyless operation key and KOS-ECU communicate to
certify* the keyless operation key. When KOS-ECU
certifies the registered keyless operation key within
70 cm (28 inches) in radius from the outer side of the
vehicle, it requests ETACS-ECU to lock/unlock the
doors (Even within this range, the key may not be
certified when it is positioned too high or too low).
NOTE: *: In the communication for certification of the
keyless operation key, KOS-ECU judges if the keyless operation key ID (specified to keyless operation
key) contained in the response data from the keyless
operation key coincides with the ID that has been
stored in ECU by registration operation. The keyless
operation key sends the response to KOS-ECU only
when the KOS ID (specific to KOS-ECU) contained
in the received data coincided with the stored ID. In
the beginning of the communication for certification,
KOS-ECU creates an encrypted code calculation
factor in random number, and sends it to the keyless
operation key together with the transmit data. The
keyless operation key calculates the code by using
the received factor, and sends the result to
KOS-ECU together with the response data.
KOS-ECU determines that the communication is
established only when the code calculation results of
both parties coincided.
.
UNLOCKING OPERATION OF DOOR
ENTRY FUNCTION
The keyless operation key and KOS-ECU communicate to certify the keyless operation key when the
unlock sensor on the driver-side/front passenger-side door outside handle or the trunk lid opener
switch is turned ON. When KOS-ECU certifies the
registered keyless operation key on the outer side of
the vehicle, it requests ETACS-ECU to unlock the
doors.
.
CONTROL OF UNLOCKING OPERATION
Jamming is not transmitted at
the time of trunk lid operation.
If there is no keyless operation key
response, retry is performed once.
The unlock sensor of door outside handle
ON
(driver's side, passenger's side) or the
trunk lid opener switch
OFF
Transmission
Exterior transmitter antenna
assembly operation side
Un-transmitting
Exterior transmitter antenna
assembly opposite side
Interior transmitter antenna
assembly
Keyless operation key
1 to 4 response
Transmission
Un-transmitting
Transmission
Un-transmitting
Response
Un-answering
c
a
b
d
e
f
h
g
g
g
g
Communication
CAN
Un-communicating
a: Exterior data transmitting start: 0.015 to 0.04 sec
b: Interior data transmitting start: 0.03 to 0.05 sec
c: Keyless operation key 1 response time of
onset 0.035 to 0.06 sec
d: Keyless operation key 2 response time of
onset 0.08 to 0.115 sec
TSB Revision
e: Keyless operation key 3 response time of onset 0.135 to 0.18 sec
d: Keyless operation key 2 response time of onset 0.205 to 0.26 sec
g: CAN communication time of onset: to 0.3 sec
h: Retry time: It is variable by the registration number
(at the time of 4 pieces registration 3.1 sec).
AC500829AD
42B-10
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
1. When KOS-ECU detects that the unlock sensor
on the driver-side/front passenger-side door
outside handle or the trunk lid opener switch is
turned ON, it transmits the exterior data from the
exterior transmitter antenna assembly on the
operation side. At the same time, KOS-ECU
transmits the interfering radio wave* (reversal
code) from the exterior transmitter antenna
assembly on the other side (The interfering radio
wave will be transmitted from the front
passenger-side antenna assembly when the
driver-side door outside handle is operated, and
vice versa. It will not be transmitted when the
trunk lid opener switch is operated).
NOTE: *: The interfering radio wave is transmitted
to disable the door lock operation by a person
without the keyless operation key while a user
with the keyless operation key is operating the
door lock from the opposite side of the vehicle.
2. After the exterior data is transmitted from the
exterior transmitter antenna assembly, the interior
data is transmitted from the interior transmitter
antenna assembly (front, rear).
3. For the specified time period (varies with the
number of the keyless operation keys registered
in KOS-ECU), KOS-ECU monitors the response
from the keyless operation key that meets the
unlock conditions.
• When the keyless operation key receives the
exterior data only, KOS-ECU transmits the unlock
request (request to unlock the applicable position) to ETACS-ECU.
• When KOS-ECU received no response that
enables the unlocking after the specified time
period has passed, it performs the retry cycle
once (When no response after the retry,
KOS-ECU terminates the unlocking operation).
.
TSB Revision
UNLOCKING OPERATION INHIBITION
TIME
Considering the customer pulls the door outer handle
to make sure the doors are locked, unlocking operation is inhibited for three seconds after the doors are
locked by the lock switches on the driver-side/front
passenger-side door outside handle or on the trunk
lid opener switch. This duration can be selected from
zero, three seconds, and five seconds, and can be
switched using a customization function (Refer to
P.42B-28). The initial setting at factory is 3 seconds.
.
UNLOCKING OPERATION INHIBITION
CONDITIONS
The door unlocking operation is inhibited when:
• The emergency key is in the ignition switch.
• The push switch in the steering lock is ON.
• The IG knob is in other than LOCK (OFF) position.
• During the unlocking operation inhibition time
.
LOCKING OPERATION OF DOOR ENTRY
FUNCTION
The keyless operation key and KOS-ECU communicate to certify the keyless operation key when the
lock switch on the driver-side/front passenger-side
door outside handle is turned ON. When KOS-ECU
certifies the registered keyless operation key only on
the outer side of the vehicle, it requests ETACS-ECU
to lock all the doors.
.
42B-11
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
CONTROL OF LOCKING OPERATION
If there is no keyless operation key response,
retry that keyless operation key located outside.
The lock switch of door
ON
outside handle (driver's
side, passenger's side)
OFF
Exterior transmitter Transmission
antenna assembly
Un-transmitting
operation side
Exterior transmitter Transmission
antenna assembly
opposite side
Un-transmitting
Interior transmitter
antenna assembly
Transmission
Un-transmitting
Keyless operation key Response
1 to 4 response
Un-answering
a
b
c
d
e
f
g
g
h
Communication
CAN
Un-communicating
a: Exterior data transmitting start: 0.03 to 0.04 sec
b: Interior data transmitting start: 0.03 to 0.05 sec
c: Keyless operation key 1 response time of
onset 0.035 to 0.06 sec
d: Keyless operation key 2 response time of
onset 0.08 to 0.115 sec
e: Keyless operation key 3 response time of onset 0.135 to 0.18 sec
d: Keyless operation key 2 response time of onset 0.205 to 0.26 sec
g: Retry time: It is variable by the registration number
(at the time of 4 pieces registration 0.31 sec).
h: CAN communication time of onset: to 0.65 sec
1. When KOS-ECU detects that the lock switch on
the driver-side/front passenger-side door outside
handle is turned ON, it transmits the exterior data
from the exterior transmitter antenna assembly on
the operation side. At the same time, KOS-ECU
transmits the interfering radio wave (reversal
code) from the exterior transmitter antenna
assembly on the other side. (The interfering radio
wave will be transmitted from the front
passenger-side antenna assembly when the
driver-side door outside handle is operated, and
vice versa.)
2. After the exterior data is transmitted from the
exterior transmitter antenna assembly, the interior
data is transmitted from the interior transmitter
antenna assembly (front, rear).
3. After the specified time period (varies with the
number of the keyless operation keys registered
in KOS-ECU) has passed, confirm that there is no
keyless operation key in the interior.
• When KOS-ECU receives the response from the
keyless operation keys that received the interior
data, KOS-ECU cancels the locking operation.
TSB Revision
AC607100AB
4. KOS-ECU transmits the interior data from the
interior transmitter antenna assembly (Front).
5. After the specified time period (varies with the
number of the keyless operation keys registered
in KOS-ECU) has passed, confirm that the lock
conditions are met.
• When KOS-ECU receives the response from the
keyless operation keys that received the interior
data, KOS-ECU cancels the locking operation.
• When all the responding keyless operation keys
receive the exterior data only, KOS-ECU transmits the lock request to ETACS-ECU.
• If there is no response from the keyless operation
keys, perform step 6 once.
42B-12
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
6. KOS-ECU transmits the exterior data from the
exterior transmitter antenna assembly on the
operation side. At the same time, KOS-ECU
transmits the interfering radio wave (reversal
code) from the exterior transmitter antenna
assembly on the other side. (The interfering radio
wave will be transmitted from the front
passenger-side antenna assembly when the
driver-side door outside handle is operated, and
vice versa.)
7. After the specified time period (varies with the
number of the keyless operation keys registered
in KOS-ECU) has passed, confirm that the lock
conditions are met.
• When the responded keyless operation keys after
the retry receives the exterior data only,
KOS-ECU transmits the lock request (request to
lock the actuated position) to ETACS-ECU.
LOCKING OPERATION INHIBITION
CONDITIONS
In the following cases, the door locking operation is
inhibited.
• Any door is open/ajar (door switch is ON).
(including door ajar)
• The emergency key is in the ignition switch.
• The push switch in the steering lock is ON.
• The IG knob is in other than LOCK (OFF) position.
.
ANSWERBACK FUNCTIONS
When KOS-ECU sends a signal to ETACS-ECU,
ETACS-ECU outputs the lock/unlock signal and activates the hazard warning light and the outer tone
alarm to notify the driver the doors are
locked/unlocked.
.
Item
Lock signal received
Unlock signal received
ETACS-ECU
Lock signal output
Unlock signal output
Hazard warning light
Flashes once
Flashes twice
Outer tone alarm
Sounds once (initial setting) or none Sounds twice (initial setting) or none
.
KOS TIMER LOCK FUNCTION
When none of the doors are opened within 30 seconds after the doors are unlocked by KOS,
ETACS-ECU automatically outputs the door lock signal to lock the doors. This function prevents the
doors from being unlocked accidentally.
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42B-13
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
KEYLESS ENTRY FUNCTION
M2421000400222
Receiver antenna assembly
KOS-ECU
AC708642
Radio frequency signal
Lock button
Keyless operation key
Trunk lid button
ETACS-ECU
Electric signal
Unlock button
Door lock actuators (lock/unlock)
Trunk lid latch assembly
The signal causes the hazard warning light to flash once
when the doors are locked, or flash twice when unlocked (Default).
The signal causes the dome light to extinguish when
the doors are locked, or come on for 15 seconds when unlocked.
Panic button
AC608093
AC708690
AC708674 AB
.
This keyless entry function has the following features: A keyless entry system enables locking and
unlocking of all doors, the trunk lid from 12m (39.4
feet) away from the vehicle. The following features
are also available.
• A four-knob type keyless operation key with lock,
unlock, trunk lid and panic buttons.
• The receiver antenna assembly incorporates a
receiver and a receiving antenna.
TSB Revision
• Up to four key ID can be registered using scan
tool MB991958 (M.U.T.-III sub-assembly).
• Answerback functions
NOTE: The answerback function can be changed
using a customization function (Refer to
P.42B-28).
• Keyless entry timer lock
NOTE: Timer of the keyless entry timer lock can
be changed using a customization function (Refer
to P.42B-28).
42B-14
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
DESCRIPTION OF CONSTRUCTION AND
OPERATION
.
KEYLESS OPERATION KEY
<Front view>
Indicator light
Lock button
Trunk lid button
Unlock button
Panic button
AC608093
<Rear view>
Three-diamond mark
• The keyless operation key is integrated into the
master key. The four-knob button is adopted, and
the specific encrypted code is transmitted as
radio wave signal.
• A brilliant silver three-diamond mark is stamped
on the back side of the key grip to improve
appearance.
• An indicator light, which illuminates when signals
are sent, is added on the key grip. This indicator
light informs you of the signal transmission status
and warns you of flat battery.
• A signal transmission circuit (printed circuit) and
a battery are housed in one case. The case is
housed in the key grip, thus improving resistance
to water ingress.
• A coin type battery, CR2032 is used in the keyless operation key.
• Using a customization feature, the keyless operation key operation can be changed (Refer to
P.42B-28).
• The keyless operation key button operation
allows the system to operate as follows:
AC608094
AC609441 AB
KEYLESS OPERATION SYSTEM OPERATION TABLE (DEFAULT)
Operation of keyless operation key
System operation
Lock button
Press once
Lock all doors
Unlock button
Press once
Unlock the driver’s door
Press twice
Unlock all doors
Trunk lid button
Press twice (press once,
Open the trunk lid
and then press again within
5 seconds)
Panic alarm
system
Press once (press and hold Starts the panic alarm (headlights flash and
for 1 second).
horn honks for three minutes)
Panic button
Lock button,
Press again
unlock button,
trunk lid button
or panic button
.
TSB Revision
Stops the panic alarm in progress
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
ENCRYPTED CODE
42B-15
RECEIVER
Transmitter lock or unlock button
ON
OFF
Data
code
AC508281AB
Four data codes are transmitted when a switch is
operated once. The encrypted code for user identification is a combination of 0 and 1, and more than 1
million different combinations are available. To prevent theft by copying signal codes, the data code
includes a rolling code with the encrypted code. The
rolling code changes each time a signal is sent.
.
The receiver is incorporated into the receiver
antenna assembly together with the receiving
antenna. It sends the signal the antenna received
from the keyless operation key to KOS-ECU.
KOS-ECU compares this signal with the ID code registered in it, and when they coincided, a signal is output from ETACS-ECU. By connecting scan tool
MB991958 (M.U.T.-III sub-assembly) to the data link
connector, up to four encrypted codes of keyless
operation keys can be registered.
NOTE: IA keyless operation key can be added without using the scan tool. <USA only>
.
FUNCTION FOR CONFIRMING RECEIVER
ANTENNA ASSEMBLY OUTPUT AND
OPERATION
When the KOS-ECU receives an electric wave signal
of the identification code stored in the receiver
antenna assembly, the KOS-ECU outputs
LOCK/UNLOCK signal to the ETACS-ECU and
informs the driver of the keyless entry system operation by flashing the light and blowing horn (Answerback). The initial setting at factory for the
answerback function is as the following table. Using
a customization feature, the answerback function
can be changed (Refer to P.42B-28).
FUNCTION TABLE FOR CONFIRMING KEYLESS ENTRY OPERATION (DEFAULT)
Item
Operation
Doors locked
Doors unlocked
ETACS-ECU (receiver antenna Sends lock signal
assembly)
Sends unlock signal
Dome light
Illuminates for 15 seconds
Flashes once
Turn-signal lights (RH and LH) Flashes once
Flashes twice
Horn
−
Sounds once if doors are already
locked
.
TSB Revision
42B-16
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
KEYLESS ENTRY HAZARD LIGHT
ANSWERBACK FUNCTION
Keyless entry
transmitter
switch
The hazard answerback function that allows checking the lock/unlock state of the door easily even in
the daytime is installed. When the LOCK signal from
the keyless operation key is input to ETACS-ECU, all
doors are locked and the hazard warning light
flashes once. When UNLOCK signal is input, all
doors are unlocked and the hazard warning light
flashes twice.
LOCK
OFF
UNLOCK
ON
Lock relay output
OFF
ON
Unlock relay output
.
OFF
Illuminate
Hazard
warning light Extinguish
AC207001AB
KEYLESS ENTRY DOME LIGHT ANSWERBACK FUNCTION
ON
Unlock relay output
OFF
ON
Lock relay output
OFF
ON
Door lock switch
output
OFF
ON
Door unlock switch
output
OFF
Illuminate
Dome light
Extinguish
b
a
When LOCK signal from the keyless operation key is
input to the ETACS-ECU via receiver antenna
assembly, all doors are locked and the dome light will
extinguish*. When UNLOCK signal is input, all doors
are unlocked and the dome light illuminates for 15
seconds. The dome light fades in, keeps on, and
fades out in 15 seconds after the door unlock relay is
operated.
NOTE: *: If doors are locked with the keyless operation key when the dome light is ON while doors are
opened, the dome light is switched off in 1.2 seconds. In addition, if doors are locked with the keyless
operation key when the dome light is OFF, the dome
light does not work.
.
TSB Revision
b
c
a: 0.6 second
b: 1.2 seconds
c: 15 seconds
AC404883AB
KEYLESS ENTRY HORN ANSWERBACK
FUNCTION
When the LOCK signal from the keyless operation
key is received into ETACS-ECU via receiver
antenna assembly, all doors are locked and the horn
sounds. If the driver's door cannot be locked even
when the keyless operation key is operated, the horn
does not sound.
.
42B-17
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
KEYLESS ENTRY TIMER LOCK TIME
OPERATION INHIBITION CONDITIONS
When none of the doors are opened within 30 seconds after the doors are unlocked by the keyless
entry system, ETACS-ECU automatically outputs the
door lock signal to lock the doors. This function prevents the doors from being unlocked unexpectedly
by operation errors. Using a customization function,
the timer lock period can be changed (Refer to
P.42B-28).
The operation of the system is inhibited when:
• The emergency key is in the ignition switch.
• Any door is open (door switch is ON). (including
door ajar)
THEFT-ALARM SYSTEM
Refer to GROUP 54A, Theft-alarm system P.54A-44.
PANIC ALARM SYSTEM
Refer to GROUP 54A, Panic alarm system
P.54A-46.
.
ENGINE STARTING FUNCTION (IMMOBILIZER FUNCTION)
M2421009200225
When carrying the keyless operation key, a driver
can start/stop the engine by operating only the IG
knob. The immobilizer function prevents the engine
from starting, and immobilizes the vehicle by prohibiting the engine fuel injection ignition if a method
other than the keyless operation key registered for
that vehicle is used in an attempt to start the engine
after forced entry.
CONSTRUCTION DIAGRAM
Emergency key
Keyless operation key
Push switch
(Built in
Steering lock unit)
Radio
frequency
signal
Keyless
operation key
(Rear view)
Radio
frequency
signal
Interior
transmitter
antenna
assembly
(Rear)
Interior
transmitter
antenna
assembly
(Front)
CAN-B
communication
IG knob
unlock signal
AC608095
CAN-C
communication
CPU
CPU
Starter relay
Ignition
OK status signal
IG knob
IG knob cap
Receiver
antenna module
Steering lock
(Built in
Steering lock unit)
Keyless
operation
key ID data
Injector
KOS-ECU
ETACS-ECU
ECM
AC709104AB
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42B-18
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
OPERATION
.
WHEN THE USER IS CARRYING THE
KEYLESS OPERATION KEY
1. Press the IG knob on the steering lock, and the
push switch inside the steering lock is turned ON.
2. When the push switch inside the steering lock is
turned ON, KOS-ECU activates the interior transmitter antenna assembly to send the transmitter
signal to the keyless operation key.
3. On receiving the transmitter signal from
KOS-ECU, the keyless operation key performs
the keyless operation key certification and the
key ID calculation, and sends the keyless operation key ID data to KOS-ECU. (The keyless operation key cannot receive the transmitter signal
from KOS-ECU when it is not located within the
engine starting function valid area .)
4. The receiver antenna receives the signal from the
keyless operation key, and then KOS-ECU compares the keyless operation key ID data sent from
the key with the one registered in it.
5. When this data coincides, KOS-ECU sends the
IG knob unlock signal to the steering lock unit
inside the steering lock.
6. On receiving the IG knob unlock signal, the steering lock unit performs processing (verification of
the KOS ID, etc.) based on the received data.
When no problem is found during the processing,
the unit sends the OK status signal to KOS-ECU,
and at the same time, electrically disengages the
steering lock mechanism to make the IG knob
rotatable.
.
KEYLESS OPERATION KEY TAKE OUT
MONITORING FUNCTION
KOS-ECU monitors whether the keyless operation
key is brought out of the car by performing a certification communication with the keyless operation key
inside the car when all the doors are closed. If the
keyless operation key is brought out of the car while
the IG knob is in the position other than the LOCK
(OFF) position, KOS-ECU notifies that the key is
brought out of the car.
When none of the registered keyless operation keys
(up to four) respond during the communication,
KOS-ECU determines that the key has been brought
out of the car, and the keyless operation key certification agreement memory "does not exist," and does
not permit starting of the engine.
.
TSB Revision
7. When a keyless operation key certification agreement memory "exists" *1 in KOS-ECU when it
received the OK status signal from the steering
lock unit, the engine start permission communication (CAN communication) is performed between
KOS-ECU and the ECM by turning the IG knob
from the "ACC" position to the "ON"/"START"
position, and the engine starts. If the keyless
operation key certification agreement memory
"does not exist" *2, the engine does not start.
NOTE: .
• *1: The keyless operation key certification
agreement memory "exists" means that a registered keyless operation key has been recognized during the keyless operation key
certification communication.
• *2: When the keyless operation key certification agreement memory "does not exist," the
"keyless operation key bringing-out monitoring function" and the "keyless operation key
replacement monitoring function" (keyless
operation key monitoring controls) have
judged that the keyless operation key has
been carried out of the vehicle with the IG
knob in the LOCK "(OFF)" position while turning ON the push switch or in the ACC, ON, or
START position.
NOTE: The monitoring function is inhibited when:
.
• The keyless operation key certification agreement memory "does not exist" from the start.
• The emergency key is in the IG knob.
• The IG knob is in LOCK "(OFF)" position and the
push switch is OFF.
• The vehicle is judged running (shift lever is in the
position other than "P" or "N" <TC-SST>, or vehicle speed is 6 km/h or higher).
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
KEYLESS OPERATION KEY
REPLACEMENT MONITORING
FUNCTION
If the keyless operation key carrying-out monitoring
function once detects that the key has been carried
out of the vehicle with the IG knob in the LOCK
"(OFF)" position and with the push switch in other
than OFF, and then the key is brought into the vehicle, the engine must be started when the IG knob is
turned to the ON or START position. For this purpose, KOS-ECU performs the certification communication with the keyless operation key inside the
vehicle every 5 seconds to monitor the replacement
of the keyless operation key. When any of the registered keyless operation keys sends a response,
KOS-ECU determines that the key has been brought
into the vehicle (replaced), and sets the keyless
operation key certification agreement memory to
"exist," and permits starting of the engine.
42B-19
NOTE: The monitoring function is inhibited when:
.
• The keyless operation key certification agreement memory "exists" from the start.
• The emergency key is in the IG knob.
• The IG knob is in LOCK (OFF) position and the
push switch is OFF.
• The vehicle is judged running (shift lever is in the
position other than "P" or "N" <TC-SST>, or vehicle speed is 6 km/h or higher).
ENGINE STARTING FUNCTION VALID
AREA
The engine can be started only when the keyless
operation key is within the interior antenna receiving
area.
Interior transmitter antenna assembly (Front)
Interior transmitter antenna assembly (Rear)
Antenna receiving area
Emergency function
The emergency function is adopted, which starts the
engine by a combination of emergency key and keyless operation key when the IG knob operation is
unavailable in case such as discharged battery. Also,
the engine can be started using the conventional
ignition key (transponder).
TSB Revision
AC709160 AB
42B-20
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
CONSTRUCTION DIAGRAM
Receiver
antenna
module
Transponder
KOS-ECU
ETACS-ECU
ECM
Starter relay
CPU
CAN-B
CAN-C
CPU
Ignition
Key ID
CAN
CAN
Keyless operation key
Steering lock
Injection
Emergency key
AC707540AC
OPERATION
.
Receiver antenna
module
IG knob
Emergency key
Keyless operation key
AC609293AB
1. Remove the IG knob cap, and insert the emergency key into the keyless operation key in the
inverted direction, then insert it into the KOS
steering lock. Because the transponder (small
transmitter) integrated in the keyless operation
key only emits weak radio frequency signals,
operate the emergency key with the keyless
operation key inserted in the inverted direction.
Using the keyless operation key, push in the
emergency key, and then turn the key.
TSB Revision
2. When the emergency key is turned to the ON
position, the transponder integrated in the keyless operation key transmits an ID code unique to
each key (key ID) to the receiver antenna module
by radio.
3. KOS-ECU compares the sent key ID with the
already-registered ID code, and only when they
match, KOS-ECU permits the starting of engine.
(More than one trillion of ID code combinations
can be registered. This feature prevents code
copying, resulting in higher security of the system.)
NOTE: .
• The transponder integrated in the keyless operation key uses the power supplied from the
receiver antenna module. Therefore, it can be
used even when the battery in keyless operation
key is discharged.
• One keyless operation key is provided, and up to
four keys can be registered to one vehicle as
needed. Also for the number of emergency keys,
the same number of keys as that of keyless operation keys can be registered to one vehicle.
• When KOS-ECU is replaced or when the keyless
operation key is lost or added, the ID codes for all
the keyless operation keys must be registered
again using the scan tool.
42B-21
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
TIRE PRESSURE MONITORING SYSTEM (TPMS) FUNCTION
M2421000600022
When the tire pressure becomes under the specified
value, the TPMS function warns the driver of that
state by illuminating the TPMS warning light.
OPERATION
• The signals from the TPMS transmitter are
received by the receiver antenna assembly and
sent to KOS-ECU.
• KOS-ECU processes input signals from each
TPMS transmitter as well as vehicle speed signals from the ABS-ECU. It receives the atmospheric pressure signal from ECM, and when the
atmospheric pressure is low (such as at high altitude), it calibrates the tire pressure received from
TPMS transmitter and makes a judgment of
warning. When the road tire pressure is low, it
sends a warning signal causing the TPMS warning light to be illuminated. When the TPMS has
problems, it sends a warning signal causing the
TPMS warning light to be flashed*.
NOTE: *: Change to continuous illumination after
flashing for about 1 minute.
• For 3 seconds after the ignition switch is turned to
the "ON" position, KOS-ECU illuminates the
TPMS warning light to check any breaks in the
TPMS warning light circuit.
• By connecting the scan tool to the data link connector, data stored in KOS-ECU (data of tire
pressure and TPMS transmitter ID, the alarm status and warning history, etc.) can be displayed
and TPMS transmitter ID can be registered.
NOTE: If the TPMS transmitter is replaced, register the ID codes of all the TPMS transmitters
again using the scan tool.
TPMS WARNING LIGHT
The TPMS warning light on the combination meter illuminates
or flashes* to alert the driver by request from KOS-ECU. When
the tire pressure warning or the fault warning is activated, a
warning symbol and a message are displayed on the multi
information display.
WARNING DISPLAY PATTERN OF TPMS WARNING LIGHT
AND MULTI INFORMATION DISPLAY
Circumstance
LOW
TIRE PRESSURE
SERVICE
REQUIRED
Warning light Multi
information
display
For 3 seconds
Illuminates
after the ignition
switch is turned to
the "ON" position
(warning light
circuit self-check)
No indication
TPMS problems
Flashes*
Symbol and
"SERVICE
REQUIRED" is
displayed
Low tire pressure
Illuminates
Symbol and
"LOW TIRE
PRESSURE"
is displayed
AC609362
NOTE: *:Change to continuous illumination after flashing about
1 minute.
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42B-22
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
TIRE PRESSURE THRESHOLD VALUES
Item
Tire pressure kPa (psi)
Standard pressure at
cold (reference)
220 (32)
Alarm ON pressure
174 (25.2) or less
Alarm OFF pressure
189 (27.4) or more
TPMS TRANSMITTER (TIRE PRESSURE SENSOR)
The TPMS transmitter combines the valve and tire
pressure sensor in a single unit. The TPMS transmitters are mounted inside the tires. The TPMS transmitter measures tire pressure directly with its tire
pressure sensor and sends radio frequency signals
to KOS-ECU via receiver antenna assembly. The
TPMS transmitter includes acceleration sensor that
senses tire rotation, and change tire pressure sampling and data transmission timing when vehicle is
running.
NOTE: Use only genuine wheels. The use of
non-genuine wheels may cause the improper installation of the TPMS transmitters, possibly resulting in
air leakage and damage to the TPMS transmitter.
.
TIRE PRESSURE SAMPLING TIMING
Vehicle status
Sampling timing
At vehicle moving
once every 5 seconds
At vehicle stationary
once every 1 minute
NOTE: Vehicle moving = vehicle speed: approximately 25 km/h (15 mph) or more
.
DATA TRANSMISSION TIMING
Vehicle status
Transmission timing
At vehicle moving
once every 1 minute*
At vehicle stationary
once every 13 hours
If a sampled pressure varies by ±10 kPa
(1.5psi) from the last transmitted pressure
value, an additional transmission will occur.
NOTE: *: Once every 15 seconds for first 30 transmission after vehicle starts moving.
TSB Revision
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
WARNINGS/ALARMS
M2421009300181
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
KEY BATTERY
LOW
AC610126AB
KEY MISSING
AC610127AB
STEERING
WHEEL LOCK
AC610124AB
Item
State
42B-23
Warning operations
Warning
cancellation
conditions
(Cancels warning
operations when
one of the
conditions met)
TPMS
warning
light
Multi
information
display
−
• 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 No keyless
−
key detected inside operation key is
the car
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.
• 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.
Low keyless
The keyless
operation key battery operation key
voltage warning
with low battery
voltage is
detected when
the IG knob is
pressed.
Opening of the −
driver's door is
detected when
the IG knob is in
ACC or LOCK
position and the
push switch is
ON.
TSB Revision
42B-24
Display
contents
CONFIRM
KEY LOCATION
AC610128 AC
CHECK DOORS
AC610129 AB
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
Item
State
Warning operations
TPMS
warning
light
Multi
information
display
Warning
cancellation
conditions
(Cancels warning
operations when
one of the
conditions met)
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.
Push switch is
pressed ON
when the door is
ajar.
TSB Revision
−
• Lock switch on
the keyless
operation switch
is pressed again.
• 5 seconds have
passed after the
warning output
started.
• All doors are
closed.
• 5 seconds have
passed after the
warning output
started.
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
Display
contents
Item
State
Warning operations
TPMS
warning
light
System error
Push switch is
−
pressed ON
from OFF when
an error has
been detected in
EEPROM in
KOS-ECU.
REMOVE KEY
AC610118 AB
Push switch is
pressed ON
from OFF while
open circuit in
the transmitter
antennas are
being detected.
Multi
information
display
• The warning
indicator
flashes for 5
minutes.
• The outer
tone alarm
will not
sound.
42B-25
Warning
cancellation
conditions
(Cancels warning
operations when
one of the
conditions met)
5 minutes have
passed after the
push switch was
pressed ON and IG
knob is in "LOCK"
(OFF) position.
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."
TSB Revision
Illuminate −
s for 3
seconds.
3 seconds have
passed after the
TPMS warning light
is lit.
42B-26
Display
contents
a
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
Item
State
TPMS
warning
light
SERVICE
REQUIRED
AC610120AB
Multi
information
display
Warning
cancellation
conditions
(Cancels warning
operations when
one of the
conditions met)
Tire pressure alarm
Illuminates. Symbol and
The received
tire pressure
"LOW TIRE
value is under
PRESSURE" is
the alarm ON
displayed.
threshold value.
The received tire
pressure value is
over the alarm OFF
threshold value.
TPMS
ID not
failure
stored
warning
The TPMS
Flashes *
transmitter ID is
not registered in
the KOS-ECU.
ID is registered
normally.
LOW
TIRE PRESSURE
AC610119 AB
b
Warning operations
Defective
EEPROM
Abnormality of
data in the
EEPROM of the
KOS-ECU is
detected.
Symbol and
"SERVICE
REQUIRED" is
displayed.
Data in the
EEPROM of the
KOS-ECU is
checked to be
normal.
Problem in The signals from
TPMS
signal
reception transmitters
cannot be
received while
driving for about
20 minutes.
The signal from the
TPMS transmitter
that was warned is
received.
Defective
sensor
The sensor
failure signal is
received from
the TPMS
transmitter.
A normal signal is
received from the
TPMS transmitter
that was warned.
The
battery
voltage of
the TPMS
transmitter
is low.
The reception
problem warning
is activated
because of the
low battery
voltage of the
TPMS
transmitter.
The signal of normal
battery voltage is
received from the
TPMS transmitter
that was warned.
Vehicle
speed
input
problem
The vehicle
speed is not
input.
The vehicle speed
is input.
Abnormal
vehicle
speed
value
The vehicle
speed value is
abnormal.
The normal vehicle
speed value is
received.
NOTE:
*
: Change to continuous illumination after flashing for
about 1 minute.
TSB Revision
42B-27
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
<Sound pattern 1>
<Sound pattern 2>
T7
T3
T3
T1
T4
T3
T4
T3
T4
T1
T2
T1 : 0.08 ± 0.01 seconds
T2 : 2.96 seconds
T5
T6
T5
T6
T5
T6
T5
T3 : 1.01 seconds
T4 : 0.55 seconds
T5 : 0.17 ± 0.01 seconds
T6 : 0.11 ± 0.01 seconds
T7 : 5.69 seconds
AC501053AC
TSB Revision
42B-28
KEYLESS OPERATION SYSTEM (KOS)
CUSTOMIZATION FUNCTION
CUSTOMIZATION FUNCTION
By operating the ETACS system or MMCS of scan
tool MB991958, the following functions can be programmed. The programmed information is held even
when the battery is disconnected.
Adjustment
Adjustment item
item (scan tool
MB991958
display)
Hazard answer
back
Adjustment of the
Lock:1, Unlock:2
number of keyless
hazard warning light Lock:1, Unlock:0
answer back
Lock:0, Unlock:2
flashes
Lock:2, Unlock:1
Dome light
Adjustment of
delay timer with interior light delay
door
shutdown time
Door unlock
mode
Auto door
unlock by P
position
Adjusting contents
(scan tool MB991958
display)
Door lock system
M2421000300203
Adjusting content
LOCK: Flashes once, UNLOCK: Flashes
twice (default)
LOCK: Flashes once, UNLOCK: No flash
LOCK: No flash, UNLOCK: Flash twice
LOCK: Flash twice, UNLOCK: Flash once
Lock:2, Unlock:0
LOCK: Flash twice, UNLOCK: No flash
Lock:0, Unlock:1
LOCK: No flash, UNLOCK: Flash once
Lock:0, Unlock:0
No function
0 sec
0 second (no delay shutdown time)
7.5 sec
7.5 seconds
15 sec
15 seconds
30 sec
30 seconds (default)
60 sec
60 seconds
120 sec
120 seconds
180 sec
180 seconds
All doors unlock
All the doors are unlocked when the
driver's side door is unlocked.
Dr door unlock
Only the driver's side door is unlocked
when the driver's side door is unlocked.
(default)
Auto door unlock by Disable
P position function Always enabled
<Vehicles with
TC-SST>
Duration of horn Horn sounding time Short
chirp
during horn answer Long
back
TSB Revision
No function (default)
Always with function
0.01 second (default)
0.02 second
KEYLESS OPERATION SYSTEM (KOS)
CUSTOMIZATION FUNCTION
42B-29
Adjustment
Adjustment item
item (scan tool
MB991958
display)
Adjusting contents
(scan tool MB991958
display)
Adjusting content
Horn chirp by
keyless
Horn chirp by
keyless entry
system <vehicles
without auto light>
Not sound horn
No horn answerback function
Lock any time
The horn sounds when the lock button of
keyless entry transmitter is pressed once.
W lock any time
The horn sounds when the lock button of
keyless entry transmitter is pressed twice.
(default)
Horn chirp by
keyless entry
system <vehicles
with auto light>
Not sound horn
No horn answerback function
Lock any time
The horn sounds when the lock button of
keyless entry transmitter is pressed once.
Lock/auto ON
During daytime, while the lighting switch is
in the AUTO position, the horn sounds
once when the lock is pressed once.
W lock any time
The horn sounds when the lock button of
keyless entry transmitter is pressed twice.
(default)
Not sound tone alarm
No function
At keyless
Sounds when the keyless entry system is
activated.
At F.A.S.T.
Sounds when KOS is activated (default).
At Both
Sounds when the keyless entry system or
KOS is activated.
30 sec
30 seconds (default)
60 sec
60 seconds
120 sec
120 seconds
180 sec
180 seconds
With/without panic
alarm function
Disable
No function
Enable
With function (default)
F.A.S.T. key out With/without KOS
of car
key exterior
detection function
Enable
No function
Disable
With function (default)
F.A.S.T. feature KOS function
adjustment
Both enable
All KOS functions are enabled (default).
DoorEntry enable
Only door entry function is enabled.
ENG strt enable
Only engine starting function is enabled.
Both disabled
All KOS functions are disabled.
0 sec
0 seconds
3 sec
3 seconds (default)
5 sec
5 seconds
Tone alarm
answer back
Adjusts the tone
alarm answer back
function
Timer lock timer Timer lock period
adjustment
Panic alarm
switch
F.A.S.T. unlock
disable time
Adjusts the door
unlock inhibition
period after door
lock is activated
TSB Revision
NOTES

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