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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless Operation System (Kos) - With Diagnostics - Lancer >> General Information >> Construction Diagram >> < Lancer SPORTBACK >

< Lancer SPORTBACK >

Fig 1: Keyless Operation System Construction Diagram (Lancer Sportback; 1 Of 3)
G09627757Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig 2: Keyless Operation System Construction Diagram (Lancer Sportback; 2 Of 3)
G09627758Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig 3: Keyless Operation System Construction Diagram (Lancer Sportback; 3 Of 3)
G09627759Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
MAIN COMPONENTS AND FUNCTIONS DESCRIPTION

Parts name Functional description
KOS-ECU Controls KOS by using the following inputs/outputs and communications.
  • Input from the lock/unlock switch on each door, input from the push switch on the IG knob
  • Communications with ETACS-ECU, ECM, 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 and interior/exterior transmitter antennas
  • Wireless communication with the TPMS transmitter
  • 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 inside/outside transmission antenna assembly, certifies the keyless operation key ID code, calculates the encrypted code, and sends the reply data signal to KOS-ECU via the receiver antenna module. When the lock button, unlock button and trunk lid button < LANCER > on the keyless operation key is pressed, corresponding signal is sent to KOS-ECU via the receiver antenna module.
  • 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/unlock switch Driver's door
  • Locks all the doors when a driver carrying the keyless operation key presses the lock/unlock switch on the front door outside handle.
  • The lock/unlock switch on 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
Trunk lid opener switch < LANCER > 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.
Liftgate lock release handle < LANCER SPORTBACK > When the liftgate lock release handle is operated while the driver is carrying the keyless operation key, all the doors and the liftgate are unlocked.
Lock switch < LANCER SPORTBACK > Liftgate Locks all the doors and the liftgate when a driver carrying the keyless operation key presses the lock switch on the front door outside handle or on the liftgate lock release handle.
Outside transmission antenna assembly LH Converts the data output from KOS-ECU via wire into a signal, and sends it to the keyless operation key.
RH
Liftgate < LANCER SPORTBACK >
Inside transmission antenna assembly Front Converts the data output from KOS-ECU via wire into a signal, and sends it to the keyless operation key.
Rear
Antenna & tone alarm assembly < LANCER > Outside transmission antenna assembly (trunk lid) Converts the data output from KOS-ECU via wire into a signal, and sends it to the keyless operation key.
Outer tone alarm The outer tone alarm sounds when:
  • The doors are locked or unlocked by the door entry function.
  • The keyless operation key is brought out of the vehicle when the IG knob is in the "LOCK" (OFF) position and the push switch is in other than the ON position.
  • 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 on the keyless operation key is pressed from inside the car.
  • The lock switch on the keyless operation key is pressed when the door is ajar.
Outer tone alarm < LANCER SPORTBACK > The outer tone alarm sounds when:
  • The doors are locked or unlocked by the door entry function.
  • The keyless operation key is carried out of the vehicle when the IG knob is in the position other than the LOCK position, and the door is closed.
  • The lock switch of the front door outside handle is pressed when the IG knob is in the position other than the LOCK position.
  • The lock switch of the front door outside handle is pressed when the keyless operation key is inside the vehicle.
  • The lock switch of the front door outside handle is pressed when the door is not properly closed.
Receiver antenna module Receives the operation signals from the lock/unlock/trunk lid buttons and panic button on the keyless operation key as well as the tire pressure signal from the TPMS transmitter and keyless operation key ID data which is necessary for engine start. Then, sends the data to KOS-ECU. 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.
TPMS transmitter Measure tire pressure directly, then send radio frequency signal to receiver antenna module.
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.
(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 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.
(2) Illuminates for tire pressure warning. Flashes for about 1 minute and then continuously illuminated for TPMS malfunction warning.
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