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Home >> Mitsubishi >> 2013 >> Lancer SE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Keyless Operation System (Kos) - Lancer Evolution) >> General Information >> Construction Diagram >> Notes
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Construction Diagram: Notes

WARNING: This page is about a different variant/trim than selected.
Fig 1: Vehicle Construction Diagram (1 Of 2)
G00505442Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig 2: Vehicle Construction Diagram (2 Of 2)
G00505443Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Main components and functions 

PART DESCRIPTION

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
  • 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 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/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 drivers door outside handle.
Front passenger's door
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 Driver's side Converts the data output from KOS-ECU via wire into a signal, and sends it to the keyless operation key.
Front passenger's side
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.
Rear
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.
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 take 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.
Receiver antenna module Receives the keyless operation key ID data from the keyless operation key which is needed for the engine start, and then outputs 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.
(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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