LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mitsubishi >> 1987 >> Starion ESI-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Keyless Operation System (Kos) - Lancer Evolution) >> On-Vehicle Service >> Id Codes Registration Procedures >> Registration Using Scan Tool MB991958 (M.U.T.-III Sub Assembly) >> "Key & F.A.S.T. -Key Reg" Method
April 5, 2026: LEMON Manuals is launched! Read the announcement.

"Key & F.A.S.T. -Key Reg" Method

WARNING: This page is about a different car, the 2008 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
  1. When "Key & F.A.S.T. -Key Registration" screen is displayed, enter the password for the key registration and press the OK button. Then, "Executing!" is displayed and the key registration process starts.
    NOTE:
    • If the wrong password is entered consecutively 5 times, the password entry for the key registration will be disabled for 16 minutes.
    • The key registration cannot be cancelled during the operation.
      Fig 1: "Key & F.A.S.T. - Key Registration" - Screen Display
      G05384362Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  2. When the key registration is completed, "Completed." is displayed. To continue the key registration, press the OK button according to the screen instructions. Then "Executing!" is displayed again and the next registration process starts. To finish the key registration and start the keyless operation key registration, p22ress the cancel button. Then "Press OK button to start KOS key registration" is displayed.
    Fig 2: Key Registration - Screen Display
    G05384363Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    NOTE:
    • In order to register another key consecutively after registering the first key, the ignition switch must be turned to the ON position with the second key within 30 seconds after turning it to the "LOCK" (OFF) position with the first key. [When turning the ignition switch to the "ON" position or "LOCK" (OFF) position, be sure that the emergency key is connected to the keyless operation key. Do not use the emergency key independently.]
    • Up to four keys can be registered.
  3. Press the lock switch of the keyless operation key to be registered twice within 1 minute to allow the keyless operation key to be registered. Complete the registration within 1 minute and press the OK button. Then the keyless operation key registration ends.
    Fig 3: F.A.S.T. - Key Registration - Screen Display
    G05384364Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    NOTE:
    • Up to 4 keyless operation keys can be registered.
    • Register keyless operation keys inside the vehicle.
    • Register the keyless operation keys with the key released from scan tool display.
  4. Push the OK button after "F.A.S.T. -key Registration was finished." is displayed.
    Fig 4: F.A.S.T. - Key Registration - Screen Display
    G05384365Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  5. Check the number of the registered keys and keyless operation keys.
    NOTE: When the key cannot be registered using scan tool MB991958, refer to INSPECTION PROCEDURE 2 "THE KEYLESS OPERATION KEY CANNOT BE REGISTERED USING SCAN TOOL  .
    Fig 5: Scan Tool - Screen Display
    G05384366Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.