HOW TO REGISTER ENCRYPTED CODE


caution Because registering the encrypted codes is done after all previously-registered codes have been erased, you should keep all of the ignition keys that have already been registered accessible.
If the ignition key, immobilizer-ECU, engine-ECU <M/T> or engine-A/T-ECU <A/T> is replaced or an ignition key is added, encrypted codes of all the ignition keys must be registered. (A maximum of eight different ignition key can be registered). Moreover, when the immobilizer-ECU has been replaced, you will need to use M.U.T.-III to register the immobilizer-ECU and input the vehicle secret code and to register the password (secret code) that the owner specifies into the immobilizer-ECU. If an attempt is made to start the engine with an unregistered ignition key, cranking occurs, but fuel supply is cut off to disable the engine. In approximately.
note Engine-ECU <M/T> or engine-A/T-ECU <A/T> has an encrypted code for immobilizer-ECU, and the encrypted code is registered in the immobilizer-ECU and ignition key.

POINTS TO NOTE DURING OPERATION
If none of the functions can be used, check the diagnosis codes, and after carrying out any necessary repairs, repeat the operation. If an incorrect password is input ten times in a row, the immobilizer-ECU judges that an unauthorized operation is being attempted. Start-prevention mode will be set, and engine operation will stop and all special functions will be disabled. If the ignition switch is turned to "ON" position, "Unauthorized operation, start- prevention mode" will be cancelled.

KEY ID (ENCRYPTED CODE) REGISTRATION <M.U.T.-III>
All ignition keys can be registered with M.U.T.-III. Additional ignition keys can be registered with M.U.T.-III.

REGISTRATION WITH THE M.U.T.-III
caution To prevent damage to M.U.T.-III, always turn the ignition switch to "LOCK" (OFF) position before connecting or disconnecting M.U.T.-III.
note
  • Before registration, check that no diagnosis code is set. If a diagnosis code is set, resolve the problem beforehand.
  • Using the key ID register function will cause all key IDs that have been previously registered in the immobilizer-ECU to be erased. All keys need to be registered. Those which have been registered before should be on hand before using this function.
  • If registering more than one key, do not disconnect M.U.T.-III halfway through the registration process.
  • After registering key IDs, check that the engine can be started using all of the keys that have been registered. If the engine will not start, refer to Immobilizer System Troubleshooting .

1.Connect the M.U.T.-III to the diagnosis connector (16-pin).
2.Turn the ignition switch to "ON" position.

3.Select "System select" from the start-up screen.

4.Choose "IMMOBILIZER" from the "POWER TRAIN" tab.

5.Choose "Special Function" from "IMMOBILIZER" screen.

6.Choose "Key registration" from "Special Function" screen.

7.Enter the vehicle’s password (secret code) on the "Key registration" screen, and then click the check mark icon. Follow the prompts on the screen to insert key(s) into the ignition switch to begin key registration.

8.If the key ID was registered successfully, "Progress" indication will turn active (grey). Then the registration process completes. If the key ID failed to be registered, "In-Complete" indication will turn active (grey).
9.The number of keys currently registered will be displayed. To register an additional key, replace the ignition key with the next key to be registered within five seconds. Key ID registration screen will be displayed, then register another key.
note A maximum of eight different keys can be registered.
10.This completes the registration operation. Turn the ignition switch "LOCK" (OFF) and leave it off for approximately ten seconds.
11.Check that the engine can be started with each of the ignition keys.
12.Check that the immobilizer system diagnosis code and MPI system diagnosis code did not set.
13.If not diagnosis code is shown, terminate the M.U.T.-III.
14.Turn the ignition switch to "LOCK" (OFF) position.
15.Disconnect M.U.T.-III.

REGISTRATION OF ADDITIONAL KEYS WITH THE M.U.T.-III
Additional key(s) can be registered with the M.U.T.-III while keeping all existing key data.
caution To prevent damage to M.U.T.-III, always turn the ignition switch to "LOCK" (OFF) position before connecting or disconnecting M.U.T.-III.
note To register additional keys with the M.U.T.-III, no registered keys must be lost.

1.Connect M.U.T.-III to the 16-pin diagnosis connector.
2.Turn the ignition switch to "ON" position.
note Before registration, check that no diagnosis code is set. If a diagnosis code is set, resolve the problem beforehand.
3.Carry out steps 3 to 6 of the sub-section "Registration with M.U.T.-III."

4.Choose "Transponder ID addition" from "Special Function" screen.

5.Enter the vehicles password (secret code) on the "Transponder ID addition" screen, and then click the check mark icon.

6.If an additional registration is made successfully, the screen will ask if another key is registered or not. If the third ignition key is registered, remove the key, which has been registered. Then insert the third key within five seconds, and then turn it to the ON position.
7.Register the additional ignition key according to step 6 above. The number of the registered ignition keys are shown on "The number of registered key" screen.
note A maximum of eight different keys can be registered.
8.This completes the registration operation. Turn the ignition switch "LOCK" (OFF) and leave it off for approximately ten seconds.
9.Check that the engine can be started with each of the ignition keys.
10.Check that the immobilizer system diagnosis code and MPI system diagnosis code did not set.
11.If not diagnosis code is shown, terminate the M.U.T.-III.
12.Turn the ignition switch to "LOCK" (OFF) position.
13.Disconnect M.U.T.-III.