How to Register Secret Code
HOW TO REGISTER SECRET CODECAUTION:
- When adding the ignition key separately, or replacing the components by the steering lock cylinder of illustration [A] (the ignition key is simultaneously supplied) or the key set of illustration [B], register the encrypted code.Refer to chassis electrical, Encrypted Code Registration Criteria Table.
- When replacing the components by the door lock key cylinder of illustration [C] or the glove box lid lock cylinder of illustration [D], do not register the encrypted code with the bar code on the ignition key which is supplied to each lock cylinder simultaneously.
Required Special Tools:
- MB991958: M.U.T.-III Sub Assembly
- MB991824: Vehicle Communication Interface (V.C.I.)
- MB991910: M.U.T.-III Main harness A
Each individual secret code is registered inside the transmitter, and so it is necessary to resister these codes with the EEPROM inside the receiver in the following cases.
- When the transmitter or ETACS-ECU is replaced.
- If more transmitters are to be used.
- If it appears that a problem is occurring because of faulty registration of a code.
A maximum of four different codes can be stored in the EEPROM memory (four different transmitters can be used). When the code for the first transmitter is registered, the previously registered codes for all transmitters are cleared. Therefore, if you are using four transmitters or are adding more transmitters, the codes for all transmitters must be registered at the same time.