User Password Setting Procedure

The teaching is started by ignition ON with a valid key and sending the user password by tool. The communication messages are described " Diagnostic tool display". After successful teaching the status of user password changes from " virgin" to " learnt".

The " learnt" user password can also be changed. This can be done if user password status is " learnt" and the tool sends for authorization of access either the old user password or PIN code (Only access PIN code is applied in MUT tool).

After correct authorization the BCM requests new " User Password". The status remains in " learnt" and the new user password will be valid.

If wrong user passwords or PIN code has been sent to BCM three times, the BCM will reject the request of password changing for one hour. Disconnecting the battery or other manipulation cannot reduce this time. After connecting the battery the timer starts again for one hour. When a valid TP is authenticated before tentatives' counter value reaches to limit, the tentative' counter is reset, but the timer counter (1 hour) is not affected.