Enter the diagnosis mode according to the following steps:
1.Turn the Ignition switch to the "ACC" or "ON" position and switch off the radio and CD player.
2.Press the following buttons in that order within sixty seconds from step (1).
(1) [CH1] button.
(2) Fast-reverse/Track down button
(3) Fast-forward/Track up button
(4) [CH4] button.
NOTE:
∙When the "Power" button of the radio and CD player is pressed during the diagnosis mode, the diagnosis mode will be cancelled, thus switching off the radio and CD player. However, if the "Power" button is pressed while the hands free-ECU is being updated, the update will not be cancelled.
∙When an invalid button is pressed during diagnosis mode except the hands free-ECU update, the diagnosis mode will be cancelled, thus switching off the radio and CD player.
∙During the diagnosis mode, voice which is input through the microphone unit is played through a relevant loudspeaker.
3."HFM DIAG" is displayed.
(1) [SEL (Short press)] HFM UPDATE
(a) NO FILE returns to "HFM DIAG"
(b) CODE entry requested if a valid file is found
(C) Enter code [CH1] [CH2] [CH3] [CH4]
(1) CODE WRONG or
(2) UPDATE XX%
(d) Update result
(1) UPDATE FAIL Press [SEL] (Short press) to return to HFM DIAG
(2) UPDATE COMPLETE Press [SEL] (Short press) to return to HFM DIAG
(2) Diagnostics & Info list
[CH4] button advances forward
[CH3] button returns backward
(a) Microphone check result
(b) Part Number
(c) H/W Ver.
(d) S/W Ver.
(e) Self-check Result
(3) [Return] press
(a) UNLOCK Four-digit password, which has been set by the security function, will be erased.