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1.Press "MAP" button and "SETTINGS" button at the same time for at least
3.5 seconds.
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2.The service mode will be initiated. Then "Service" screen will be displayed.
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If the operations below are done, the service mode will be terminated.
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- If "Back" button is selected on "Service" screen, the service mode
will terminate and then return to the previous screen.
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1.Select "hands free module" on "Service" screen.
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2."Hands Free Module" screen is displayed.
SPECIFICATION OF DISPLAY
ITEM
Displayed name
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Detail
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VOL
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The volume of the sound input to the microphone unit and output through
the speaker while the hands free ECU is in diagnosis mode. (The sound volume can be changed
by operating the multivision display.)
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Parts No
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The part number of the hands free ECU is displayed in 8 digits.
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H/W version
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The hardware version information of the hands free ECU is displayed
in 2 digits.
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S/W version
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The software version information of the hands free ECU is displayed
in 7 digits.
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HFM Self Check
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The hands free ECU state is displayed.
- "OK": Normal (There is no abnormality in the hands free ECU.)
- "NG": Abnormal (The hands free ECU may have a problem.)
| note |
If "NG" is displayed, turn the ignition switch to the "OFF" position once. Then, turn
the ignition switch to the "ON" position, and enter into the diagnosis mode. When the HFM Self
Check display is NG again, the hands free ECU is determined to be defective.
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HFM MIC Check
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Displays the communication condition of the hands free ECU and the
microphone unit.
- "OK": Normal (There is no short circuit or open circuit in the line between
the microphone unit and the hands free ECU.)
- "NG (Short)": This message is displayed when the line between the microphone unit
and the hands free ECU is shorted.
- "NG (Open)": (This message is displayed when there is an open circuit in the line
between the microphone unit and the hands free ECU.)
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DISPLAY BUTTON AND FUNCTION
Display button
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Detail
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S/W Update
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Execution button for software update of the hands free ECU (Displayed
only when the update is possible.)
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Error Code
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Error Code screen is displayed. (This button is displayed in grey when
"HFM Self Check" is "OK.")
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Unlock
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Forcibly unlocks the 4-digit passcode that was set by the security function.
(When the ECU is not locked by passcode, the "Unlock" button is displayed in grey.)
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Back
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Returns to "Service" screen.
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The software of the hands free ECU can be updated.
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2.Select "Yes." (When "No" is selected, the display returns to the "Hands Free Module" screen.)
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3.Input the 4-digit code for update. ("Enter" is displayed in grey until the 4-digit code
is input.)
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4.Update starts if the 4-digit code is normal.
| note |
- When the input code is normal, the speaker will not output the sound input to the
microphone unit until the display returns to the "Hands Free Module" screen.
- When the data rewriting operation is failed, the error screen is displayed.
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5.The "Reboot" screen is displayed when the update is completed successfully.
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6.After the hands free ECU is rebooted, the "Update successfully." screen is displayed.
When "OK" is selected, the display returns to the "Hands Free Module" screen.
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The error code is displayed to show the internal state of the ECU.
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1.Press "Error Code."
| note |
"Error Code" is displayed when the "HFM Self Check" is "NG."
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2.When "Back" is selected, the display returns to the "Hands Free Module" screen.
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Forcibly unlocks the 4-digit passcode that was set by the security function.
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2.When "Yes" is selected, "Lock mode canceled" will be displayed and the passcode lock will
be unlocked.
| note |
When "No" is selected, the display returns to the "Hands Free Module" screen.
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3.The display returns to the "Hands Free Module" screen after 4 seconds.
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