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DIAGNOSIS SYSTEM (AUDIO UNIT)


Diagnosis Description


ON BOARD DIAGNOSIS

Description
- The trouble diagnosis function has a self-diagnosis mode for conducting trouble diagnosis automatically and a confirmation/adjustment mode for operating manually.
- Self-diagnosis mode performs the audio unit diagnosis and the connection diagnosis between each of the units that make up the system, and it indicates the results to the display.
- The confirmation/adjustment mode allows the technician to check, modify or adjust the vehicle signals and set values, as well as to monitor the system error records and system communication status. The checking, modifying or adjusting generally requires human intervention and judgment (the system cannot make judgment automatically).

On Board Diagnosis Item






STARTING PROCEDURE
1. Start the engine.
2. Turn the audio system OFF.





3. While pressing the number 1 button, turn the volume control dial clockwise or counterclockwise for 40 clicks or more. (When the self-diagnosis mode is started, a short beep will be heard.)
- Use the SCROLL and TUNE dial to go up and down the menu screen.
- Push the enter button to select an item on the menu screen.
- Push the iPOD MENU button to go back from screen to screen.





4. The trouble diagnosis initial screen is displayed, and then the items of "Self Diagnosis" and "Confirmation/Adjustment" can be selected.

SELF-DIAGNOSIS MODE





1. Start the self-diagnosis function and select "Self-diagnosis".
- Self-diagnosis subdivision screen is displayed, and the self-diagnosis mode starts.
- The bar graph visible on the center of the self-diagnosis subdivision screen indicates progress of the trouble diagnosis.





2. Diagnosis results are displayed after the self-diagnosis is completed. The unit names and the connection lines are color-coded according to the diagnostic results.





NOTE:
- Only the control unit (audio unit) is displayed in red.
- Replace audio unit if Self-Diagnosis did not run because of a control unit malfunction is indicated. The symptom is audio unit internal error.

- If multiple errors occur at the same time for a single unit, the screen switch colors are determined according to the following order of priority: red > gray.





- The comments of the self-diagnosis results can be viewed with a component in the diagnosis result screen.

SELF-DIAGNOSIS RESULTS
Check the applicable display at the following table, and then repair the malfunctioning parts.

NOTE:
Because the start condition of diagnosis function is a switch operation, the on board diagnosis function cannot be started up if any malfunction is detected in the AV communication circuit between audio unit and multifunction switch.

Self-diagnosis Result Chart






CONFIRMATION/ADJUSTMENT MODE
1. Start the diagnosis function and select "Confirmation/Adjustment". The confirmation/adjustment mode indicates where each item can be checked or adjusted.





2. Select each switch on the "Confirmation/Adjustment Mode" screen to display the relevant trouble diagnosis screen. Press the RETURN switch to return to the initial Confirmation/Adjustment Mode screen.

Display Diagnosis





The tint of the color bar indication is as per the following list if RGB image signal error is detected.






Vehicle Signals





A comparison check can be made of each actual vehicle signal and the signals recognized by the system.











Speaker Test





Select "SPEAKER TEST" to display the Speaker Testing screen.
Press "START and NEXT" to generate a test tone in a speaker.
Press "Start" to generate a test tone in the next speaker. Press "End" to stop the test tones.

NOTE:
The frequency of test tone emitted from each speaker is as follows.






Error History
The self-diagnosis results are judged depending on whether any error occurs from when "Self-diagnosis" is selected until the self-diagnosis results are displayed.
However, the diagnosis results are judged normal if an error has occurred before the ignition switch is turned
ON and then no error has occurred until the self-diagnosis start. Check the "Error Record" to detect any error that may have occurred before the self-diagnosis start because of this situation.
Count up method A
- The counter resets to 0 if an error occurs when IGN switch is turned ON. The counter increases by 1 if the condition is normal at the next IGN ON cycle.
- The counter upper limit is 39. Any counts exceeding 39 are ignored. The counter can be reset (no error record display) with the "Delete log" switch.
Count up method B
- The counter increases by 1 if an error occurs when IGN switch is ON. The counter will not decrease even if the condition is normal at the next IGN ON cycle.
- The counter upper limit is 50. Any counts exceeding 50 are ignored. The counter can be reset (no error record display) with the "Delete log" switch.










Error Item
Some error items may be displayed simultaneously according to the cause. If some error items are displayed simultaneously, the detection of the cause can be performed by the combination of display items.






Camera System
The function of "Adjust Offset of Rear View Camera" is available.
ADJUST OFFSET OF REAR VIEW CAMERA





Use this mode to adjust the guide line display position of the rearview monitor if necessary after removing the rear view monitor camera.





- Displays the communication status between audio unit (master unit) and each unit.
- The error counter displays "OK" if any malfunction was not detected in the past and displays "0" if a malfunction is detected. It increases by 1 if the condition is normal at the next ignition switch
ON cycle. The upper limit of the counter is 39.
- If it resets, the error counter is erased.






Delete Unit Connection Log





Deletes any unit connection records and error records from the audio unit memory. (Clear the records of the unit that has been removed.)

Initialize Settings





Eliminates the memory settings of audio system.