On Board Diagnosis Function

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

On Board Diagnosis Function


ON BOARD DIAGNOSIS ITEM

- The on board 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 diagnosis at the AV control unit, connections between each unit that composes the system, and connections between AV control unit and GPS antenna. It displays the results on 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 check, modify or adjust actions generally require human intervention and judgment (the system cannot judge automatically).











Starting procedure

1.Turn the power switch ON.
2.Turn the audio system off.





3.Press the "MAP" switch 3 times. Press the "PWR" switch 2
times. Press the "MAP" switch once.
NOTE:
If the on board self-diagnosis does not start, perform diagnosis using CONSULT. Refer to Scan Tool Testing and Procedures.





4.The initial trouble diagnosis screen displays two choices: "Self-Diagnosis" and "Confirmation/Adjustment".

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:
Control unit (AV control unit) is displayed in red.
- Replace AV control unit if "Self-Diagnosis did not run because of a control unit malfunction" is indicated.
The symptom is AV control unit internal error. Base Audio And Navigation.
- 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.





Detection Range of Self-diagnosis Mode
- The self-diagnosis mode allows the technician to diagnose the connection in the communication line between AV control unit and each unit and the internal operation of the AV control unit.
- 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 communication circuit between AV control unit and multifunction switch.

SELF-DIAGNOSIS RESULTS

Check the applicable display at the following table, and then repair the malfunctioning parts.
Only Unit Part Is Displayed In Red.





A Connecting Cable Between Units Is Displayed In Yellow.






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 "Back" switch to return to the initial Confirmation/Adjustment
Mode screen.





Display Diagnosis





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










Navigation
- The steering angle output value detected with the gyroscope is adjusted.





- During normal driving, distance error caused by tire wear and tire pressure change is automatically adjusted for by the automatic distance correction function. This function, on the other hand, is for immediate adjustment, in cases such as driving with tire chain fitted on tires.





- Displays the reception status of the GPS antenna connector.
- The XM NavTraffic subscription status can be checked.
Error location display
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.
The error record displays the time and place of the most recent occurrence of that error. However, take note of the following points.
- If there is a malfunction with the GPS antenna circuit board in the AV control unit, the correct date and time of occurrence may not be able to be displayed.
- Place of the error occurrence is represented by the position of the current location mark at the time an error occurred. If current location mark has deviated from the correct position, then the place of the error occurrence cannot be located correctly.
- The frequency of occurrence is displayed in a count up manner. The actual count up method differs depending on the error item.
Count up method A
- The counter resets to 0 if an error occurs when ignition switch is turned ON. The counter increases by 1 if the condition is normal at a next ignition 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 or CONSULT.










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










AV COMM Diagnosis





- Displays the communication status between AV control 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.
- The error counter is erased if "Reset" is pressed.






NOTE:
"???" indicates UNKWN
Hands-Free Phone, CARWINGS





The hands-free phone reception volume adjustment and microphone and speaker test functions are also available.
NOTE:
If voice cannot be output when the Voice Microphone Test is started, stop and restart the test again.

Camera





The four functions of "Correct Draw Line of Rear view Camera" is available.

Correct Draw Line of Rear View Camera





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

Clock Setting





The clock can be set.

XM





- Change Channel
- Any necessary channels required to receive traffic information from the satellite radio system can be set.
- Change Application ID
- Any application ID'-s required to receive traffic information from the satellite radio system can be set.
- Diag
- XM authentication diagnosis.

Delete Unit Connection Log





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

User Data Initialization





Initializes the AV control unit memory.

Version Information





Version information of the AV control unit is displayed.



Software Update





Software version of the AV control unit can be update.
For detail of the operation, refer to "SOFTWARE UPDATE (AV CONTROL UNIT) : Work Procedure".