Reading and Clearing Diagnostic Trouble Codes

NAVIGATION: NAVIGATION SYSTEM: DTC CHECK / CLEAR

1. START DIAGNOSTIC MODE

HINT
* Illustrations may differ from the actual vehicle screen depending on the device settings and options. Therefore, some detailed areas may not be shown exactly the same as on the actual vehicle screen.
* If the system cannot enter diagnostic mode, inspect all AVC-LAN communication components and repair or replace problem parts AVC-LAN Circuit.
* After the ignition switch is turned to ON, check that the map is displayed before starting diagnostic mode. Otherwise, some items cannot be checked.

(a) There are 2 methods to start diagnostic mode. Start the mode by using either of them.

(b) Method 1





(1) Start the engine.

(2) While pressing and holding the "INFO" switch, operate the light control switch: off -> Turn on -> Turn off -> Turn on -> Turn off -> Turn on -> Turn off.

(3) Diagnostic mode starts and the "System Check Mode" screen will be displayed. Service inspection starts automatically and the result will be displayed.

(c) Method 2

(1) Start the engine.

(2) Press the "DISP" switch.





(3) From the display quality adjustment screen, touch the corners of the screen in the following order: Upper left -> Lower left -> Upper left -> Lower left -> Upper left -> Lower left.





(4) Diagnostic mode starts and the "System Menu" screen will be displayed.

2. FINISH DIAGNOSTIC MODE

(a) Turn the ignition switch off.

3. FAILURE DIAGNOSIS

(a) The "Failure Diagnosis" screen will be displayed by pressing the "Failure Diagnosis" switch on the "Service Menu" screen.





4. SYSTEM CHECK

(a) The "System Check Mode" screen will be displayed by pressing the "System Check" switch on the "Failure Diagnosis" screen.





5. CHECK DTC (CHECK USING SYSTEM CHECK MODE SCREEN)

HINT
* Refer to Diagnosis Display Detailed Description for further details on the "System Check Mode" screen.
* When "NCON" is displayed for all devices connected using the AVC-LAN, or when all device names are not displayed, check if there is a short circuit in the AVC-LAN or devices connected to the AVC-LAN. Repair or replace parts as necessary AVC-LAN Circuit.

(a) Read the system check result.





(1) If the check result is "EXCH" or "CHEK", touch the displayed check result to view the results on the "Unit Check Mode" screen and record them.

NOTICE:
A maximum of 6 DTCs can be displayed for history and present DTCs on the "Unit check mode" screen. Therefore, when 6 DTCs are displayed, troubleshoot those DTCs first and then check the "Unit check mode" screen again to see if any other DTCs are displayed.

HINT
* When all results are "OK", this means that no DTCs are present.
* When proceeding to view the results of another device, press the "Back" switch to return to the "System Check Mode" screen. Repeat the step above to view the results of other devices.

(2) Check the details of the DTC(s) Navigation System.

NOTICE:
The navigation system outputs DTCs for the following system. When DTCs other than the codes in Diagnostic Trouble Code Chart for the navigation system are output, refer to Diagnostic Trouble Code Chart for the system.





6. DTC CLEAR/RECHECK (CLEAR USING SYSTEM CHECK MODE SCREEN)

(a) Clear DTC





(1) Press the "Memory CLR" switch for 3 seconds.

(2) Confirm that the check results are cleared.

HINT
* To clear the DTC for a specific device, clear the DTC using the "Unit Check Mode" screen.
* When clearing a DTC using the "Unit Check Mode" screen, press the "Code CLR" switch for 3 seconds.

(b) Recheck





(1) Press the "Recheck" switch.

(2) Confirm that all diagnostic codes are "OK" when the check results are displayed. If a code other than "OK" is displayed, troubleshoot again.





HINT
When a DTC was cleared using the "Unit Check Mode" screen, press the "Back" switch to return to the "System Check Mode" screen and perform this operation.