DTC Check/Clear

HINT: 

• Illustrations may differ from the actual vehicle depending on the device settings and options. Therefore, some detailed areas may not be shown exactly the same as on the actual vehicle.
• After the ignition switch is turned to ON, check that the map is displayed before starting the diagnostic mode. Otherwise, some items cannot be checked.

1. START DIAGNOSTIC MODE 
   1. There are 2 methods to start diagnostic mode. Start the mode by using one of them.
   2. Method 1
      Fig 1: Identifying INFO Switch

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      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. The diagnostic mode starts and the "System Check Mode" screen will be displayed. Service inspection starts automatically and the result will be displayed.
   3. Method 2
      1. Start the engine.
      2. Press the "DISPLAY" switch.
         Fig 2: Identifying DISPLAY Switch

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      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.
         Fig 3: Identifying Display Quality Adjustment Screen

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      4. The diagnostic mode starts and the "System Check Mode" screen will be displayed. Service inspection starts automatically and the result will be displayed.
2. FINISH DIAGNOSTIC MODE 
   1. There are 2 methods to end diagnostic mode. Use one of them.
      1. Turn the ignition switch off.
      2. Press and hold the "DISPLAY" switch for 3 seconds.
3. DIAGNOSIS MENU 
   1. The "Diagnosis MENU" screen will be displayed by pressing the "Menu" switch on the "System Check Mode" screen.
      Fig 4: Identifying Diagnosis MENU Screen

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4. CHECK DTC 
   1. Read the system check result.
      Fig 5: Identifying Unit Check Mode Screen

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

         HINT: 

         • If all check results are "OK", go to communication DTC check.
         • If a device name is not known, its physical address is displayed.

         HINT: 

         When proceeding to view the results of another device, press the "Service" switch to return to the "System Check Mode" screen. Repeat this step.

   2. Read the communication diagnostic check result.
      Fig 6: Identifying LAN Monitor Screen

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      1. Return to the "System Check Mode" screen, and press the "LAN Mon" switch to enter the "LAN Monitor" screen.
      2. If the check result is "CHEK" or "Old", touch the displayed check result to view the results on the individual communication diagnostic screen and record them.
         Fig 7: Identifying LAN Monitor Screen

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         HINT: 

         • If all check results are "No Err", the system judges that no DTC exists.
         • The sub-code (relevant device) will be indicated by its physical address.
         • When proceeding to view the results of another device, press the "LAN Monitor" switch to return to the original "LAN Monitor" screen. Repeat this step.
5. DTC CLEAR/RECHECK 
   1. Clear the DTCs.
      Fig 8: Screen Display - Code CLR

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      1. Press the "Code CLR" switch for 3 seconds.
      2. The check results are cleared.
   2. Recheck
      Fig 9: Screen Display - Recheck

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      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.
         Fig 10: Screen Display - OK

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      3. Press the "LAN Mon" switch to change to the "LAN Monitor" screen.
         Fig 11: Screen Display - LAN Monitor

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      4. Confirm that all diagnostic codes are "No Err". If a code other than "No Err" is displayed, troubleshoot again.
         Fig 12: Screen Display - No Err

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