How to Check Error History (Navigation DTCs)

The Error History feature is to record intermittent navigation issues that occur while the customer is using the system. Sometimes the customer complaint cannot be duplicated. The error history may record the information needed to diagnose the problem. To check the error history:

1. Start the engine.
2. Press and hold the MAP/GUIDE, the DEST, and the CANCEL buttons for 3 seconds.
3. When the Select Diagnosis Items menu appears, select the Self-Diagnosis Mode.
   Fig 1: Screen Display - Self-Diagnosis Mode With Detail Information

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4. When the audio-navigation unit has hard error codes, the Error History icon appears yellow when the Self-Diagnosis Mode (System Links) screen is displayed. When no hard error codes are stored, the icon appears gray. To view the errors with their navigation DTC, select the Error History icon.
   Fig 2: Screen Display - Self Diagnosis Mode (System Links)

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5. Select Hard Error in the Error History menu.
   NOTE: Soft Error is for factory use only.
   Fig 3: Screen Display - Error History

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6. The Hard Error screen displays the following information for each error:
   • The navigation DTC for the error.
   • A brief description of the navigation DTC.
   • The date and time when the error occurred.
     NOTE: The Save feature is for factory use only.
     Fig 4: Screen Display - Hard Error History

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7. Use the navigation DTC Troubleshooting table to troubleshoot the error. Select Return to exit the Error History main menu.