How to Check Error History (Navigation DTCs)

The Error History feature is to record intermittent navigation issues that occur while using the system by setting navigation DTCs. 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, MENU, and CANCEL buttons for 3 seconds.
3. When the Select Diagnosis Items menu is displayed, select Self-Diagnosis Mode.
   Fig 1: Screen Display - Diagnosis Items Menu

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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 errors are stored, the icon appears gray. To view the errors with their navigation DTC codes, select the error history icon.
   Fig 2: Screen Display - Self-Diagnosis Mode (System Links)

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5. Select Hard Error
   NOTE: Soft errors are for factory use only.
   Fig 3: Screen Display - Error History

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Hardware Error History 

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:

     • To see additional errors, use the interface dial to select UP or DOWN icons (A).
     • Write down the DTCs, then select Clear to delete the error history. The Save feature is for factory use only.
       Fig 4: Screen Display - Hard Error

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7. Use the DTC Symptom Troubleshooting table to troubleshoot the error.
8. Clear the navigation DTCs.
9. Select Return to exit the error history.

Software Error (Soft Error) History 

Software errors are not available. They are for factory use only.