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: Audio-Navigation Unit Screen Display - Select Diagnosis Items Menu

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4. When the audio-navigation unit has hard error codes stored, 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 DTC, select the error history icon.
   Fig 2: Audio-Navigation Unit 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: Audio-Navigation Unit Screen Display - Hard Error

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   Hardware Error History 

6. The Hard Error screen displays the following information for each error:
   • The DTC for the error
   • A brief description of the DTC code
   • The date and time when the error occurred.
   NOTE:

   • To see additional errors, use the joystick to select the UP or DOWN icons (A).
   • Select Clear to delete the error history. The Save feature is for factory use only.
   Fig 4: Audio-Navigation Unit Screen Display - Hard Error UP Or DOWN Icons

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

Software Error (Soft error) History 

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