Symptom Troubleshooting

Navigation System Symptom Troubleshooting - Vehicle icon wanders across the map when driving (does not follow a displayed road) or map or vehicle ICON spins

Vehicle icon wanders across the map when driving (does not follow a displayed road) or map vehicle ICON spins

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- This is not the same condition as when driving off-road (or on a fire or logging road).
- This condition is caused by a loss of map matching from a bad sensor input. Check for aftermarket or other objects that can block the GPS signal. Always perform Map Matching Reading and Clearing Diagnostic Trouble Codes before proceeding with the troubleshooting.
- Always check for and resolve all CAN DTCs before troubleshooting the navigation system.
- Verify that the correct audio-navigation unit is installed for this model. Go into the System Diagnostic Mode, and use Version Navigation System Diagnostic Mode 1.
- Check for aftermarket metallic window tinting.
- Check any official Honda service web site for more service information about the navigation system.
- Before troubleshooting, make sure you have the anti-theft code.
- After troubleshooting, enter the anti-theft code.
- Check the connectors for poor connections or loose terminals.

1. Check the GPS icon on the navigation screen.

Is the GPS icon white or missing?

YES -

Do the GPS icon is white or not shown Symptom Troubleshooting.�

NO -

Go to step 2.

2. Go into the System Diagnostic mode, and use the Yaw Sensor diagnosis Navigation System Diagnostic Mode 1 to check the yaw rate sensor.

Is the yaw rate sensor OK?

YES -

Go to step 3.

NO -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.�

3. Go into the System Diagnostic Mode, and use the Car Status diagnosis Navigation System Diagnostic Mode 1 to check the vehicle speed pulse (VSP) and the BACK signals.

Are the vehicle speed pulse and the BACK signals OK?

YES -

The symptom may be a characteristic of the system. Check to see if the symptom occurs in the same place in a known-good vehicle. If it does, the problem could be in the database. Go to step 4.

NO -

- If the problem is the vehicle speed pulse, troubleshoot the vehicle speed signal circuit. BLU wire for open or short. If OK, swap a known-good ECM/PCM. If the problem or symptom goes away, update the ECM/PCM ECM/PCM Update, if it does not have the latest software, or substitute a known-good ECM/PCM Service and Repair.
- If the BACK signal is indicated ON (1), when in any shift lever position other than reverse, troubleshoot the back-up light switch circuit.�

4. Substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation, and check to see if the problem occurs in the same location.

Does the problem occur in the same location?

YES -

The problem is in the database and should be considered a characteristic of the system. Report the problem according to the Navigation System Manual under Reporting Errors, and look for improvements in future databases.�

NO -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.�