Symptom Troubleshooting

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

Vehicle position 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 Battery Test.
- 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 do the Map Matching before proceeding with the troubleshooting.
- Verify that the correct audio-navigation unit is installed for this model. Go into the System Diagnostic Mode, and use the Version.
- Check for aftermarket metallic window tinting.
- Check the connectors for poor connections or loose terminals.
- Check any official Honda service website for more service information about the navigation system.

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 troubleshooting Symptom Troubleshooting.

NO -

Go to step 2.

2. Check for the hard error code.

Are there any navigation DTCs indicated?

YES -

Troubleshoot the indicated navigation DTC(s).

NO -

Go to step 3.

3. Go into the System Diagnostic Mode, and use the Car Status diagnosis to check the BACK signal.

Does the BACK signal [0] when the shift lever position is P or N?

YES -

Go to step 8.

NO -

Go to step 4.

4. Turn the ignition switch to LOCK (0).

5. Disconnect audio-navigation unit connector C (28P).

6. Turn the ignition switch to ON (II).

7. Measure the voltage between audio-navigation unit connector C (28P) terminal No. 23 and body ground.





Is there battery voltage?

YES -

Repair a short to power in the wire between the audio-navigation unit and the driver's under-dash fuse/relay box.

NO -

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

8. Turn the ignition switch to LOCK (0).

9. 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 place.

Does the problem occur in the same place?

YES -

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

NO -

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