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 perform Map matching before proceeding with the troubleshooting.
- Aftermarket metallic window tint or electronic devices located near the audio-navigation unit or GPS antenna can potentially interfere with the operation of the navigation system.
- Check any official Honda service website for more service information about the navigation system.
- Check the connectors for poor connections or loose terminals.

1. Test-drive the vehicle in an open area, and check if the vehicle position icon displays the actual vehicle position.

Does the vehicle position icon wanders across the map?

YES -

The failure is duplicated, go to step 2.

NO -

Intermittent failure, the system is OK at this time.

2. Check for the hard error code.

Are there any navigation DTCs indicated?

YES -

Go to indicated DTC's troubleshooting Navigation System DTC Troubleshooting Index.

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 [1] when the shift lever position is P or N?

YES -

Go to step 5.

NO -

Go to step 4.

4. Go into the System Diagnostic Mode, and use the Car Status diagnosis to check the BACK signal, then move the select lever (A/T) or the shift lever (M/T) to R.

Does the BACK signal change from [0] to [1] when the shift lever position is changed from P or N to R?

YES -

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

NO -

Go to step 9.

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

6. Disconnect audio-navigation unit connector D (20P).

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

8. Measure the voltage between audio-navigation unit connector D (20P) terminal No. 2 and body ground while select lever (A/T) or shift lever (M/T) in R.





Is there battery voltage?

YES -

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

NO -

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

9. Move the select lever (A/T) to P or N, or the shift lever (M/T) to N.

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

11. Disconnect audio-navigation unit connector D (20P).

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

13. Move the select lever (A/T) or the shift lever (M/T) to R.

14. Measure the voltage between audio-navigation unit connector D (20P) terminal No. 2 and body ground while select lever (A/T) or shift lever (M/T) in R.





Is there battery voltage?

YES -

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

NO -

Repair an open in the wire between the audio-navigation unit and the under-dash fuse/relay box.