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 or vehicle ICON spins
NOTE:
- Check the vehicle battery condition first 12 Volt 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 accessories or other objects that can block the GPS signal. Always do the Map matching 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.
- Check for aftermarket metallic window tinting.
- Check any official Honda service website for more information about the navigation system.
- Check for connectors for poor connections or loose terminals.
1. Check the GPS icon on the navigation screen.
Is the GPS icon white or missing?
YES -
Go to GPS icon is white or not shown Symptom Troubleshooting.
NO -
Go to step 2.
2. Go into the System Diagnostic Mode, select the Detail Information & Settings, and use the Yaw Rate test to check the audio-navigation unit internal 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, select the Detail Information & Settings, and use the Car Status test to check the Reverse signal.
Does the Reverse signal change from [0] to [1] when the shift lever position is changed from P or N to R?
YES -
Go to step 4.
NO -
Troubleshoot the back-up light. If OK, go to step 6.
4. Go into the System Diagnostic Mode, select the Detail Information & Settings, and use the Car Status test to check the vehicle speed pulse.
5. With the help of an assistant drive the vehicle and watch the VSP signal.
Does the VSP signal change from [0] (stopped) to [1] (driving) as you drive?
YES -
The problem may be a characteristic of the system. Check to see if the problem occurs in the same place in a known-good vehicle. If it does, the problem could be in the database. Go to step 10.
NO -
Do the DTC 1306: Vehicle Speed Pulse troubleshooting 1306.
6. Turn the ignition switch to LOCK (0).
7. Disconnect audio-navigation unit connector D (20P).
8. Turn the ignition switch to ON (II).
9. Measure the voltage between audio-navigation unit connector D (20P) terminal No. 2 and body ground when the shift lever is in R position.
Is there battery voltage?
YES -
Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.
NO -
Repair an open or high resistance in the wire between the audio-navigation unit and the under-dash fuse/relay box.
10. Substitute a known-good audio-navigation unit 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 System Manual under Reporting Errors and look for improvements in future databases.
NO -
Replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.