Vehicle position icon constantly leaves road, moves erratically, or is displayed very far from actual vehicle position
- Check the vehicle battery condition first (see 12 VOLT BATTERY TEST ).
- Check any official Honda service website for more service information about the navigation system.
- Check that the GPS antenna is plugged in.
- 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 after market window tinting or other objects that can block the GPS signal. Always do the Map matching (see MAP MATCHING ) before proceeding with the troubleshooting.
- Check the GPS signal reception in an open area.
- Make sure that the correct DVD color and version are installed.
- Inspect the DVD for dirt or damage.
- Check the GPS icon on the navigation screen.
Is the GPS icon white?
YES -Do the troubleshooting for GPS icon is white or not shown (see GPS ICON IS WHITE OR NOT SHOWN ).
NO -Go to step 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 (see YAW RATE ).
Is the yaw rate sensor OK?
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 with the same navigation software version. If it does, the problem could be in the database. Go to step 3.
NO -Replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).
- Go into the Diagnostic mode, and use the Car Status diagnosis (see CAR STATUS ) to check the vehicle speed pulse (VSP) signal.
- 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 5.
NO -Do the DTC 1306: Vehicle Speed Pulse troubleshooting (see DTC 1306: VEHICLE SPEED PULSE ).
- Substitute a known-good audio-navigation unit (see 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 -Try to duplicate the problem in a known-good vehicle. If the problem can be duplicated, the problem is in the database. Report the problem according to the Navigation System Manual under Reporting Errors.
NO -Replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).