Vehicle position icon constantly leaves road, moves erratically, or is displayed very far from actual vehicle position
- Check the vehicle battery condition first (see BATTERY TEST ).
- 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 aftermarket metallic window tinting or other objects that can block the GPS signal. Always do the Map Matching (see MAP MATCHING ) before proceeding with the troubleshooting.
- Make sure that the latest navigation software is installed.
- Check any official Honda service website for more service information about the navigation system.
- Check the GPS signal reception in an open area.
- Check for and resolve all CAN DTCs before troubleshooting the navigation system.
- Check the GPS icon on the navigation screen.
Is the GPS icon white?
YES -Go to 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 Self-Diagnosis Mode, and use the Yaw sensor test (see UNIT CHECK (QUICK CHECK) ) to check the yaw rate sensor.
- Go into the Self-Diagnosis Mode, and use the Car Status test (see CAR STATUS
) to check the vehicle speed pulse.
Are the yaw rate sensor and vehicle speed pulse OK?
YES -The condition may be normal. Check to see if the condition 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 yaw rate sensor, replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ). If the problem is the vehicle speed pulse, do the troubleshooting for DTC 1306: Vehicle Speed Pulse (see DTC 1306: VEHICLE SPEED PULSE ).
- Substitute a known-good audio-navigation unit (including the HDD) (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 -The problem is in the database. Report the problem according to the Navigation System Manual under Reporting Errors.
NO -Replace the original audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).