Vehicle position icon wanders across the map when driving (does not follow a displayed road) or map or vehicle ICON spins
- Check the vehicle battery condition first (see 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 Map Matching (see MAP MATCHING ) before proceeding with the troubleshooting.
- 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 Diagnostic mode, and use Version (see VERSION ).
- Check for aftermarket metallic window tinting.
- Check any official Honda service website for more service information about the navigation system.
- Before troubleshooting, make sure you have the anti-theft codes for the audio-navigation unit.
- After troubleshooting, enter the anti-theft codes for the audio-navigation unit.
- Check the connectors for poor connections or loose terminals.
- Check the GPS icon on the navigation screen.
Is the GPS icon white or missing?
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-Diagnostic mode, and use the Yaw sensor diagnostic (see UNIT CHECK (QUICK CHECK)
) to check the yaw rate sensor.
Is the yaw rate sensor OK?
YES -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 diagnostic (see CAR STATUS
) to check the vehicle speed pulse (VSP) and the BACK signals.
Are the vehicle speed pulse and the BACK signals OK?
YES -The symptom may be a characteristic of the system. Check to see if the symptom 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 vehicle speed pulse, troubleshoot the vehicle speed signal circuit. BLU wire for open or short. If OK, swap a known-good PCM. If the problem or symptom goes away, update the PCM (see KNOCK SENSOR REPLACEMENT ), if it does not have the latest software or substitute a known-good PCM (see SUBSTITUTING THE PCM ).
- If the BACK signal is indicated ON (1), when in any shift lever position other than reverse, troubleshoot the back-up light switch circuit.
- 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 location.
Does the problem occur in the same location?
YES -The problem is in the database and should be considered a characteristic of the system. Report the problem according to the Navigation System Owner's Manual under Reporting Errors, and look for improvements in future databases.
NO -Replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).