Vehicle icon wanders across the map when driving (does not follow a displayed road) or map vehicle ICON spins
- Check the vehicle battery condition first (see 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 perform Map matching (see 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 Diagnostic mode and use Version (see VERSION ).
- Make sure that the correct DVD color and version are installed.
- Check for aftermarket metallic window tinting.
- Check any official Honda service website for more information about the navigation system.
- Before troubleshooting, make sure you have the anti-theft code for the audio-navigation unit.
- After troubleshooting, enter the anti-theft code for the audio-navigation unit.
- Check the DVD for damage or scratches.
- Check for connectors for poor connections or loose terminals.
- Check the GPS icon on the navigation screen.
Is the GPS icon white or missing?
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 Self-Diagnostic mode, and use the Yaw Rate diagnosis (see YAW RATE
) 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 diagnosis (see CAR STATUS ) 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.
- Go into the System Diagnostic Mode, select the Detail Information & Settings, and use the Car Status test (see CAR STATUS ) to check the vehicle speed pulse.
- 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 (see DTC 1306: VEHICLE SPEED PULSE ).
- Turn the ignition switch to LOCK (0).
- Disconnect audio-navigation unit connector C (8P).
- Turn the ignition switch to ON (II).
- Measure the voltage between audio-navigation unit connector C (8P) terminal No. 5 and body ground when the shift lever is in R position.Fig 1: Measuring Voltage Between Audio-Navigation Unit Connector C (8P) Terminal No. 5 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES -Replace the audio-navigation unit (see 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.
- 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 -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 audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).