Symptom Troubleshooting

Symptom Troubleshooting: Vehicle position icon constantly leaves road, moves erratically, or is displayed very far from actual vehicle position

Vehicle position icon constantly leaves road, moves erratically, or is displayed very far from actual vehicle position

NOTE:

- Check the vehicle battery condition first.

- 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 How To Troubleshoot The Navigation System (With Navigation) before proceeding with the troubleshooting.

- Make sure that the correct DVD color and version are installed.

- Inspect the DVD for dirt or damage.

- Check any official Honda service website for more service information about the navigation system.

- Check the GPS signal reception in an open area.

1. 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. Symptom Troubleshooting

NO - Go to step 2.


2. Go into the Self-Diagnostic mode, and use the Yaw Rate diagnosis Navigation System Diagnostic Mode (With Navigation) to check the 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 (With Navigation)


3. Go into the Diagnostic mode, and use the Car Status diagnosis Navigation System Diagnostic Mode (With Navigation) to check the vehicle speed pulse (VSP) signal.

Are the vehicle speed pulse signal 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. 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, replace the original PCM.


4. Substitute a known-good audio-navigation unit, Audio-Navigation Unit Removal/Installation (With Navigation) 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 under Reporting Errors and look for improvements in future databases.

NO - Replace the audio-navigation unit. Audio-Navigation Unit Removal/Installation (With Navigation)