Diesel Data: Automotive Repair

Vehicle Position Icon Constantly Leaves Road, Moves Erratically, or Is Displayed Very Far From Actual Vehicle Position




Navigation System 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 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 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.

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

2. Check the GPS icon on the navigation screen.

Is the GPS icon white?

YES -

Go to GPS icon is white or not shown troubleshooting Symptom Troubleshooting.

NO -

Go to step 3.

3. Go into the System Diagnostic Mode, and use the Yaw Sensor test to check the audio-navigation unit internal yaw rate sensor.

Is the yaw rate sensor 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 -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.

4. Go into the System Diagnostic Mode, and use the Car Status test to check the VSP signal.

5. Drive the vehicle, and watch the VSP signal.

Does the VSP signal change from [0] (stopped) to [1] (moving) as you drive?

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 6.

NO -

Do the DTC 1306 (Vehicle Speed Pulse) troubleshooting 1306.

6. Substitute a known-good audio-navigation unit Audio-Navigation Unit Removal/Installation, and check to see if the problem occurs in the same place.

Does the problem occur in the same location each time?

YES -

Try to replicate the problem in a known-good vehicle. If the problem can be duplicated, the problem is in the database. Report the problem according to Reporting Errors.

NO -

Replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.