Picture Has Lines or Rolls

Picture has lines or rolls

NOTE:
- Always make sure that the correct DVD color and version are installed.
- Check any official Honda service website for more service information about the navigation system.
- Always compare the screen image to a known-good vehicle. If the screen looks the same, inform the client that it is a characteristic of the system.
- Always check the connectors for poor connections or loose terminals.
- Before troubleshooting, make sure you have the audio system and the navigation system anti-theft codes.

1. Check for electronic aftermarket accessories (possibly hidden) mounted near the navigation display or the navigation unit.

Are there any electronic accessories?

YES - Disable the accessories, and recheck.

NO - Go to step 2.

2. Start the vehicle and observe the navigation picture.

Is the picture scrolling horizontally (left to right or right to left)?

YES - Check for an open or short to ground in the C SIG wire from navigation unit connector A (20P) terminal No. 12 to navigation display connector A (20P) terminal No. 19. Also check for a short to ground between navigation display connector A (20P) terminal No. 19 and terminal No. 20.

NO - Go to step 3.

3. Go into the Diagnostic mode and use RGB Color test under Monitor Check.

Is the picture missing a red, green or blue color circle?

YES - Do the troubleshooting for the picture is missing a color or tone or is an odd color.

NO - Go to step 4.

4. Turn the ignition switch ON (II) and observe the navigation picture.

Did the image improve?

YES - Check for sources of electrical noise, such as poor battery connection, alternator, defective battery, aftermarket accessories or cell phone, poor pin fits at the display or control unit.

NO - Go to step 5.

5. Substitute a known-good navigation display, and recheck.

Is the picture OK?

YES - Replace the navigation display.

NO - Replace the navigation unit.