Symptom Troubleshooting

Symptom Troubleshooting: Picture has lines or rolls

Picture has lines or rolls

Diagnostic Test: Monitor Check

NOTE:

- Check the vehicle battery condition first.

- 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.

- Check the connectors for poor connections or loose terminals.

- 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 navigation screen settings for brightness, contrast, and black level, and check the color screen for map color and menu color.

- Before troubleshooting, make sure you have anti-theft codes for the audio system and the navigation system.

- After troubleshooting, enter the anti-theft codes for the audio system and the navigation system.

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

Are there any electronic accessories?
YES - Disable the accessories, and recheck.

NO - Go to step 2.


2. Start up the navigation screen.

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 B (32P) terminal No. 18 to navigation display unit 20P connector terminal No. 19. Also check for a short to ground between the navigation display unit 20P connector terminals No. 19 and No. 20.

NO - Go to step 3.


3. Go into the Detail Information & Settings select Monitor Check, and use RGB Color diagnostic under Monitor Check. Navigation System Diagnostic Mode

Is the picture missing a red, green or blue color?
YES - Do troubleshooting for the picture is missing a color or tone or is an odd color. Symptom Troubleshooting

NO - Go to step 4.


4. Turn the ignition switch to LOCK (0).

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

Is the picture OK?
YES - Check for loose connections, then replace the original navigation display unit. Service and Repair

NO - Check for loose connections and recheck. If a poor connection or loose terminal is found, replace the shielded harness. If no poor or loose terminals are found, substitute a known-good navigation unit Service and Repair, and recheck. If the problem is gone, replace the original navigation unit. Service and Repair