Diagnostic Test: Monitor Check
- Check the vehicle battery condition first.
- Always compare the screen image to a known-good vehicle. If the screen looks the same, inform the customer 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 code for the navigation system.
- After troubleshooting, enter the anti-theft code for the navigation system.
- Eject the navigation DVD.
Is the DVD the correct color (turquoise)?
YES - Go to step 2.
NO - Replace the DVD.
- Inspect the DVD read surface for damage or dirt (see HOW TO IDENTIFY NAVIGATION DVD VERSIONS, AND HOW TO INSPECT A DVD FOR DAMAGE
).
Is it damaged or dirty?
YES - Clean the DVD, or replace it if needed. Reinstall the DVD, and recheck.
NO - Go to step 3.
- Check for electronic aftermarket accessories (possibly hidden) mounted near the audio-navigation unit.
Are there any electronic accessories?
YES - Disable the accessories, and recheck.
NO - Go to step 4.
- Turn the ignition switch to ON (II).
- Go into the Diagnostic mode, and use the RGB Color test under Monitor Check (see FACTORY DIAGNOSTIC SCREEN IN LINE DIAG
).
Is the picture missing a red, green or blue color circle?
YES - Do the troubleshooting for picture is missing a color or tone or is an odd color (see PICTURE IS MISSING A COLOR OR TONE OR IS AN ODD COLOR ).
NO - Go to step 6.
- Turn the ignition switch to the ACCESSORY (I) position, and observe the navigation picture.
Did the lines or rolls on the screen go away?
YES - Check for sources of electrical noise, such as poor battery connection, alternator, defective battery, aftermarket accessories or cell phone, and poor connection in the audio-navigation unit.
NO - Replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).