Navigation System Symptom Troubleshooting - Picture has lines/rolls/other issues or is an odd color
Picture has lines/rolls/other issues or is an odd color
Diagnostic Test: Monitor Check
NOTE:
  • 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 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 .
  1. Start up 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 B (32P) terminal No. 18 to navigation display 20P connector terminal No. 19. Also check for a short to ground between navigation display 20P connector terminals No. 19 and No. 20.■
NO -
Go to Step 3 .
Is the picture missing a red, green or blue color?
YES -
NO -
Go to Step 4 .
  1. Turn the ignition switch to LOCK (0).
Is the picture OK?
YES -
Check for loose connections, then replace the original navigation display. ■
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 and recheck. If the problem is gone, replace the original navigation unit. ■