Navigation System Symptom Troubleshooting - No picture is displayed
No picture is displayed
Diagnostic Test: Self-Diagnosis Mode
NOTE:
  • Check if button has been pressed, causing the display to turn off (see owner's manual for more information).
  • Check the connectors for poor connections or loose terminals.
  • Before troubleshooting, make sure you have the anti-theft code for the navigation system.
  • 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.
  1. Check the No. 15 (10 A) fuse in the under-hood fuse/relay box and No. 18 (7.5 A) fuse in the driver's under-dash fuse/relay box, and reinstall the fuses if they are OK.
Are the fuses OK?
YES -
Go to Step 2 .
NO -
Replace the fuse and recheck.■
  1. Turn the ignition switch to ACCESSORY (I).
  1. Operate the radio and listen to the audio.
Can you hear the audio?
YES -
Go to Step 4 .
NO -
Check the ACC circuit or refer to the audio system troubleshooting.■
  1. Turn the ignition switch to ON (II).
  1. Measure the voltage between body ground and navigation unit connector A (8P) terminals No. 1 and No. 2 individually.
Is there battery voltage?
YES -
Go to Step 6 .
NO -
If the +B wire does not have voltage, repair an open in the wire between the under-hood fuse relay box and the navigation unit. If the ACC wire does not have voltage, repair open in the wire between the under-dash fuse/relay box and the navigation unit.■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect navigation unit connector A (8P).
  1. Check for continuity between navigation unit connector A (8P) terminal No. 4 and body ground.
Is there continuity?
YES -
Go to Step 9 .
NO -
  1. Reconnect navigation unit connector A (8P).
Is the diagnosis menu of the picture diagnosis displayed?
YES -
Go into Self-Diagnosis mode to check the system links.■
NO -
Go to Step 11 .
  1. Shield the display unit from the sun with your hand, and check that the display is back lit (only back light is ON.)
Can you see the back light?
YES -
Replace the navigation unit and retest. If the problem is still present, replace the navigation display unit. ■
NO -
Go to Step 12 .
  1. Turn the ignition switch to ON (II).
  1. Measure the voltage between body ground and navigation display unit 28P connector terminals No. 1 and No. 2 individually.
Is there battery voltage?
YES -
Go to Step 14 .
NO -
If the +B wire does not have voltage, repair open in the wire between the under-hood fuse/relay box and the navigation display unit 28P connector. If the ACC wire does not have voltage, repair open in the wire between the under-dash fuse/relay box and the navigation display unit 28P connector.■
  1. Measure the voltage between the navigation display unit 28P connector terminal No. 10 and body ground.
Is there less than 0.2 V?
YES -
Replace the navigation display unit.■
NO -