Navigation System Symptom Troubleshooting - No picture is displayed
  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 -
Repair open in the wire between the navigation unit and body ground (G651). ■
  1. Reconnect navigation unit connector A (8P).
  1. Do the forced starting of the display.
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).