Navigation System Symptom Troubleshooting - No picture is displayed
  1. Measure the voltage between body ground and navigation display connector A (14P) terminal No. 1 and No. 2 individually.
Is there battery voltage?
YES -
Replace the display unit.■
NO -
If the +B wire does not have voltage, repair open in the wire between the under-hood fuse relay box and the display unit 2P 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 20P connector.■