Component Tests and General Diagnostics
SYSTEM CHECK
Pressing the SYSTEM button on the Diagnosis Menu screen initiates a self-diagnostic test of the navigation system. Once this self-running test is complete, the SYSTEM CHECK screen appears. If everything is normal, this screen displays:
^ NAVI OK
^ CDROM OK
^ GPS OK
^ DISPLAY OK
Press the DIAG MENU button on this screen to return to the Diagnosis Menu screen.