Check Each Connection
If there are no problems in "CHECK THE OPERATION OF THE NAVIGATION" and "CHECK THE DVD-ROM" above, check the circuit of the navigation system. Refer to appropriate SYSTEM WIRING DIAGRAMS article .
If there are no problems in "CHECK THE OPERATION OF THE NAVIGATION" and "CHECK THE DVD-ROM" above, check the circuit of the navigation system. Refer to appropriate SYSTEM WIRING DIAGRAMS article .