Entering Security Code The navigation system and audio unit have a coded theft protection circuit. Be sure to get the customer's anti-theft security codes number before;

- disconnecting the battery
- disconnecting the navigation unit 8P connector
- removing the No. 7 (10 A) fuse from the under-dash fuse/relay box

After service, reconnect power to the navigation unit, and turn the ignition switch ON (II). Enter the 4-digit anti-theft security code, then select ‘‘Done''.
When replacing the navigation unit or audio unit, be sure to give the customer the new anti-theft security code.