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How to Troubleshoot the Navigation System

Anti-theft Feature
The navigation system and audio unit have a coded theft protection circuit. Make sure you have the anti-theft security code before:

- Disconnecting the battery.
- Disconnecting the navigation unit 8P connector.
- Removing the No. 15 (10 A) fuse from the under-hood fuse/relay box.

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