For most daily users, operation is straightforward. Here is the condensed "cheat sheet" for the cockpit: Powering On

The unit typically boots automatically when the vehicle’s master switch is engaged. The display will show a version number followed by the last active destination. Selecting a Destination

using the numeric keypad.

Check the 24V fuse in the vehicle's electrical locker. The ICU 602 is sensitive to voltage drops during engine cranking. 5. Technical Specifications for Installation

Check the green Phoenix connectors on the back. This usually means the ICU cannot "see" the exterior LED boards.

Navigate to Menu > Data Transfer > Load from USB .

To enter the configuration menu, you often need to hold the or 'F' key during the boot-up sequence. Updating Data (The "Repack" Method)