If you’ve run into issues with ICU 602 not responding after firmware update UPD 4.1, post your symptom + hardware revision below. I’ve seen two failure modes related to the CAN termination jumper – will elaborate in reply.
Mobitec ICU 602 User Manual – Repack + UPD (April 2026) mobitec icu 602 user manual repack upd
The front is IP-classified for dust and water resistance, making it suitable for tough vehicle environments. If you’ve run into issues with ICU 602
: Enter the destination code (typically a 3 or 4-digit number) to trigger the external LED or flip-dot signs to display the corresponding text. mobitec icu 602 user manual repack upd
: Every sign on the bus (front, side, back) must have a unique address. If a sign is not responding, check the address selector behind the sign's removable back panel.