John Deere ICU002227.09 – ICU: SUP Message Missing

The system is reporting that a SUP message is missing. This may indicate a communication issue or a fault in the affected circuit. The fault code suggests checking fuse F23 and rebooting the vehicle. If the code persists, professional assistance is required.

1. 1

   Fuse F23

2. 2

   the affected circuit

1. 1

   Check

   Inspect fuse F23 for damage or failure.

2. 2

   Reboot

   Restart the vehicle to reset the system.

3. 3

   Monitor

   Observe if the fault code returns after rebooting.