New Holland 9406: Loss Of All CAN Communication From UCM

The system has detected a loss of all CAN communication from the UCM. This indicates a failure in the communication link between the UCM and other components in the system.

1. 1

   The integrity of the CAN communication wiring

2. 2

   Connections to the UCM

3. 3

   Power supply to the UCM

1. 1

   Inspect

   Inspect the CAN communication wiring for damage, corrosion, or loose connections.

2. 2

   Test

   Test the connections to the UCM for proper continuity and voltage.

3. 3

   Verify

   Verify the power supply to the UCM is stable and within the required range.