JCB P2043-87: CAN Bus Off Error from Head Unit

The system has detected a CAN bus off error originating from the head unit. This indicates a communication failure within the network, likely affecting the head unit's ability to communicate with other components.

1. 1

   The connection and integrity of the CAN bus wiring related to the head unit

2. 2

   The power supply and ground connections for the head unit

3. 3

   The functionality of the head unit itself

1. 1

   Inspect

   Check the CAN bus wiring for damage, loose connections, or corrosion near the head unit.

2. 2

   Test

   Verify the power and ground supply to the head unit using a multimeter.

3. 3

   Diagnose

   Use a diagnostic tool to confirm the status of the head unit and its communication with the CAN bus.