John Deere 000639.12: Vehicle CAN BUS Fault Radio (CRU)

A fault has been detected in the vehicle's CAN BUS system related to the radio (CRU). This indicates a communication issue within the affected circuit.

1. 1

   The connection and integrity of the CAN BUS wiring related to the radio (CRU)

2. 2

   The power supply and ground connections for the radio (CRU)

3. 3

   The functionality of the radio (CRU) itself

1. 1

   Inspect

   Check the CAN BUS wiring for the radio (CRU) for damage, corrosion, or loose connections.

2. 2

   Test

   Verify the power and ground supply to the radio (CRU) using a multimeter.

3. 3

   Diagnose

   Use a diagnostic tool to check for additional codes or communication errors related to the radio (CRU).