John Deere 1865.19 – CCU: Incorrect CAN Bus Message, Information from OIC Control Software.

This code indicates a data transfer problem on the machine's Controller Area Network (CAN Bus). Specifically, there is an intermittent, corrupted, or non-existent reception of messages that are supposed to be transmitted by the OIC (Operator Interface Control / Cab Module).

• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 6090MC
• 6100MC
• 6110MC
• 6090RC
• 6100RC
• 6110RC
• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 5085M
• 5100M
• 5115M

1. 1

   Inspect CAN Bus wiring harnesses and connectors between the OIC (Cab) and the CCU (Chassis) for damage, loose pins, or corrosion.

2. 2

   Use a multimeter or diagnostic tool to test for open circuits or short circuits in the CAN Bus lines.

3. 3

   Verify that the CAN Bus terminating resistors are properly installed and test within the correct resistance specifications (typically 60 ohms across the bus).

4. 4

   Check for sources of electrical interference and ensure proper grounding and shielding of the CAN Bus cables.

5. 5

   Check for accompanying codes (such as OIC 520870.02 - Control Software Internal Fault) which would indicate the cab module itself has failed and stopped broadcasting.

6. 6

   Use a diagnostic tool (like John Deere Service ADVISOR or Jaltest) to monitor live CAN Bus messages and verify if the CCU is receiving any data from the OIC.

1. 1

   Module Reset

   Perform a hard reset of the OIC and CCU control modules to clear the error and see if the communication fault is a temporary glitch.

2. 2

   Wiring Repair

   If open or short circuits were found during diagnostics, repair or replace the damaged sections of the CAN Bus communication harness between the cab and the chassis.

3. 3

   Resistor Replacement

   Replace any faulty CAN Bus terminating resistors.

4. 4

   Software Update

   Flash/install the latest software updates or patches for both the OIC and CCU control software, as outdated software can cause communication drops.

5. 5

   Module Replacement

   If the wiring, resistors, and software are all verified good, but the OIC is still failing to broadcast messages to the CCU, the OIC module must be replaced. If the CCU is failing to receive messages from multiple modules (not just the OIC), the CCU itself may require replacement.