John Deere 1865.19 – CCU (Chassis Control Unit): Incorrect CAN Bus Message, Information from OIC Control Software

The OIC (Operator Interface Control / Cab Module) is responsible for various cab and implement controls, including the hitch. When this code is active, it means the expected CAN bus communication from the OIC module is either missing, corrupted, or not available to the rest of the tractor's network.

• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 6090MC
• 6090RC
• 6100MC
• 6100RC
• 6110MC
• 6110RC
• 6110R through 6215R

1. 1

   Verify the overall integrity of the OIC control system, specifically focusing on the power supply and grounding to the cab module to ensure there are no intermittent power issues causing the module to drop off the CAN bus.

2. 2

   Test the CAN High and CAN Low communication lines between the CCU and the OIC module for opens, shorts to ground, or shorts to power.

3. 3

   Check if the OIC control software is up to date, as outdated software can cause communication dropouts.

4. 4

   Use a diagnostic tool to check for secondary OIC internal faults (such as EEPROM memory check failures at start-up), which would indicate a hardware failure inside the module itself.

1. 1

   Reset the module

   Perform a hard reset of the OIC control module following the manufacturer's procedure to see if the communication error clears.

2. 2

   Repair wiring

   If diagnostic checks reveal high resistance or physical damage in the CAN bus harness between the CCU and the cab, repair or replace the affected wiring and connectors.

3. 3

   Update software

   Install any available software updates for the OIC control module to address known internal or communication errors.

4. 4

   Replace the OIC module

   If the wiring is intact, power/ground is verified, and the module will not accept a software update or has an internal memory fault, replace the OIC module.