John Deere 000237.02 – ECU, CCU, ACU, ICU, or CRU: Module Tractor Serial Number Miss Match Detected / VIN Security Data Conflict

A mismatch has been detected between the tractor's serial number and the serial number stored in the rear chassis module (CCU). The CCU has detected that its stored serial number does not match the serial number being broadcast by one or more other control units on the CAN bus. This conflict can lead to the tractor operating in a limited function mode, which may include reduced engine power or speed.

• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 7210R
• 7230R
• 7250R
• 7270R
• 7290R
• 7310R
• 7715
• 7815
• 7630
• 7730
• 7830
• 7930
• 8235R
• 8260R
• 8285R
• 8310R
• 8335R
• 8360R
• 8310RT
• 8335RT
• 8360RT
• 8130
• 8230
• 8330
• 8430
• 8530
• 8245R
• 8270R
• 8295R
• 8320R
• 8345R
• 8370R
• 8400R
• 5430i
• 328D
• E260LC

1. 1

   Start the vehicle and let it idle for five minutes to see if the code clears on its own

2. 2

   Cycle the key switch to check if it resolves temporary communication issues

3. 3

   Check for other Diagnostic Trouble Codes (DTCs), particularly those related to CAN bus messages being missing

4. 4

   Verify, record, and clear codes using the onboard diagnostic display or John Deere Service ADVISOR™. After clearing, operate the machine to see if the code returns

5. 5

   Check for non-OEM or swapped controllers, aftermarket controllers, or low system voltage during an attempted start

1. 1

   Connect with John Deere Service ADVISOR™

   Connect John Deere Service ADVISOR™ to communicate with the tractor's control modules.

2. 2

   Identify Mismatched Controller

   Use Service ADVISOR™ to read the VIN stored in each control unit (ECU, CCU, ACU, etc.) to identify which module has the incorrect data.

3. 3

   Reprogram the Controller

   Reprogram the affected controller(s) with the correct software and VIN for the machine. This process involves downloading the correct payload files from John Deere's servers and installing them onto the controller.

4. 4

   Over-the-Air Reprogramming

   For some newer models with active internet connections and Generation 4 displays, software updates and reprogramming can be performed over the air. The system will notify the operator of available updates, which can then be downloaded and installed through the display.

5. 5

   Post-Programming Checks

   After reprogramming, clear all DTCs and operate the machine to ensure the fault code does not return.