John Deere 651.13 – Engine Control Unit (ECU): Injector Number 1 Calibration Code Error

The control unit has detected that the calibration data (QR code string) programmed into the system for the Cylinder #1 electronic fuel injector is invalid, incorrect, or does not match the expected format for that specific injector part number.

• 5085E
• 5090E
• 5090EL
• 5100E
• 5065M
• 5075M
• 5085M
• 5100M
• 5100MH
• 5100ML
• 5115ML
• 5095M
• 5095MH
• 5105M
• 5015ML
• 5090M
• 5115M
• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 7810
• 8130
• 8230
• 8330
• 8430
• 8530
• 9430
• 9530
• 9630
• 4930
• 4940
• R4038
• R4045
• 130G
• 160GLC
• 310SK
• 444K
• 544K
• 1070E
• 1170E
• 670G

1. 1

   Verify recent service history to see if Fuel Injector #1 or the Engine ECU was recently replaced without programming the new calibration code

2. 2

   Locate Cylinder #1 fuel injector on the engine block and write down the alphanumeric calibration code (QR string) printed on the injector body

3. 3

   Connect a diagnostic tool (such as John Deere Service ADVISOR) to read the calibration code currently stored in the ECU for Injector #1 and compare it to the physical code

1. 1

   Connect Diagnostic Equipment

   Plug the John Deere Service ADVISOR (or a compatible heavy-duty scanner) into the machine's diagnostic port.

2. 2

   Access ECU Programming

   Navigate to the Engine Control Unit (ECU) module and select the injector calibration/programming function.

3. 3

   Input the Correct Code

   Enter the exact calibration code/QR string found on the physical Cylinder #1 injector into the software.

4. 4

   Save and Clear

   Save the new configuration to the ECU. Clear the 000651.13 fault code from the system memory.

5. 5

   Test Run

   Cycle the ignition key, start the engine, and verify that the code does not return.

6. 6

   Replace Injector (If Necessary)

   If the calibration code is entered perfectly but the ECU still rejects it or the code returns, the injector's internal electronics have likely failed, and the injector itself must be replaced (followed by programming the new injector's code).