John Deere 654.13 – Engine Control Unit (ECU): Injector Number 4 Calibration Code Error

The calibration string (trim code or QR code) programmed into the controller for the cylinder #4 fuel injector is missing, invalid, or does not match the expected format. The ECU requires this unique calibration data to precisely control the fuel delivery timing and quantity for that specific injector.

• 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
• 7630
• 7730
• 7830
• 7930
• 8310RT
• 8335RT
• 8360RT
• 9430
• 9530
• 9630
• 9540
• 9560
• 9580
• 9640
• 9660
• 9680
• 4930

1. 1

   Verify recent service history to see if the fuel injector in cylinder #4 was recently replaced without programming its specific trim code into the ECU.

2. 2

   Inspect the physical injector installed in cylinder #4 and record its serial number and calibration/trim code (QR code or alphanumeric string).

3. 3

   Inspect the injector wiring harness and solenoid connections for security and corrosion, as communication errors can sometimes disrupt ECU readings.

1. 1

   Connect diagnostic tool

   Connect a compatible diagnostic scan tool (such as John Deere Service ADVISOR or a Cojali Jaltest kit) to the machine's diagnostic port.

2. 2

   Turn key ON

   Turn the key to the ON position (engine off).

3. 3

   Navigate to Injector Calibration

   In the diagnostic software, navigate to the 'Tests and Calibrations' tab and select 'Injector Calibration' (or 'Injector Codes Calibration').

4. 4

   View programmed data

   The screen will display the current injector part number, serial number, and calibration code programmed for cylinder #4.

5. 5

   Compare data

   Compare the programmed data in the ECU to the physical trim code you recorded from the injector.

6. 6

   Select Change Information

   If the data does not match (or is blank), select the 'Change Information' tab.

7. 7

   Enter new calibration code

   Enter the correct injector serial number (usually the last eight digits) and the new calibration code exactly as printed on the injector.

8. 8

   Save changes

   Save the changes to the ECU.

9. 9

   Cycle power

   Cycle the machine's power (key off, then restart the engine) to verify that the active Diagnostic Trouble Code (DTC) clears and does not return.

10. 10

    Replace faulty injector

    If the injector itself is mechanically faulty, you must physically replace the fuel injector with a new unit first, and then perform this exact calibration programming process for the new injector.