ECU 000641.13 – Turbocharger Actuator Learned Value Error (VGT Actuator Calibration Error). John Deere System Advisory.
ECU 000641.13 (ECU 641.13)
Code: 000641.13
Shortcode: 641.13
Description:
This diagnostic trouble code, ECU 000641.13, is set when the turbocharger actuator determines that its learned value is incorrect, indicating a calibration failure of the VGT actuator. This error can lead to improper turbocharger regulation.
Reaction:
The ECU may limit turbocharger operation to prevent damage due to incorrect calibration values.
Recommendations:
- Recalibrate VGT Actuator: Perform the actuator learning procedure again using the appropriate diagnostic tools and following the manufacturer’s guidelines.
- Inspect Actuator and Connections: Ensure that the VGT actuator and its connections are free from mechanical obstructions and that the wiring is intact.
- Test Actuator Functionality: Verify that the actuator moves smoothly and responds correctly during the calibration process.
- Replace Faulty Actuator if Needed: If the actuator continues to fail calibration, consider replacing it with a new one.
- Reset ECU and Verify Calibration: After successful calibration, reset the ECU and test the system to confirm that the learned values are correct and the actuator operates properly.
Note:
Accurate calibration of the VGT actuator is crucial for maintaining efficient turbocharger operation and overall engine performance.