This error code, ECU 000651.05, is generated when the ECU detects an open circuit in the electronic injector for cylinder no. 1, indicating that the circuit resistance is too high. This condition can result in a failure to deliver fuel to the cylinder.
- John Deere error ECU codes
Error code ECU 000641.31 indicates that the Variable Geometry Turbocharger (VGT) actuator has detected its supply voltage is out of the specified high range. This could be due to a malfunctioning voltage regulator, issues in the electrical supply, or a fault within the actuator itself.
- John Deere error ECU codes
Error code ECU 000641.12 indicates that communication between the ECU and the turbocharger actuator controller has been lost, and the VGT actuator has detected an internal fault. This disruption can affect the actuator’s ability to regulate the turbocharger effectively.


