PLC 328020.31 – Y15/2 Park Lock Solenoid Valve 2, Shorted to Ground or Shorted Circuit

PLC 328020.31 (PLC )

Code: 328020.31



This diagnostic trouble code is generated when the control unit detects that the current at the signal input to the park lock solenoid valve 2 (Y15/2) is too high or too low. This indicates that the circuit is shorted to ground or to positive.


The park lock solenoid valve may not operate correctly, potentially leading to issues with engaging or disengaging the park lock.


  • Inspect Wiring and Connections:
    • Check the wiring and connections to the Y15/2 park lock solenoid valve for any signs of damage, corrosion, or loose connections. Repair or replace as needed.
  • Check for Shorts:
    • Inspect the circuit for any shorts to ground or positive and address any issues found.
  • Test the Solenoid Valve:
    • Verify the operation of the Y15/2 park lock solenoid valve. Replace if faulty.
  • Secure Connections:
    • Ensure all connections are secure and free from contamination.


Proper maintenance of wiring and connections can prevent issues with short circuits, ensuring the reliable operation of the park lock solenoid valve.

Control Units: John Deere

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