GPM 521991.06 – Control Unit for Gear Shifting, Current Too High

GPM 521991.06 (GPM )

Code: 521991.06

Shortcode:

Description:

This diagnostic trouble code is generated if the control software detects that the overall current strength of the solenoid coils is too high. The control unit enters a cooling phase, making gear shifting impossible until 30 seconds have elapsed.

Reaction:

The gears cannot be shifted during the cooling phase, leading to a temporary halt in gear shifting operations.

Recommendations:

  • Inspect Electrical System:
    • Check the wiring and connections for any signs of damage, short circuits, or other issues that could cause high current. Repair or replace as necessary.
  • Monitor Current Levels:
    • Use a multimeter to monitor the current levels of the solenoid coils and ensure they are within the specified range.
  • Allow Cooling Time:
    • Allow the control unit to cool for at least 30 seconds before attempting to shift gears again.
  • Software Update:
    • Ensure that the control software is up-to-date. Install any available updates to address potential bugs or issues.

Note:

Regular maintenance and monitoring of the electrical system can help prevent issues related to high current in the solenoid coils. Proper cooling periods should be observed to avoid overheating.


Control Units: John Deere

John Deere Parts
John Deere Logo