ICC 523905.05 – Front PTO Driver Current Below Normal or Open Circuit

ICC 523905.05 (ICC )

Code: 523905.05



This code indicates that the current for the front PTO driver is below normal or there is an open circuit. This suggests that the front PTO coil current is too low, possibly due to a faulty coil, wiring issues, or a defective control module.


The front PTO may not engage or operate correctly, leading to operational issues with PTO-driven implements. A warning light or message may appear on the dashboard.


  • Inspect Front PTO Coil:
    • Check the front PTO coil for proper operation and continuity.
    • Replace the coil if it is defective.
  • Examine Wiring and Connectors:
    • Inspect the wiring harness and connectors for signs of damage, corrosion, or loose connections.
    • Repair or replace any damaged components.
  • Test Control Module:
    • Verify the functionality of the control module responsible for the front PTO.
    • Replace the control module if necessary.
  • Check for Open Circuits:
    • Use a multimeter to check for continuity in the front PTO circuit.
    • Repair any open circuits detected.


Regular inspection and maintenance of the PTO system can help prevent issues and ensure proper operation.

Control Units: John Deere

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