CSM 523776.02 — Single Lever Control Transport Lock Switch Circuit Fault

CSM 523776.02 (CSM )

Code: 523776.02



This error code, CSM 523776.02, indicates a fault in the single lever control transport lock switch circuit due to conflicting outputs. This could be caused by issues with the switch mechanism, wiring problems, or sensor faults.


The function of the single lever control is disabled to prevent incorrect operations.


Inspect Transport Lock Switch:

  • Examine the single lever control transport lock switch for signs of malfunction or wear. Replace the switch if it is faulty.

Check Wiring and Connections:

  • Inspect the wiring and connections related to the transport lock switch for damage, loose connections, or corrosion. Secure and clean all connections to ensure proper operation.

Test Switch Functionality:

  • Use diagnostic tools to test the transport lock switch and ensure it is functioning correctly without conflicting outputs.

Reset and Test System:

  • After addressing the issue, reset the system and conduct tests to confirm the transport lock switch is operating correctly and the single lever control function is restored.


Regular inspections and maintenance of control switches and associated wiring can help prevent circuit faults. Prompt attention to any signs of malfunction ensures reliable system performance.

Control Units: John Deere

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