CSC 523973.16 – Pressure Reduction, Lowest Position Not Reached, Fault. John Deere System Advisory.

CSC 523973.16 (CSC )

Code: 523973.16



This error code is triggered when a signal is sent to the solenoid valve to lower the cab suspension, but the cab does not lower to its fullest extent within 60 seconds. Possible causes include incorrect installation of the cab position sensor, a fault in the solenoid valve, or a problem in the hydraulic circuit of the cab suspension. This may also indicate mechanical component faults.


  • Limited or no function of the cab suspension.


  • Diagnose Related CSC Codes: Prioritize diagnosing any other present CSC codes to address underlying issues.
  • Inspect Cab Position Sensor Installation: Verify that the cab position sensor is installed correctly. Adjust or reinstall if necessary.
  • Test Solenoid Valve for Lowering: Check the solenoid valve responsible for lowering the cab suspension for faults or malfunctions. Replace the valve if it is found to be defective.
  • Evaluate Hydraulic Circuit: Inspect the hydraulic circuit for any issues such as leaks, blockages, or malfunctioning components. Repair or replace faulty parts as needed.
  • Check Mechanical Components: Examine the mechanical components of the cab suspension system for any faults that could prevent the cab from lowering completely. Address any identified issues.
  • Perform System Calibration: After resolving any issues, perform a full calibration of the cab suspension system to ensure all components operate correctly.


Proper installation and functioning of the cab position sensor and related components are essential for accurate suspension control. Regular inspections and timely repairs help maintain system reliability and performance.

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