SSU 523824.05 – B138 Steering Wheel Position Sensor, Current in Channel 2 Too Low

SSU 523824.05 (SSU )

Code: 523824.05



This diagnostic trouble code (DTC), SSU 523824.05, is generated when less than 4 mA flow to the steering input device SID 2 for longer than 320 milliseconds. This indicates a low current condition in channel 2 of the steering wheel position sensor.


When this error is detected, the steering system may not function correctly, potentially leading to inaccurate steering inputs and compromised vehicle control.


Inspect Circuit for Open Connections:

  • Check the wiring and connectors of channel 2 for signs of an open circuit.
  • Use diagnostic tools to identify and locate any breaks or discontinuities in the circuit.

Verify Connections:

  • Inspect the connections related to SID 2 for damage, loose connections, or corrosion.
  • Ensure all connections are secure and free from contaminants.

Check Power Supply:

  • Verify that the power supply to channel 2 is providing adequate current.
  • Ensure that the current does not fall below 4 mA.

Update Software:

  • Ensure that the SSU software is up-to-date. Apply any available firmware updates to improve system performance and prevent low current issues.

Replace Faulty Components:

  • If any wiring, connectors, or SID 2 itself are found to be defective, replace them with new, genuine parts.

Consult Technical Support:

  • If the error persists after performing the above steps, consult technical support or the manufacturer for further assistance.


  • Regular maintenance and inspection of the electrical system can help prevent open circuits.
  • Ensuring the wiring and connectors are in good condition is crucial for reliable operation of the control unit and steering system.

Control Units: John Deere

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