SSU 001807.06 – B138 Steering Wheel Position Sensor, Current in Channel 1 Too High

SSU 001807.06 (SSU 1807.06)

Code: 001807.06

Shortcode: 1807.06


This diagnostic trouble code (DTC), SSU 001807.06, is generated when more than 20 mA flow to the steering wheel position sensor SID 1 for longer than 320 milliseconds. This indicates an overcurrent condition in the sensor’s circuit.


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


Inspect Power Supply:

  • Check the power supply to the steering wheel position sensor SID 1 to ensure proper current regulation.
  • Ensure that the current does not exceed 20 mA.

Verify Sensor Connections:

  • Inspect the wiring and connectors related to the steering wheel position sensor SID 1 for signs of damage, loose connections, or corrosion.
  • Ensure all connections are secure and free from contaminants.

Check for Short Circuit:

  • Use diagnostic tools to check for any short circuits in the power supply circuit.

Update Software:

  • Ensure that the software related to the steering system is up-to-date. Apply any available firmware updates to improve system performance and compatibility.

Replace Faulty Components:

  • If the steering wheel position sensor SID 1 or related components 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 steering system components can help prevent overcurrent conditions.
  • Ensuring the electrical system is properly regulated can avoid damage to sensitive components.

Control Units: John Deere

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