SSU 001807.04 – B138 Steering Wheel Position Sensor, Supply Voltage in Channel 1 Too Low

SSU 001807.04 (SSU 1807.04)

Code: 001807.04

Shortcode: 1807.04

Description:

This diagnostic trouble code (DTC), SSU 001807.04, is triggered when the power supply for the steering wheel position sensor SID 1 drops below 4.75 volts for longer than 320 milliseconds. This indicates a low voltage condition, potentially due to an open circuit.

Reaction:

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

Recommendations:

Inspect Power Supply:

  • Check the power supply to the steering wheel position sensor SID 1 for proper voltage regulation.
  • Ensure that the voltage does not drop below 4.75 volts.

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 Open Circuit:

  • Use diagnostic tools to check for continuity in the power supply circuit to ensure there are no open connections.

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.

Note:

  • Regular maintenance and inspection of the steering system components can help prevent low voltage conditions.
  • Ensuring the electrical system is properly regulated can avoid interruptions in sensor operation.

Control Units: John Deere

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