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.