SSU 522451.01 – B139 Steering Angle Sensor, Voltage in Channel 2 Too Low
SSU 522451.01 (SSU )
Code: 522451.01
Shortcode:
Description:
This diagnostic trouble code (DTC), SSU 522451.01, is triggered when the voltage at the signal line of channel 2 of the wheel angle sensor (WAS) falls below 0.25 volts for longer than 320 milliseconds. This indicates a low voltage condition, potentially due to an open circuit in channel 2 of the wheel angle sensor.
Reaction:
When this error is detected, the steering system may not function correctly, potentially leading to inaccurate steering angle readings and compromised vehicle control.
Recommendations:
Inspect Power Supply:
- Check the power supply to channel 2 of the wheel angle sensor (WAS) for proper voltage regulation.
- Ensure that the voltage does not fall below 0.25 volts.
Verify Sensor Connections:
- Inspect the wiring and connectors related to channel 2 of the wheel angle sensor 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 wheel angle sensor or related components in channel 2 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.