SSU 522451.14 – B139 Wheel Angle Sensor, Voltages in Channel 1 and Channel 2 Not in Correct Ratio
SSU 522451.14 (SSU )
Code: 522451.14
Shortcode:
Description:
This diagnostic trouble code (DTC), SSU 522451.14, is triggered when the voltages in channel 1 and channel 2 of the wheel angle sensor (WAS) are not in the correct ratio. The signal voltage of sensor 2 should be half of the signal voltage of sensor 1. The DTC is triggered if the difference is 0.4 volts or more.
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:
Verify Sensor Calibration:
- Ensure that both channels of the wheel angle sensor (WAS) are correctly calibrated.
Inspect Sensor Connections:
- Inspect the wiring and connectors related to both channels of the wheel angle sensor for signs of damage, loose connections, or corrosion.
- Ensure all connections are secure and free from contaminants.
Check Voltage Ratio:
- Use diagnostic tools to verify that the voltage ratio between channel 1 and channel 2 meets the required specifications.
- Ensure that the signal voltage of sensor 2 is half of the signal voltage of sensor 1.
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 either channel of the wheel angle sensor 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 voltage ratio discrepancies.
- Ensuring both sensors are functioning correctly is crucial for accurate steering input and vehicle control.