PLC 328012.31 – B84 Wheel Speed Sensor, Voltage Too High
PLC 328012.31 (PLC )
Code: 328012.31
Shortcode:
Description:
This diagnostic trouble code is triggered when the control unit detects that the voltage at the signal input for the wheel speed sensor (B84) is too high, indicating a short to a supply lead or an open circuit.
Reaction:
The wheel speed sensor may provide inaccurate readings or fail to operate, affecting systems like ABS or traction control that rely on accurate speed information.
Recommendations:
- Inspect Wiring and Connections:
- Check for any signs of damage, loose connections, or corrosion in the wiring and connections to the B84 wheel speed sensor. Repair or replace as needed.
- Test the Sensor:
- Ensure the wheel speed sensor is functioning correctly. Replace if necessary.
- Check for Shorts and Opens:
- Inspect the circuit for any potential shorts to a supply lead or open circuits and address the issues.
- Secure Connections:
- Make sure all connections are secure and clean.
Note:
Regular maintenance and checks can prevent issues related to high voltage in sensor circuits. Promptly addressing any signs of wear or damage can improve system reliability.