PLC 328010.31 – B84 Wheel Speed Sensor, Voltage Too Low

PLC 328010.31 (PLC )

Code: 328010.31



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 low, indicating a potential short to ground in the circuit.


The affected wheel speed sensor may not function correctly, leading to issues with systems that rely on accurate speed readings, such as ABS or traction control.


  • Inspect Wiring and Connections:
    • Check the wiring and connections to the B84 wheel speed sensor for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  • Test the Sensor:
    • Test the wheel speed sensor to ensure it is functioning correctly. Replace if faulty.
  • Check for Shorts:
    • Inspect the circuit for any potential short to ground and address the issue.
  • Secure Connections:
    • Ensure all connections are secure and free from contamination.


Maintaining clean and secure connections is essential to ensure accurate sensor readings. Regular inspections can help identify and address potential issues before they lead to faults.

Control Units: John Deere

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