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

Reaction:

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.

Recommendations:

• 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.

Note:

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.