Wheel Speed Sensor Diagnostics

Wheel Speed Sensor Diagnostics

Understanding the criteria setting the codes and how the electrical circuit can cause that code is critical.

ABS systems don’t like to guess the speed of the vehicle, and if the ABS module doesn’t like the data it’s receiving from a wheel speed sensor, it’ll shut down and set a code. This can be frustrating for techs; the wheel speed sensors are some of the longest circuits in the vehicle. Also, since the ABS shuts down the system if there’s a problem, it can be challenging to replicate a symptom in the bay.

The critical part of any wheel speed sensor diagnostic procedure is to understand the criteria setting the codes and how the electrical circuit can cause that code.

Andrew Markel provides greater details in Dealer Service’s sister publication, Brake & Front End. Click HERE for the complete article.

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