Anti-lock braking systems are complex, and are typically diagnosed through professional computer scanning equipment, or manufacturer specific software. The technician will communicate with the ABS control module via computer, and view real-time data to determine what fault has been detected, and how the system is behaving. Once the technician identifies a suspected failure in the system, physical inspection and probing will take place to ensure an accurate diagnosis.
What to look out for with ABS system problems
Although it is possible to change minor components of the ABS system, such as a wheel speed sensor, it is not recommended to do so unless a specific diagnosis can be reached. There are many possible reasons for the ABS module to signal a fault, and personal scanning tools will only specify a condition, not a faulty part. For cost savings, only replace parts after a set of diagnostic tests have been conducted.
Can I diagnose the ABS system myself?
Certain parts of the ABS system can be DIY friendly, but diagnosing ABS and TCS trouble codes requires advanced knowledge, professional computerized diagnostic equipment, and manufacturer software. This entire system is best left to a professional technician, and is not advised for the DIY.
Anti-lock Brake System (ABS) Diagnosis Cost Estimates
The average cost for a Anti-lock Brake System (ABS) Diagnosis is between $116 and $170 but can vary from car to car.
