Fixing ABS light codes
A common way in checking your vehicle’s modern abs code light is by verifying the wheel speed sensors. These wheel speed sensors are usually located at the back of the brake rotor on vehicles using 4 wheel disc brakes. In contrast, other cars or trucks with rear-drum applications, the wheel speed sensors are anchored in the differential banjo housing or at the back of the drum housings. Regardless where the wheel sensors are mounted, these brake sensors are designed to record brake information about the wheel rpm in the brake computer memory. As soon as the brake pedal is pressed, it will activate the abs when the wheel speeds are not the same and if there is an indication of a wheel lockup, the abs computer will command the anti-lock mechanical system to adjust to make the wheel speeds the same for all 4 wheels.
Assuming your ABS light code is having difficulty to go out, and you need to try turn your ignition key several times and if the light does not go out, then it is time to check the abs circuits. The ABS light can be restored by turning the key on (engine not running) and depressing the gas pedal to the floor three times and the computer will reset the abs light code. On some vehicle models, the abs is bypassed by a jumper wire and the abs light code warning light will flash in sequence displaying the trouble codes. Normally, the common breakdown of the abs system is the hydraulic gas charged accumulator failure which cycles the turning on and off of various switches when the pressure pump overruns. For specific abs diagnosis of a particular vehicle, please contact ATS.
