GM 19259629
ABS Sensor

Start the sensor replacement by lifting the vehicle and placing supports under it. Best method to replace the front Wheel Speed Sensor is by disconnecting its electrical connector first before removing the internally threaded bolt and pulling the sensor out of the Steering Knuckle. When the sensor fails to slide out, you must uninstall the brake rotor to reach the opposite side of the knuckle where you push the sensor out using a blunt punch or similar tool. Examine the sensor and Steering Knuckle after removal to check if the sensor's mounting pin stayed secure; if the pin broke off fetch the brake rotor if not already disassembled before using a blunt tool to extract it from the outboard side. Use sandpaper taped directly onto a screwdriver or a different tool to clean the sensor slot within the knuckle body. Keep the opening in its existing state. Place the new front Wheel Speed Sensor inside the Steering Knuckle then install its bolt and tighten it to 12 nm (107 inch lbs.). Attach the front Wheel Speed Sensor's electrical connection after you lower the vehicle and test the system with diagnostic system check - vehicle.

Remove the brake rotor and extract the broken pin using a blunt punch, then clean the hole with sandpaper wrapped around a screwdriver or another suitable tool, ensuring not to enlarge the hole.

If it does not slide out of the knuckle, remove the brake rotor and use a blunt punch or equivalent tool to push the sensor from the back side of the knuckle.

Place the front wheel speed sensor into the steering knuckle, install the retaining bolt, and tighten it to 12 Nm (107 inch lbs.).

Place the front wheel speed sensor into the steering knuckle, install the retaining bolt, and tighten it to 12 Nm (107 inch lbs.).

Disconnect the electrical connector from the front wheel speed sensor.