GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2002 🢒 Aztek - FWD 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Front Wheel Speed Sensor Replacement

Removal Procedure

    Object Number: 385475 Size: SH

    Important: The front wheel speed sensors and rings are integral with the hub and bearing assemblies.

    If a speed sensor or a ring needs replacement, replace the entire hub and bearing assembly. Do not service the harness pigtail individually because the harness pigtail is part of the sensor. Refer to Front Wheel Bearing and Hub Replacement in Front Suspension.

  1. Raise and support the vehicle on a suitable hoist. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Remove the front wheel speed sensor jumper harness electrical connector (1) from the front wheel speed sensor connector (3).

    4. Object Number: 188804 Size: SH
  4. Remove the hub and bearing assembly (2). Refer to Front Wheel Bearing and Hub Replacement in Front Suspension.

Installation Procedure

    Object Number: 188804 Size: SH
  1. Install the hub and bearing assembly (2) to the vehicle. Refer to Front Wheel Bearing and Hub Replacement in Front Suspension.

    2. Object Number: 385475 Size: SH
  2. Install the front wheel speed sensor jumper harness electrical connector (1) to front wheel speed sensor connector  (3).
  3. Install the wheel and tire assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  4. Lower the vehicle.
  5. Turn the ignition switch to the RUN position with the engine off.
  6. Perform the Diagnostic System Check - ABS .