For 1990-2009 cars

## Front Wheel Speed Sensor Replacement 2WD

### Removal Procedure

Caution: Refer to Brake Dust Caution in the Preface section.

Caution: Refer to ABS Component Handling Caution in the Preface section.

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the wheel and tire. Refer to Tire and Wheel Removal and Installation .
3. Remove the brake caliper bracket bolts (1).

Notice: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak.

4. Without disconnecting the brake hose, remove the brake caliper and bracket (2) as an assembly and support with heavy mechanics wire or equivalent.

Important: Note the location of the retainers for the wheel speed sensor to the upper control arm and the body to assist installation and ensure correct harness routing.

5. Release the retainers securing the wheel speed sensor wiring harness to the upper control arm.
6. Disconnect the wheel speed sensor electrical connector.
7. Remove the speed sensor electrical connector from the body.
8. Remove the wheel speed sensor harness bracket bolt (1).

Important: Note that the wheel speed sensor harness is positioned between the wheel hub/bearing bolts at the narrowest span facing upward.

9. Using white or bright colored paint, mark the location of the speed sensor wiring harness to the steering knuckle.
10. Remove the wheel hub/bearing bolts (2).
11. Remove the brake rotor and the wheel hub/bearing as an assembly while routing the wheel speed sensor harness through the steering knuckle.

Important: Note that the wheel speed sensor harness is positioned at the narrowest span between the wheel hub/bearing bolt holes.

12. Using white or bright colored paint, mark the location of the wheel speed sensor harness to the wheel hub/bearing assembly.

Important: DO NOT lever or pry against the wheel speed sensor tone wheel under the wheel speed sensor. Lever against the wheel hub ONLY.

13. Using a suitable tool, pry or lever the wheel speed sensor off of the wheel hub/bearing housing.

Discard the wheel speed sensor.

### Installation Procedure

Important: Align the wheel speed sensor harness with the reference mark on the wheel hub/bearing assembly between the bolt holes narrowest span.

1. Position the wheel speed sensor on the wheel hub/bearing assembly.
2. Carefully press the wheel speed sensor squarely onto the wheel hub/bearing assembly until fully seated against the lip of the wheel hub/bearing assembly housing.

Important: Align the wheel speed sensor harness with the reference mark on the steering knuckle.

3. Install the wheel hub/bearing and brake rotor assembly to the steering knuckle with the wheel speed sensor harness positioned upward.

Notice: Refer to Fastener Notice in the Preface section.

4. Install the wheel hub/bearing bolts (2).

Ensure the wheel speed sensor harness is positioned upward.

Tighten
Tighten the bolts to 125 N·m (92 lb ft).

5. Install the wheel speed sensor harness bracket bolt (1).

Tighten
Tighten the bolt to 20 N·m (14 lb ft).

6. Install the wheel speed sensor harness retaining clips to the upper control arm.
7. Install the wheel speed sensor harness connector to the body.
8. Connect the wheel speed sensor harness electrical connector.
9. Install the brake caliper and bracket assembly (2) to the steering knuckle.
10. Install the brake caliper bracket bolts (1).

Tighten
Tighten the bolts to 175 N·m (129 lb ft).

11. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation .
12. Lower the vehicle.

## Front Wheel Speed Sensor Replacement 4WD

### Removal Procedure

Caution: Refer to Brake Dust Caution in the Preface section.

Caution: Refer to ABS Component Handling Caution in the Preface section.

1. Remove the steering knuckle. Refer to Steering Knuckle Replacement.
2. Remove the wheel speed sensor harness bracket bolt from the steering knuckle.

Important: Note that the wheel speed sensor harness is positioned between the wheel hub/bearing bolts at the narrowest span facing upward.

3. Using white or bright colored paint, mark the location of the wheel speed sensor harness to the steering knuckle.
4. Remove the wheel hub/bearing bolts (1).
5. Remove the brake rotor (2) and the wheel hub/bearing as an assembly from the steering knuckle (3) while routing the wheel speed sensor harness through the steering knuckle.

Important: Note that the wheel speed sensor harness is positioned at the narrowest span between the wheel hub/bearing bolt holes.

6. Using white or bright colored paint, mark the location of the wheel speed sensor harness to the wheel hub/bearing assembly.

Important: DO NOT lever or pry against the wheel speed sensor tone wheel under the wheel speed sensor. Lever against the wheel hub ONLY.

7. Using a suitable tool, pry or lever the wheel speed sensor off of the wheel hub/bearing housing.

Discard the wheel speed sensor.

### Installation Procedure

Important: Align the wheel speed sensor harness with the reference mark on the wheel hub/bearing assembly between the bolt holes narrowest span.

1. Position the wheel speed sensor on the wheel hub/bearing assembly.
2. Carefully press the wheel speed sensor squarely onto the wheel hub/bearing assembly until fully seated against the lip of the wheel hub/bearing assembly housing.

Notice: Refer to Fastener Notice in the Preface section.

Important: Align the wheel speed sensor harness with the reference mark on the steering knuckle.

3. Install the wheel hub/bearing and brake rotor assembly (2) to the steering knuckle (3) with the wheel speed sensor harness positioned upward.
4. Install the wheel hub/bearing bolts (1).

Ensure the wheel speed sensor harness is positioned upward.

Tighten
Tighten the bolts to 125 N·m (92 lb ft).

5. Install the wheel speed sensor harness bracket bolt.

Tighten
Tighten the bolt to 20 N·m (14 lb ft).

6. Install the steering knuckle assembly. Refer to Steering Knuckle Replacement.