Removal & Installation
Vehicles equipped with air bag systems (SRS) have components and wiring in the same area as the front speed sensor wiring harnesses. The air bag system connectors are yellow. Do not use electrical test equipment on these circuits. Do not damage the SRS wiring while working on other wiring or components. Failure to observe correct procedures may cause the air bag system to inflate unexpectedly or render the system totally inoperative.
- Raise and safely support the vehicle as necessary for access.
- Make certain the ignition switch is OFF .
- Detach the sensor harness connector.
- Beginning at the connector end, remove grommets, clips or retainers as necessary to free the harness. Take careful note of the placement and routing of the harness; it must be reinstalled in the exact original position.
Remove the bolt holding the speed sensor to its mounting, then remove the sensor. If it is stuck in place, gently tap on the side of the mounting flange with a hammer and small punch; do not tap on the sensor.
- Place the sensor in position; install the retaining bolts loosely. Route the harness correctly. Avoid twisting or crimping the harness; use the white line on the wires as a guide.
- Once the harness and sensor are correctly but loosely placed, tighten the sensor mounting bolts to the specifications shown in the accompanying illustrations.
- Working from the sensor end to the connector, install each clip, retainer, bracket or grommet holding the sensor harness. The harness must not be twisted.
- Attach the wiring connector.
- Use the ABS checker to check for proper signal from the wheel speed sensor.
- Carefully lower the vehicle to the ground.