1. Disconnect the negative battery cable.
2. Lift up the vehicle.
3. Remove the front wheel (LH). (See WHEEL AND TIRE REMOVAL/INSTALLATION.)
4. Remove the splash shield.
5. Place a drain pan under the TSS sensor.
6. Disconnect the TSS sensor connector.
7. Remove the bolt.
8. Remove the TSS sensor.
9. Inspect the TSS sensor hole.
10. Inspect the O-ring for cuts or cracks. Install a new O-ring if necessary.
