| Components |

| 1. Front wheel speed sensor | 2. Front wheel speed sensor cable |
Failure Diagnosis1.In principle, ESP and TCS controls are prohibited in case of ABS failure.2.When ESP or TCS fails, only the failed system control is prohibited.
Removal1.Loosen the wheel nuts slightly.Raise the vehicle, and make sure it is securely supported.2.Remove the front wheel and tire (A) from the front hub.
Inspection1.Turn the ignition switch OFF.2.Disconnect the mode control actuator connector.3.Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4.Verify that the mode control actuator operates to the vent mode when connected in reverse.
Inspection1.Turn the ignition switch OFF.2.Disconnect the intake actuator connector.3.Verify that the intake actuator operates to the fresh position when connecting 12V to terminal 3 and grounding terminal 4.Verify that the intake actuator operates to the recirculation position when connected in reverse.