Test Drive Confirmation
- If using OBD-II scan tool, go to next step. If using Toyota scan tool, connect scan tool. See Figure. Switch scan tool to CHECK mode. Start and warm engine to normal operating temperature. Drive vehicle at 38-65 MPH with engine speed at 1600-3200 RPM for 3-5 minutes. If malfunction exists, MIL will illuminate.
- If using OBD-II scan tool, start and warm engine to normal operating temperature. Drive vehicle at 38-65 MPH with engine speed at 1600-3200 RPM for 3-5 minutes. Stop vehicle and turn ignition off. Repeat driving part of test. If malfunction exists, MIL will illuminate.
NOTE:
AFS is located in exhaust manifold. Sensor located behind catalytic converter is a typical heated oxygen sensor.