Throttle Position Sensor: Testing and Inspection

INSPECTION
Closed throttle position sensor
1. Turn the ignition switch OFF and the throttle valve closed throttle position.
2. Disconnect the throttle position sensor connector.




3. Check continuity between throttle position sensor terminals C and D.




4. If not as specified, adjust the throttle position sensor.




5. Insert a feeler gauge 0.4 mm ( 0.016 in ) between the stopper and the throttle lever.
6. Verify that there is no continuity between the throttle position sensor terminals C and D.
7. If continuity, adjust the throttle position sensor.

Variable resistor
1. Remove the ECM (Engine Control Module).




2. Connect the SSTs (Special Service Tool) (Engine Signal Monitor and Adapter Harness) to the ECM.
3. Set the SST (Engine Signal Monitor) to position 2M.
4. Turn the ignition switch to ON.
5. Rotate the throttle link by hand and verify that voltage is within the specification.




6. If not as specified, adjust the throttle position sensor.