Throttle Position Sensor: Adjustments

NOTE: When using scan tool, proceed to service data item 26 and observe the ON/OFF changes to the closed throttle position switch, instead of performing ohmmeter tests. If scan tool not available, follow the steps below.
1. Disconnect the connector of the throttle position sensor.




2. Connect an ohmmeter between terminal No. 3 (closed throttle position switch) and No. 4 (sensor ground) by using jumper wires.




3. Insert a feeler gauge with a thickness of 0.65 mm (0.0256 in.) between the fixed SAS and the throttle lever.




4. Loosen the throttle position sensor mounting bolt; then turn the throttle position sensor body fully counterclockwise.
5. In this condition, check for continuity between terminals No. 3 and No, 4.




6. Slowly turn the throttle position sensor clockwise until the point at which continuity between terminals No. 3 and No. 4 changes to non-continuity is found. Tighten the throttle position sensor installation bolt at that position.
7. Connect the connector of the throttle position sensor.




8. Connect the scan tool to the data link connector (white). If not using the scan tool, proceed as follows:
a. Disconnect the throttle position sensor connectors and connect the special tool, Test Harness Set, between the disconnected connectors.
b. Connect a digital voltmeter between the throttle position sensor terminal No. 2 (sensor output) and terminal No. 4 (sensor ground).
9. Turn the ignition switch ON (but do not start the engine).
10. heck the throttle position sensor output voltage.

Standard value: 400-1,000 mV

11. If there is a deviation from the standard value, check the throttle position sensor and the related harness.
12. Remove the feeler gauge.
13. Switch OFF the ignition switch.