With SST-Engine Signal Monitor

INSPECTION




(Integral) Closed Throttle Position Switch
1. Verify that the throttle valve is closed throttle position.
2. Disconnect the throttle position sensor connection
3. Check for continuity between throttle position sensor connector terminals C and D by using an ohmmeter.
4. If no continuity, check adjustment of throttle position sensor assembly.




5. Insert a 0.50 mm (0.020 in) feeler gauge between the throttle adjusting screw (TAS) and the throttle lever. Verify that there is no continuity.
6. If there is continuity, adjust the throttle position sensor.




Throttle Position Sensor
Using SST (Engine Signal Monitor)
1. Remove the ECM.
2. Connect the SSTs to the ECM.
3. Verify that the throttle valve is closed throttle position.
4. Turn the ignition switch to ON.
5. Measure the ECM terminal 3F voltage by using a voltmeter.

Specification
Closed throttle position: 0.1-1.1 V
Wide open throttle: 2.8-4.5 V

NOTE: (Verify that the voltage increase is directly proportioned to the throttle valve opening angle.)

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