Throttle Position Sensor: Testing and Inspection
THROTTLE POSITION SENSOR TESTINGUsing The Engine Signal Monitor
1. Remove the ECM.
2. Connect the Special Service Tools to the ECM.
3. Verify that the throttle valve is at the closed throttle position.
4. Turn the ignition switch to ON.
5. Measure the ECM terminal 3B voltage by using a voltmeter.
Specification
Closed throttle position: 0.1-1.1 V
Wide open throttle: 2.8 4.5 V
(Verify that the voltage increase is directly proportioned to the throttle valve opening angle.)
6. If not as specified, adjust the throttle position sensor.
Using Special Service Tool (NGS)
1. Connect the Special Service Tools New Generation Star (NGS) tester to the data link connector 2.
2. Verify that the throttle valve is at the closed throttle position.
3. Turn the ignition switch to ON.
4. Select the PID/DATA MONITOR AND RECORD function of the NGS.
5. Select "TP V" on the NGS display. NGS measures and shows the voltage.
Specification
Closed throttle position: 0.1-1.1 V
Wide open throttle: 2.8-4.5 V
(Verify that the voltage increase is directly proportioned to the throttle valve opening angle.)
6. If not as specified, adjust the throttle position sensor.