Note: Before testing the throttle position sensor, adjust the base idle speed.
1. Connect the tester to the standard diagnostic connector.
2. If you do not use a tester for checking, connect a digital voltmeter between terminal "1" (ground) and terminal "3" (signal) of the throttle position sensor.
Caution: Do not disconnect the throttle position sensor connector.
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3. Turn the ignition switch to the "ON" position, do not start the engine. Make sure that the throttle position sensor signal voltage is within the nominal value range. If the test is performed using a tester, read the sensor signal voltage (select item No.14 of the Hi-Scan tester).
- Nominal value: 300-900 mV
4. If the measured voltage does not correspond to the nominal value, make sure that the resistance between the ground and the sensor signal terminal corresponds to the nominal value.
- Nominal value: 3.5-6.5 kOhm
5. If the measured resistance does not correspond to the nominal value, adjust the throttle position sensor.
6. Adjust the throttle position sensor.
- a) Loosen the throttle position sensor mounting screws.
- b) By turning the sensor body, adjust its position so that the output voltage of the sensor corresponds to the nominal value.
Note:
- As the sensor rotates clockwise, the output voltage of the sensor will increase.
- After replacing the sensor, tighten its mounting screws securely.
7. Turn the ignition key to the "OFF" position.
8. Disconnect the tester or digital voltmeter.