Throttle Position Sensor: Testing and Inspection

Fig. 15 Throttle Position Sensor Pin Location.:

1. Disconnect throttle position sensor connector.
2. Measure resistance between terminals 31 and 29, Fig. 15. Throttle position sensor should be replaced if resistance is not 4.25-8.25 ohms.
3. Measure resistance between terminals 31 and 30.
4. With throttle valve closed fully resistance should be 3.5-10.3 ohms.
5. With throttle valve opened fully resistance should be .3-6.3 ohms.
6. Measure resistance between terminals 32 and 29.
7. With throttle valve closed fully resistance should be 350 ohms or less.
8. With throttle valve opened more than 1.5° resistance should be 1M ohms.
9. Replace throttle position sensor if specifications are not met.
10. Perform TPS circuit test. (1.0L Engine)

Fig. 48 ECU System Diagnosis, Throttle Position Sensor Check (Part 1 Of 2):

Fig. 48 ECU System Diagnosis, Throttle Position Sensor Check (Part 2 Of 2):

10. Perform TPS circuit test. (1.3L Engine)

Fig. 59 ECU System Diagnosis, Throttle Position Sensor Check (Part 1 Of 3):

Fig. 59 ECU System Diagnosis, Throttle Position Sensor Check (Part 2 Of 3):

Fig. 59 ECU System Diagnosis, Throttle Position Sensor Check (Part 3 Of 3):