Throttle Position (TP) Sensor
- Faults in TP sensor circuit should set DTC P0120. To test system, see DTC P0120 - THROTTLE POSITION (TP) SENSOR diagnostic procedures in the TESTS W/CODES article.
- To test TP sensor, disconnect TP sensor connector. TP sensor is mounted on side of throttle body. While opening and closing throttle, check resistance across specified wire terminals of TP sensor connector. See THROTTLE POSITION SENSOR RESISTANCE TEST table.
- If resistance is not as specified, check wiring harness. If no faults are found, adjust TP sensor. See ADJUSTMENTS article. If resistance is still not as specified after adjustment, replace TP sensor.
THROTTLE POSITION SENSOR RESISTANCE TEST
| Application | Wire Colors | K/Ohms |
|---|---|---|
| Sentra | Yellow & Black | 0.6-4.0 |