P0121

DTC P0121: Throttle Position Sensor Circuit Range / Performance

Wiring Diagram:

Wiring Diagram

DTC Detecting Condition And Trouble Area:

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure

WARNING:
- When performing a road test, select a place where there is no traffic or possibility of a traffic accident and very careful during testing to avoid occurrence of an accident.
- Road test should be carried out with 2 persons, a driver and a tester, on a level road.

NOTE:
Check to make sure that the following conditions are satisfied when using this "DTC Confirmation Procedure".
- Altitude (barometric pressure): 2500 m, 8202 ft or less (560 mmHg, 75 kPa or more)

1. With ignition switch turned OFF, connect scan tool.
2. Turn ON ignition switch and clear DTC using scan tool.
3. Start engine and warm up to normal operating temperature. (ECT approx. 80 - 100 °C, 176 - 212 °F)
4. Drive vehicle at 40 mph (60 km/h) or higher for 5 min. or more. (engine speed 2500 - 3000 r/min.)
5. Check DTC and pending DTC.

Step 1-4:

Step 4(Continued)-7:

Step 7(Continued)-11:

Step 12-13:

DTC Troubleshooting