What is a Throttle Position Sensor?
A throttle position sensor is a type of sensor that monitors the air intake of a vehicle’s engine. It’s usually mounted on the butterfly spindle (also known as butterfly shaft) of the throttle body.
From there, the sensor can directly and accurately monitor the position of the throttle.
The throttle body is the silver-colored component on which the throttle position sensor is attached. As you can see, there are cables running to and from the sensor to complete the sensor’s circuit. you can always diagnose both the sensor and its circuit with a scan tool.
Related article:
How to Use Autel AP200 to Reset Throttle Position for Vehicles
Autel MaxiAP AP200 is a Bluetooth OBD2 scanner, it does diagnostics and support many service functions like oil reset, EPB/BMS/SAS reset, DPF regeneration… Today I’m gonna show how to use it to reset the throttle position for a Dodge Nitro 2008, since the gas pedal is electronic.
Plug Autel AP200 into the OBD2 port, and turn ignition on.
Start the MaxiAP200 app to connect it via Bluetooth.
Here we go to
Service >> Throttle >> Dodge >> Manual selection >> 2008 >> KA-Nitro >> Hot function >> Learn electronic throttle control(ETC)(PCM) >> OK
It’ll start actually moving the gas pedal, just follow the prompts to operate:
* Press and hold down the accelerator pedal to the floor, the throttle must be held to the floor.
* Hold down the accelerator strongly to the floor.
* Release the accelerator pedal.
* Do not touch the accelerator pedal.
* Resetting ECU… please wait
Learn electronic throttle control (ETC) passed.
Let’s also do a test here, press
Electronic throttle control(ETC) throttle follower test(PCM) >> OK
Note: the engine must be stopped to carry out this test, to carry out this test, press the throttle pedal & the electronic throttle control(ETC) should follow.
It shows the voltage, like right now I’m at 1%, when I’m pressing the gas pedal, it’s going up to 77%.
Done!
Autel AP200 Diagnostic Tool is quite handy, easy and useful that every car owner should have one.