Professional diagnositic tools

The way to Tell When the Throttle Position Sensor Is Bad? 1Apply the parking brake, shift the vehicle into park (automatic) or very first gear (manual), and turn off the engine Professional diagnositic tools. Turn on the ignition but don't re-start the engine.

2Connect an automotive scan tool towards the vehicle's diagnostic information port, usually located underneath the driver's side dashboard area.3Power on the scan tool and opt for "PCM" from the primary menu. Opt for "Live Data" from the PCM sub-menu. Select " Auto code scanner;TPS" from the Reside Data menu.4Look at the reading on the scan tool. When the accelerator isn't depressed it ought to read "0%."5Slowly press the accelerator towards the floor.

As it descends towards the floor the reading on the scan tool should really gradually enhance to study at "100%" once the pedal reaches the floor. In the event the scan tool display reads "0%" the entire time or will not respond for the movement with the pedal then the throttle position sensor is faulty and have to be replaced.