ruskyl

The codes indicate (P1515 TPS detects the wrong value) and (P1516 that the TPS is out of range). I am trying to find out how to check the throttle body position sensor and the gas pedal position sensor before I guessed at which one needs replaced. I have seen conflicting information on the throttle body as to whether the throttle plate will open by hand or not. I've read in this forum that the throttle plate can be opened by hand if the key is out of the ignition. I also don't know if the throttle plate is supposed to open any time the gas pedal is depressed, engine stopped or running? I removed the accelerator pedal position sensor and checked both of the potentiometers, they range from about 3.5 ohms to .7 ohms. At this point I think the problem is definently in the throttle body or a bad conection, I would like to be able to check the throttle body out somehow before I replace it though. Anybody know how to check the throttle body?