P2176

[Dooklear]

Hi all, I have a 2006 GMC Canyon, 3.5L. I keep getting the codes P2176, P2101, and P1516. All of these have to do with the TPS. So I took a gamble and replaced the TPS, which means replacing the throttle body. However, I can't get this truck out of "reduced power" mode. The battery voltage seems good, 12.35V. The Power train relay works well. I want to test the voltages at the TPS connector but can't find them online. Any suggestions? HELP!!! I should add that I have tried to clear the codes using an OBDII and the codes just pop up again when I turn the ignition to ON. Also tried clearing the codes by disconnecting the battery and the codes pop up immediately, even before I crank the engine. So my guess is it is an electrical problem.