P1120 Isuzu Rodeo Failure

Hello everyone, good night, my name is Mario. I ask you for help to solve the fault my car and it is the following: it has no strength in climbs, sometimes without stepping on the accelerator the car advances and enters the changes, it marks the P1120 fault code, checking on the internet tells me that it is the: Throttle Motor Position Sensor 1 - Circuit Malfunction. I would like it if someone has a diagram to check it or what you should expect. The data my car is:
Isuzu Rodeo 2001, 3.2 engine in 6 cylinders, automatic transmission. Thank you very much, I hope.