Circuit Description
WARNING: This page is about a different car, the 2006 Suzuki Reno and 2006 Suzuki Forenza. However, it is still accessible from the selected car via links, so may be relevant.
The Throttle Position (TP) sensor incorporates 2 TP sensors into one housing. TP sensor 1 and TP sensor 2 each have a 5 volt reference circuit supplied by the ECM. The ECM supplies each TP sensor with a low reference circuit. Each TP sensor supplies the ECM with a signal voltage that is proportional to the throttle plate position. The TP signal voltages are opposite from one another. TP sensor 1 is pulled up to reference voltage as the throttle plate is opened. The TP sensor 2 is pulled down to low reference as the throttle plate is opened.