Chevy throttle position sensor wiring diagram. This video demonstrates how to test a tps on a 1994 chevy c1500 with a 350 tbi. All of the information you need to diagnose the throttle position sensor problem or trouble code. P0120 tp sensor 1 circuit malfunction with electronic throttle body. Terminal c is the terminal that receives ground from your chevy trailblazer or gmc envoys fuel injection computer.
The throttle position sensor tps wiring diagram and info in this page apply to 1997 1999 ford 46l 54l vehiclesmodel years. Wire that feeds the tps with 5 volts dc from pin 90 of the pcm. Testing the throttle position sensors within the electronic throttle body simply involves testing the resistance between two terminals. Gm electronic throttle body circuit descriptions and testing tips.
Tools required are a multimeter and a small blade or a knife to slightly nick a wire to expose the wiring inside. Throttle position sensor tps wiring diagram part 1note. How to test the gm accelerator pedal position app sensor 2. Diagnostic manual comes with.
For our first test were going to test the resistance of terminal c and terminal g of tps 1. Here is a quick video on how to test a throttle position sensor tps with a multimeter. Resistance specifications of app sensor 1 app sensor 2. Complete step by step testing instructions.
Cleaning the gm electronic throttle body 48l 53l 60l. The wiring harness for the throttle position sensor is contained in the main wiring harness and is well protected except for the short part of the harness that leads from the main harness to the throttle position sensor its pigtail.