What causes the p2125 code on a car?

Many different components can cause the P2125 code: Open or short in the wiring harness. Failed throttle actuator control motor. Throttle position sensor that has failed. Failed pedal position sensor. Poor electrical connection.

What are the signs of a bad pedal position sensor?

Common signs of a faulty pedal position sensor include inconsistent engine response, reduced fuel efficiency, and the Check Engine Light coming on. 1. Engine response is inconsistent 2. Engine does not run efficiently 3. Check Engine Light comes on Average rating from 129,472 customers who received a Vehicle Engine Electrical Inspection.

How does the accelerator pedal position sensor work?

Accelerator Pedal Position Sensor. This is a component of the Drive-By-Wire system, which does away with the throttle cable. In a DBW system, the ECM receives an input from the APP sensor and then commands the appropriate throttle opening using a throttle actuator motor. See how this device works with this video.

Why does my ECM not work on p2125?

P2125 can have some rather serious symptoms. If the ECM can’t detect the signal from the throttle/pedal switch, it may not allow the throttle to work at all. If this occurs, the vehicle will not move at all when the gas pedal is depressed.

When did the p2125 throttle position sensor malfunction?

Jan

Where is the accelerator pedal sensor on the p2138?

You may also see a P2138 Accelerator pedal position (APP) Sensor 1-2 correlation trouble code. GM says this issue can be caused by water leaking into the instrument panel body harness connector. This connector is located in or near the left hand kick panel or inside the instrument panel, depending on the year and model.