Jun 14, 2020 · The P2120 code indicates a problem with the Throttle/Pedal Position Sensor/Switch 'D' Circuit in the vehicle. This sensor is responsible for monitoring the position of the throttle pedal and sending this information to the engine control module (ECM).

The P2120 fault code in an automobile can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing. Other symptoms may include a decrease in engine power, a decrease in fuel efficiency, and difficulty accelerating.

Jun 14, 2020 · The APP sensor 1 sends a signal from the sensor to the ECM indicating the accelerator pedal position. The ECM actuates the throttle plates based on this information. If the ECM detects that the APP sensors are not within a predicted value from each other, DTC P2120 sets. P2120 Chevrolet Code - Accelerator Pedal Position Sensor 1 Circuit

P2120 is an OBD-II generic code for the engine control module (ECM) detecting a major failure in the throttle pedal position sensor circuit of a below or above specified voltage return from the sensor.

Potential causes of the P2120 code include: If you have access to a scan tool, with KOEO (Key on engine off) observe the TPS voltage. With throttle closed, voltage should be about .45 volts. It should gradually sweep upwards to approximately 4.5 to 5 volts as you depress the throttle.

Dec 19, 2024 · The P2120 code stands for “Throttle Position Sensor/Switch C Circuit Malfunction.” It’s set by the PCM when it detects a voltage outside the normal operating range. Some of the common causes of the code include a sticking throttle return spring, MAP or TPS connector issues, and a misrouted harness.

OBD-II Code P2120 is defined as a Throttle/Pedal Position Sensor/Switch 'D' Circuit. It means that the PCM detects the Accelerator Pedal Position Sensor is not changing appropriately...

Aug 12, 2020 · OBD II fault code P2120 is a generic trouble code that is defined as “Throttle/Pedal Position Sensor/Switch “D” Circuit”, and is set when the PCM (Powertrain Control Module) detects an abnormally high or low voltage in …

What does OBD-II fault code P2120 mean? OBD-II Code P2120 is defined as a Throttle/Pedal Position Sensor/Switch "D" Circuit. The electronic throttle control system (ETCS) controls the …

Jun 14, 2020 · Code P2120 Description The Accelerator Pedal Position (APP) sensor is an input to the Powertrain Control Module (PCM) and used to determine the amount of torque requested by the operator. There are 2 pedal position signals in the sensor.