OBD-II Trouble Code Description for P0124 GMC

Throttle/Pedal Position Sensor/Switch “A” Circuit Intermittent

What does this mean?

OBD2 Code P0124 GM definition:
The Throttle Position Sensor (TPS) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module (ECM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM. Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.

Symptoms

Possible sumptoms of OBD code P0124 GM
– Engine Light ON (or Service Engine Soon Warning Light)

Causes

Possible causes of OBD code P0124 GM
– Throttle position sensor harness is open or shorted – Throttle position sensor circuit poor electrical connection – Faulty throttle position sensor. The Error code is generally activated on detection of the following conditions: An intermittent voltage from the TP sensor is sent to ECM.

Possible Solutions