Throttle Position (TP) Sensor: P0122

The scan tool indicates Diagnostic Trouble Code (DTC) P0122: A low voltage problem in the Throttle Position (TP) sensor circuit.

The TP Sensor is a potentiometer. It is connected to the throttle valve shaft. As the throttle position changes, the throttle position sensor varies the voltage signal to the ECM/PCM.

Fig 1: Diagnostic Trouble Code (P0122) - Flowchart (1 Of 2)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: Diagnostic Trouble Code (P0122) - Flowchart (2 Of 2)

Courtesy of AMERICAN HONDA MOTOR CO., INC.