General Information

Engine Control
P2122 Throttle/Pedal Position Sensor/Switch \'D\' Circuit Low Input - General Information

Component Location





General Description

The Electronic Throttle Control(ETC) system is made of the components throttle body, Throttle Position Sensor(TPS) 1&2 and Accelerator Position Sensor(APS)1&2.The APS is mounted in the accelerator pedal to detect the opening angle of the accelerator pedal. It has 2 sensors to detect the accelerator position and a malfunction of the accelerator position sensor. The PCM judges the current opening angle of the accelerator pedal from APS1&2, and the PCM controls the throttle motor based on these signals.

DTC Description

PCM sets DTC P2122 if the PCM detects output voltage lower than the possible range of a properly operating APS1.

DTC Detecting Condition





Diagnostic Circuit Diagram