Monitor Description

The accelerator pedal position sensor is mounted on the accelerator pedal and has 2 signal outputs (elements) that are used for engine control and detecting malfunctions in the sensor. When the difference between the voltage outputs of VPA and VPA2 deviates from the standard, the ECM determines that the accelerator pedal position sensor is malfunctioning. The ECM turns on the MIL and the DTC is set.