DTC Advanced Diagnostics: P2127, P2128: General Description

Courtesy of HONDA, U.S.A., INC.

Accelerator pedal position (APP) sensor A is a part of the electronic throttle control system. It is used to convert the position of the accelerator pedal into electrical signals. Based on these signals, the powertrain control module (PCM) controls the throttle actuator so that the throttle position agrees with the accelerator pedal position. The sensor outputs low signal voltage when the accelerator pedal is not pressed and high signal voltage at pressing the accelerator pedal. If the APP sensor output voltage is excessively high or low, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type