DTC Advanced Diagnostics: P2138: General Description

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

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

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

The diagnosis related to the electric throttle control system is done during the vehicle ON mode and OFF (LOCK) mode. The powertrain control module (PCM) opens and closes the throttle actuator to monitor the performance of the throttle body. If the difference between the accelerator pedal position (APP) sensor A output value and the APP sensor B output value is large, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type