DTC P2175: General Description

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

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

When the throttle body blockage occurs, the air flow decreases compared to the normal condition at similar throttle position. From this characteristic, the powertrain control module (PCM) presumes a blockage of the throttle body. If the throttle body blockage rate reaches 100 % of the predetermined threshold, a malfunction is detected and a DTC is stored.