DTC P04CD: General Description

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

The fuel fill door opener switch is a momentary switch used to manually open the fuel lid. Turning the fuel fill door opener switch on causes high (+B) to be input to the powertrain control module (PCM) and turning off the switch causes 0 V (open) to be input. The PCM detects a malfunction and stores a DTC when on signal is received continuously for the prescribed time or more as the input signal to the fuel fill door opener switch.