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DTC P0454 00: Fuel Tank Pressure Sensor Intermittent Malfunction: Notes

DTC P0454:00 DETECTION CONDITIONS AND POSSIBLE CAUSES (SKYACTIV-G 2.0, SKYACTIV-G 2.5)

DTC P0454:00  Fuel tank pressure sensor intermittent malfunction 
DETECTION CONDITION 
  • Any one of the following conditions is met:
    • The difference between the currently detected fuel tank pressure sensor input voltage and the previously detected input voltage is large.
    • The input voltage of the fuel tank pressure sensor remains low or high.

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
  • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION  Not applicable
POSSIBLE CAUSE 
  • Wiring harness malfunction between PCM and fuel tank pressure sensor
  • Fuel tank pressure sensor malfunction
    • Intermittent open or short circuit in the fuel tank pressure sensor or fuel tank pressure sensor signal
  • PCM malfunction
SYSTEM WIRING DIAGRAM  Not applicable
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