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DTC P2404 [LF]: Notes

DTC P2404 (LF) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P2404 EVAP system leak detection pump sense circuit problem
DETECTION CONDITION 
  • The PCM monitors pump load current (EVAP line pressure), while the evaporative leak monitor is operating. After obtaining the reference current value, if the time in which the pump load current reaches the reference current value is less than the specification, the PCM determines air filter has a malfunction.

Diagnostic support note 
  • This is an intermittent monitor (CCM).
  • The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
  • PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA (Mode 2/Mode 12) is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • EVAP hose bending
  • Air filter clogging
  • PCM malfunction
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