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DTC P2404: Notes

DTC P2404 DETECTION CONDITION AND POSSIBLE CAUSES

DTC P2404 EVAP system leak detection pump sensor circuit malfunction
DETECTION CONDITION 
  • The PCM monitors the pump load current (EVAP line pressure), while the EVAP leak monitor is operating. After obtaining the reference current value, If the pump load current is greater than or equal to the reference current value plus 2 mA  within the specified time, the PCM determines that the air filter has a malfunction.

Diagnostic support note 
  • This is a intermittent monitor (CCM).
  • 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 is available.
  • DTCs are stored in PCM memory.
POSSIBLE CAUSE 
  • Air filter clogging
  • EVAP hose bending
  • Damaged PCM
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