2006 Mazda 6 MazdaspeedFACTORY OEM SERVICE PROCEDURE

DTC P2405: Notes

DTC P2405 DETECTION CONDITION AND POSSIBLE CAUSES

DTC P2405 EVAP system leak detection pump sensor circuit low input
DETECTION CONDITION 
  • The PCM monitors the pump load current (EVAP line pressure), while the EVAP leak monitor is operating. If the current is lower than the specification while the PCM obtains the reference current value, the PCM determines that the EVAP system leak detection pump orifice 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 
  • EVAP system leak detection pump orifice has fallen off
  • EVAP system leak detection pump motor malfunction
  • PCM malfunction
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
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