2006 Mazda MX-5 Miata BaseFACTORY OEM SERVICE PROCEDURE

DTC P2402: Notes

DETECTION CONDITION AND POSSIBLE CAUSE (DTC P2402)

DTC P2402 EVAP system leak detection pump motor circuit high
DETECTION CONDITION 
  • The PCM monitors pump load current (EVAP line pressure), while evaporative leak monitor is operating. If the pump load current is higher than specified, the PCM determines EVAP system leak detection pump motor circuit has a malfunction.
Diagnostic support note 
  • This is a 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 is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • EVAP system leak detection pump malfunction
  • Short to power circuit between the EVAP system leak detection pump terminal D and PCM terminal 1U
  • PCM malfunction
G04317743Courtesy of MAZDA MOTORS CORP.
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