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DTC P2402 [LF]: Notes

DTC P2402 (LF) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P2402 EVAP system leak detection pump motor circuit high input
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 (Mode 2/Mode 12) is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • EVAP system leak detection pump connector or terminals malfunction
  • Open circuit in wiring harness between EVAP system leak detection pump terminal B and body ground
  • PCM connector or terminals malfunction
  • Short to power supply in wiring harness between EVAP system leak detection pump terminal D and PCM terminal 1U
  • EVAP system leak detection pump malfunction
  • PCM malfunction
G06150008Courtesy of MAZDA MOTORS CORP.
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