DTC P2401 [L3]: Notes

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Notes
WARNING: This page is about a different car, the 2008 Mazda 5. However, it is still accessible from the selected car via links, so may be relevant.
DTC P2401 [L3] DETECTION CONDITIONS AND POSSIBLE CAUSES

DTC P2401 EVAP system leak detection pump motor circuit low
DETECTION CONDITION 
  • The PCM monitors pump load current (EVAP line pressure), while evaporative leak monitor or purge flow monitor is operating. If the pump load current is lower than specified, the PCM determines EVAP system leak detection pump motor circuit 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.
  • DTC is stored in PCM memory.
POSSIBLE CAUSE 
  • EVAP system leak detection pump malfunction
  • Open circuit between the main relay and EVAP system leak detection pump terminal A
  • Open circuit between the EVAP system leak detection pump terminal D and PCM terminal 1X
  • Short to ground circuit between the EVAP system leak detection pump terminal D and PCM terminal 1X
  • Poor connection at EVAP system leak detection pump or PCM connector
  • PCM malfunction
G05542993
RENDER: 1.0x

NO RELATED

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