DTC P2401: Notes
DETECTION CONDITION AND POSSIBLE CAUSE (DTC P2401)
| 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 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).
- 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.
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| 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 1U
- Short to ground circuit between the EVAP system leak detection pump terminal D and PCM terminal 1U
- Poor connection at EVAP system leak detection pump or PCM connector
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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