2007 Mazda 6 MazdaspeedFACTORY OEM SERVICE PROCEDURE

EVAP system malfunction judgment

  • The PCM calculates the stored air pump load current value and sends the results to the M-MDS as DTCs:
    Fig 1: EVAP System Test Description
    G04324271Courtesy of MAZDA MOTORS CORP.
DTC CONDITION

DTC No. Condition
P0442 EVAP control system leak detected (small leak)
P0446 Change over valve (COV) (EVAP system leak detection pump) stuck closed
P0455 EVAP control system leak detected (gross leak)
P0456 EVAP control system leak detected (very small leak)
P2401 EVAP system leak detection pump motor circuit low
P2402 EVAP system leak detection pump motor circuit high
P2404 EVAP system leak detection pump sensor circuit malfunction
P2405 EVAP system leak detection pump sensor circuit low input
P2407 EVAP system leak detection pump sensor circuit intermittent
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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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