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Home >> Mazda >> 2016 >> CX-9 Signature >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic (3 Of 4) >> DTC P2227-00: BARO Sensor Circuit Range/Performance Problem >> Notes
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DTC P2227-00: BARO Sensor Circuit Range/Performance Problem: Notes

DTC P2227-00: BARO sensor circuit range/performance problem
DETECTION CONDITION 
  • The condition has continued for 2 s  in which difference in barometric pressure and manifold absolute pressure is 30 kPa {0.31 kgf/cm 2  , 4.4 psi} or more,  difference in barometric pressure and turbocharger/supercharger boost pressure is 30 kPa {0.31 kgf/cm 2  , 4.4 psi} or more  and difference in barometric pressure and exhaust pressure is 30 kPa {0.31 kgf/cm 2  , 4.4 psi} or more. 

    MONITORING CONDITIONS 

    • Period vehicle being left: 6 h or more 
    • Battery voltage: 8 V or more 
    • Within 20 s  after engine start
    • The following DTCs are not detected:
      • MAP sensor: P0107-00:, P0108-00:
      • Boost pressure sensor: P0237-00:, P0238-00:
      • Exhaust gas pressure sensor: P0472-00:, P0473-00:
      • BARO sensor: P2228-00:, P2229-00:

    Diagnostic support note 

  • This is a continuous monitor (CCM).
  • The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA/Snapshot data is available.
  • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION 
  • Fixes the barometric pressure for the engine control at 101.32 kPa {1.0332 kgf/cm 2  , 14.695 psi}. 
POSSIBLE CAUSE 
  • BARO sensor (built-into PCM) malfunction
  • PCM malfunction
SYSTEM WIRING DIAGRAM 
  • Not applicable