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Home >> Mazda >> 2006 >> 5 Sport, 2.3 L, Standard >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3) >> DTC P050A >> Notes
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DTC P050A: Notes

DTC P050A [L3] CHART

DTC P050A Cold start idle air control system performance
DETECTION CONDITION 
  • Actual Idle speed is lower than expected by 100 RPM  for 8.4 s  when target idle speed is above 0 RPM  at cold start or ignition retard value is above 8.9 °C {48 °F}. 
    NOTE:
    • If atmospheric pressure is less than 72.3 kPa {542 mmHg, 21.3 inHg}  or intake air temperature is below -10 °C {14 °F},  the PCM cancels diagnosis of P0506.

    • Diagnostic support note 

  • This is a continuous 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 the PCM memory.
POSSIBLE CAUSE 
  • Electronic throttle control system malfunction
  • Throttle valve stuck or blockage
  • Air suction in intake air system
  • PCM malfunction
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