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Home >> Mazda >> 2022 >> CX-5 S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (On-Board Diagnostic - Engine Control System (VIN Y) (5 Of 7)) >> DTC P050A-00: Cold Start IAC System Performance Problem >> Details On DTCs

Details On DTCs

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DTC P050A-00: (PCM, VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE

DESCRIPTION Cold start IAC system performance problem
DETECTION CONDITION Determination conditions
  • The difference between the actual engine speed and the target engine speed is 100 rpm or more.
Preconditions
  • Engine speed: 500 rpm or more(1)
  • Engine coolant temperature: -10-45 °C {14-113 °F}(1)
  • Catalytic converter estimated temperature: 380 °C {716 °F} or less(1)
  • Vehicle speed: 0 km/h {0 mph}(1)
  • The following DTCs are not detected:
    • ECT sensor malfunction: P0116-00:, P0117-00:, P0118-00:
    • MAP sensor malfunction: P0107-00:, P0108-00:
    • BARO sensor malfunction: P2227-00:, P2228-00:, P2229-00:
      • Instrument cluster malfunction: P2610-00:
Malfunction determination period
  • 9 s period
Drive cycle
Self test type
  • CMDTC self test
Sensor used
  • CKP sensor
  • ECT sensor
FAIL-SAFE FUNCTION
  • Limits intake air amount
  • Stops high pressure fuel pump control
VEHICLE STATUS WHEN DTCs ARE OUTPUT
  • Illuminates check engine light.
POSSIBLE CAUSE
  • Air suction in intake air system
  • Drive-by-wire control system malfunction
  • Throttle valve malfunction
  • PCM malfunction
(1) Standard can be verified by displaying PIDs using M-MDS
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