Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Mazda >> 2016 >> 3 Sport, 4D Hatchback, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (2 Of 4) >> DTC P050A-00: Cold Start IAC System Performance Problem >> Details On DTCs >> Notes

Details On DTCs: Notes

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: 0-45 ° C {32-113 °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 No. 1 malfunction: P0116:00, P0117:00, P0118:00
    • MAP sensor malfunction: P0069:00, P0107:00, P0108:00
    • BARO sensor malfunction: P2228:00, P2229:00
    • Instrument cluster malfunction: P2610:00
  • *1 : Value can be verified by displaying PIDs using M-MDS
Malfunction determination period
  • 9 s  period
Drive cycle
  • 2
Self test type
  • CMDTC self test
Sensor used
  • CKP sensor
  • ECT sensor No. 1
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