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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (On-Board Diagnostic - Pcm (VIN A) (3 Of 4)) >> DTC P0A0F-00: Engine Failed To Restart >> Details On DTCs

Details On DTCs

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P0A0F: 00 (PCM (PYUL)) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Engine failed to restart
Detection condition Determination conditions
  • Any one of the following conditions is met:
    • When the engine should restart after it is stopped by the i-stop control, it is detected that cranking has been continuously performed for a predetermined period of time and has failed once.
    • Engine does not crank when the engine is stopped and started by the i-stop control.
Preconditions
  • Not applicable
Malfunction determination period
  • Not applicable
Fail-safe
  • Inhibits engine-stop by i-stop control.
Vehicle status when DTCs are output
  • Not applicable
Possible cause
  • Related parts malfunction
    • Starter relay malfunction
    • Battery malfunction
    • Wiring harness malfunction between starter relay and PCM, or poor connector contact
    • Starter malfunction
  • Piston stop position malfunction during idling stop
    • Generator control malfunction
    • CKP sensor signal error
    • Throttle valve operation malfunction (drive-by-wire control malfunction)
    • Intake air system malfunction
  • Air suction
  • Vacuum hose, evaporative hose, ventilation hose breakage
    • Purge control malfunction
    • Generator drive belt shear, deviation, or wear
    • Engine starting system malfunction
  • Engine mechanical malfunction
    • Improper intake valve timing
    • Electric variable valve timing system malfunction
  • Electric variable valve timing driver malfunction
  • Electric variable valve timing motor malfunction
  • Electric variable valve timing actuator malfunction
    • Improper exhaust valve timing
    • Hydraulic variable valve timing system malfunction
  • PCM malfunction