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Home >> Mazda >> 2020 >> CX-9 Touring, FWD >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (4 Of 6) >> DTC P064D-00: Internal Control Module A/F Sensor Processor Performance Problem >> Details On DTCs

Details On DTCs

DTC P064D:00 DETECTION CONDITION AND POSSIBLE CAUSE

DESCRIPTION Internal control module A/F sensor processor performance problem
DETECTION CONDITION Determination conditions
  • Malfunction in A/F sensor signal circuit in PCM occurs.
Preconditions
  • Battery voltage: 11-18 V(1)

(1) Value can be verified by displaying PIDs using M-MDS
Malfunction determination period
  • 0.1 s period
Drive cycle
  • 1
Self test type
  • CMDTC self test, KOER self test
Sensor used
  • PCM
FAIL-SAFE FUNCTION
  • Not applicable
VEHICLE STATUS WHEN DTCs ARE OUTPUT
  • Illuminates check engine light.
POSSIBLE CAUSE
  • PCM malfunction
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