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Home >> Mazda >> 2019 >> 3 Base, 4D Hatchback, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> On-Board Diagnostic - Engine (2 Of 4) >> DTC P064D-00: Internal Control Module A/F Sensor Processor Performance Problem (Pcm (Us)) >> Troubleshooting Diagnostic Procedure >> Intention of troubleshooting procedure
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Intention of troubleshooting procedure

DTC P064D:00 (PCM (US)) DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 PURPOSE: PERFORM DTC INSPECTION AND VERIFY IF MALFUNCTIONING PART IS PCM
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • Replicate the vehicle conditions at the time the DTC was detected using the following procedure.
  • Perform the DTC inspection for the PCM. (See DTC INSPECTION .)
  • Is the same Pending DTC present?
 Yes Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(US)] .)
If the CAN communication is normal, replace the PCM and perform the repair completion verification.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-G (VIN M (US))] .)
(See PCM REMOVAL/INSTALLATION [SKYACTIV-G (VIN L (US))] .)
No Go to the next step.
Repair completion verification PURPOSE: VERIFY IF OTHER DTCs DISPLAYED
  • Perform the DTC inspection. (See DTC INSPECTION .)
  • Are any other DTCs displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
No DTC troubleshooting completed.
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