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Home >> Mazda >> 2021 >> 3 Select, 4D Hatchback, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> On-Board Diagnostic - Engine Control System (VINS 7, L, M) (2 Of 4) >> DTC P064A-00: Fuel Pump Control Module: Correlation Problem >> Outline
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DTC P064A-00: Fuel Pump Control Module: Correlation Problem: Outline

DTC P064A:00 (PCM, VINs 7, L, M, US) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Fuel pump control module: correlation problem
Detection condition
  • The difference between the rotation speed commanded by the fuel pump control module and the fuel pump unit motor speed exceeds the specification.
  • When the fuel pump unit motor starts, the fuel pump control module cannot detect the induced voltage for the specified time.
Fail-safe
  • Not applicable
Possible cause
  • Fuel pump unit connector or terminals malfunction
  • Fuel pump unit malfunction
  • Fuel pump control module connector or terminals malfunction
  • Short to power supply in fuel pump unit signal circuit
  • Fuel pump control module malfunction
  • PCM malfunction
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