DTC P064A-00: Fuel Pump Control Module - Correlation Problem (Us): Outline
WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
DTC P064A:00 (PCM, SKYACTIV-G, US) DETECTION CONDITION AND POSSIBLE CAUSE
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| 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.
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| Fail-safe |
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| 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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 Courtesy of MAZDA MOTORS CORP.
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