LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2016 >> CX-9 Signature >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic (2 Of 4) >> DTC P064A-00: Fuel Pump Control Module Error >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC P064A-00: Fuel Pump Control Module Error: Notes

DTC P064A:00 Fuel pump control module error
DETECTION CONDITION 
  • The difference between the actual fuel pressure and the target fuel pressure is 10 kPa {0.10 kgf/cm 2  , 1.5 psi} or more  even though the fuel pressure feedback amount on the low pressure side remains high.

    Diagnostic support note 

  • This is a continuous monitor (other).
  • The check engine light does not illuminate.
  • FREEZE FRAME DATA is not available.
  • Snapshot data is available.
  • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION 
  • 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 ground in wiring harness between fuel pump unit terminal A and fuel pump control module terminal 2C
  • Open circuit in wiring harness between the following terminals:
    • Fuel pump unit terminal A-Fuel pump control module terminal 2C
    • Fuel pump unit terminal B-Fuel pump control module terminal 2D
  • Fuel pump control module malfunction
  • PCM connector or terminals malfunction
  • PCM malfunction
G10946228