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Home >> Mazda >> 2018 >> CX-3 Touring, FWD >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (1 Of 4) >> DTC P025B-00; Fuel Pump Control Module Circuit Range/Performance Problem >> Notes

DTC P025B-00; Fuel Pump Control Module Circuit Range/Performance Problem: Notes

DTC P025B:00 (SKYACTIV-G 2.0) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P025B:00 Fuel pump control module circuit range/performance problem
DETECTION CONDITION
  • When any of the following conditions is met:
    • The temperature in the fuel pump control module is too high.
    • Output duty ratio signal received from PCM is in error.
      • Output signal from fuel pump control module is erratic (noise overlap).

    Diagnostic support note

  • This is a continuous monitor (CCM).
  • 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
  • Stops fuel pump control
POSSIBLE CAUSE
  • Fuel pump control module connector or terminals malfunction
  • PCM connector or terminals malfunction
  • Short to ground in wiring harness between fuel pump control module terminal 1B and PCM terminal 2AE
  • Short to power supply in wiring harness between fuel pump control module terminal 1B and PCM terminal 2AE
  • Open circuit in wiring harness between fuel pump control module terminal 1B and PCM terminal 2AE
  • Fuel pump control module malfunction
  • PCM malfunction
G11431488Courtesy of MAZDA MOTORS CORP.