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Home >> Mazda >> 2024 >> CX-30 Preferred >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (On-Board Diagnostic - Engine Control (VIN Y) (3 Of 6)) >> DTC P025B-00: Fuel Pump Control Module System: Circuit Malfunction

DTC P025B-00: Fuel Pump Control Module System: Circuit Malfunction

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P025B-00: (PCM - VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Fuel pump control module system: Circuit malfunction
Detection condition
  • Any one of the following conditions is met:
    • PCM detects overheating in fuel pump control module.
    • Output duty ratio signal received from PCM is in error.
    • Temperature detection thermistor in fuel pump control module is malfunctioning.
    • Output signal from fuel pump control module is erratic (noise overlap).
Fail-safe
  • Stops fuel pump control. (If overheating is detected in fuel pump control module)
Possible cause
  1. Malfunction in wiring harness (including connector/terminal) between fuel pump control module and PCM (see CIRCUIT INSPECTION .) (see CLEARING DTC .)
  2. Fuel pump control module malfunction (Refer to applicable FUEL PUMP CONTROL MODULE INSPECTION (VIN Y) in the service information.)
  3. PCM malfunction (Refer to applicable PCM REMOVAL/INSTALLATION (VIN Y) in the service information.)
Repeatability verification procedure
  1. Clear the DTC recorded in the memory. (see CLEARING DTC .)
  2. Perform the KOEO or KOER self test. (See DTC INSPECTION .)
G16378194Courtesy of MAZDA MOTORS CORP.
1 PCM
2 Fuel pump control module