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Home >> Mazda >> 2017 >> CX-3 Touring, AWD >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (1 Of 5) >> DTC P0193-00; Fuel Pressure Sensor Circuit High Input >> Notes
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DTC P0193-00; Fuel Pressure Sensor Circuit High Input: Notes

DTC P0193:00 (SKYACTIV-G 2.0) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0193:00 Fuel pressure sensor circuit high input
DETECTION CONDITION
  • If the input voltage at the PCM terminal 1CA is more than 4.86 V for 5 s, the PCM determines that the fuel pressure sensor circuit is high.

    Diagnostic support note

  • This is a continuous monitor (CCM).
  • The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA/Snapshot data is available.
  • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
  • Stops high pressure fuel pump control
  • Limits intake air amount
POSSIBLE CAUSE
  • Fuel pressure sensor connector or terminals malfunction
  • PCM connector or terminals malfunction
  • Fuel pressure sensor malfunction
  • Short to power supply in wiring harness between fuel pressure sensor terminal B and PCM terminal 1CA
  • Open circuit in wiring harness between the following terminals:
    • Fuel pressure sensor terminal C-PCM terminal 1BJ
    • Fuel pressure sensor terminal B-PCM terminal 1CA
      • Fuel pressure sensor terminal A-PCM terminal 1CB
  • PCM malfunction
G11431481
CAUTION:
  • Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.