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Home >> Mazda >> 2017 >> CX-9 Signature >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (3 Of 5) >> DTC P2565-00; WASTEGATE Valve Position Sensor Circuit High Input >> Notes
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DTC P2565-00; WASTEGATE Valve Position Sensor Circuit High Input: Notes

DETECTION CONDITION AND POSSIBLE CAUSE

DTC P2565:00 Wastegate valve position sensor circuit high input
DETECTION CONDITION
  • If the input voltage at the PCM terminal 1BJ is more than 4.84 V for 2 s, the PCM determines that the wastegate valve position sensor circuit is high.

    MONITORING CONDITIONS

    • Battery voltage: 8 V or more
      • 5 s have elapsed after the ignition was switched ON (engine off or on)

    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
  • Stop the supercharging pressure control. (fully open the wastegate valve)
POSSIBLE CAUSE
  • Wastegate valve connector or terminals malfunction
  • PCM connector or terminals malfunction
  • Short to power supply in wiring harness between wastegate valve terminal E and PCM terminal 1BJ
  • Wastegate valve position sensor power supply circuit and signal circuit are shorted to each other
  • Open circuit in wiring harness between the following terminals:
    • Wastegate valve terminal E-PCM terminal 1BJ
      • Wastegate valve terminal C-PCM terminal 1AR
  • Wastegate valve position sensor malfunction
  • PCM malfunction
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