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Home >> Mazda >> 2017 >> CX-9 Signature >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (1 Of 5) >> DTC P0045-00; WASTEGATE Valve Actuator Control Circuit Low Input >> Notes
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DTC P0045-00; WASTEGATE Valve Actuator Control Circuit Low Input: Notes

DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0045:00 Wastegate valve actuator control circuit low input
DETECTION CONDITION
  • If the voltage from the wastegate valve actuator is below specified value, the PCM determines that the wastegate valve actuator circuit has a malfunction.

    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
  • Stop the supercharging pressure control. (fully open the wastegate valve)
POSSIBLE CAUSE
  • Wastegate valve connector or terminals malfunction
  • Short to ground in wiring harness between the following terminals:
    • Wastegate valve terminal F-PCM terminal 1CD
      • Wastegate valve terminal B-PCM terminal 1BZ
  • PCM connector or terminals malfunction
  • Open circuit in wiring harness between the following terminals:
    • Wastegate valve terminal F-PCM terminal 1CD
      • Wastegate valve terminal B-PCM terminal 1BZ
  • Wastegate valve actuator malfunction
  • PCM malfunction
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