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Home >> Mazda >> 2021 >> CX-5 Sport, FWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VIN M) >> Exhaust Shutter Valve Position Sensor Inspection >> Function inspection
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Function inspection

  1. Leave the vehicle for 6 hours or more.
  2. Connect the M-MDS to the DLC-2.
  3. Switch the ignition ON (engine off).
  4. Display the PIDs EFCV_AP_C and EFCV_AP_M.
  5. Start the engine.
  6. Verify that the vehicle is under all of the following conditions right after engine start.
    • The PID EFCV_AP_M value conforms to the EFCV_AP_C value.
    • The PID EFCV_AP_M value changes in the order of approx. 66°(fully closed position), 4°(fully open position), and 66°(fully closed position).
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