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Home >> Mazda >> 2016 >> CX-9 Signature >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting - Engine >> Engine Control System Operation Inspection >> Engine Control System Inspection >> Main Relay Operation Inspection >> Engine coolant temperature compensation inspection
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Engine coolant temperature compensation inspection

  1. Connect the M-MDS to the DLC-2.
  2. Select the following PIDs: Refer too ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5T)] .)
    • ECT
    • IAT
    • RPM
  3. Verify that the engine is cold, then start the engine.
  4. Verify that the engine speed decreases as the engine warms up.