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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Symptom Troubleshooting - Engine (VIN A)) >> Engine Control System Operation Inspection [PYUL] >> Drive-by-wire Control System Inspection >> Load compensation inspection

Load compensation inspection

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  1. Start the engine and let it idle.
  2. Connect the M-MDS to the DLC-2.
  3. Select the ENG_RPM PID.
    NOTE:
    • Excludes temporary idle speed drop just after the loads are turned on. 
  4. Verify that the engine speed is within specification under each load condition. (Refer to [ENGINE TUNE-UP ] in Service Information).
    • If the load condition is not as specified, inspect the following:
      • A/C switch and related wiring harness system (A/C request signal is always on or off)
      • Electrical load
      • Charging system (Refer to [BATTERY INSPECTION ] in Service Information). (Refer to [ GENERATOR INSPECTION] in Service Information). (Refer to [DC-DC CONVERTER INSPECTION ] in Service Information).