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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 493 (Symptom Troubleshooting [Engine Control System BP, BP With TC)) >> Engine Control System Operation Inspection >> Idle Air Control (IAC) Inspection >> Load compensation inspection

Load compensation inspection

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
  1. Warm up the engine to normal operating temperature and idle it.
  2. Connect the WDS or equivalent to DLC-2.
  3. Select the following PID.
    • RPM
  4. Turn the electrical loads on and verify that the engine speed is within the specification. (See ENGINE TUNE-UP .)
    • If not as specified, carry out following:
      • Headlight switch inspection
      • A/C switch inspection
      • P/S pressure switch inspection
      • IAC valve inspection
      • Fan switch inspection
      • Cooling fan motor inspection
      • Rear window defroster inspection