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Home >> Mazda >> 2012 >> 6 i Touring >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [MZR 2.5] >> Knock Sensor (KS) Inspection
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Knock Sensor (KS) Inspection

  1. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.5] .)
  2. Disconnect the KS connector.
  3. Measure the resistance between KS terminals A and B.
    Fig 1: Identifying Knock Sensor Connector Terminals
    G08140799

    KS specification 

    • Approx. 4.87 megohms [ECT: 25 °C {77 °F}]