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Home >> Mazda >> 2009 >> MX-5 Miata SV >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (LF 2.0L) >> Knock Sensor (KS) Inspection [LF] >> Resistance Inspection

Resistance Inspection

  1. Remove the battery cover.
  2. Remove the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF] )
  3. Disconnect the KS connector.
  4. Measure resistance between KS terminals A and B.
    • If not within the specification, replace the KS. (See KNOCK SENSOR (KS) REMOVAL/INSTALLATION [LF] )
    • If the monitor item status/specification (reference) is not within the specification, even though the KS resistance is within the specification, perform the "Circuit Open/Short Inspection".

      KS resistance 

      Approx. 4.87 megohms 

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