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Home >> Mazda >> 2014 >> 5 Grand Touring >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Knock Sensor (KS) Inspection
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Knock Sensor (KS) Inspection

  1. Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION .)
  2. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION .)
  3. Disconnect the KS connector.
  4. Measure the resistance between KS terminals A and B.
    • If not as specified, replace the KS. (See KNOCK SENSOR (KS) REMOVAL/INSTALLATION .)
      Fig 1: Identifying Knock Sensor Connector Terminals A And B
      G08150346Courtesy of MAZDA MOTORS CORP.

      KS specification 

    • Approx. 4.87 megohms [normal temperature]
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