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Home >> Mazda >> 2004 >> 6 s, 4D Hatchback, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (AJ) >> Knock Sensor (KS) Inspection >> Resistance Inspection

Resistance Inspection

  1. Disconnect the negative battery cable.
  2. Disconnect the KS connector.
  3. Measure the resistance between KS terminals A and B using an ohmmeter.
    • If the KS is okay, but the PID value is out of specification, perform the "Circuit Open/Short Inspection".
    • If not as specified, replace the KS. (See KNOCK SENSOR (KS) REMOVAL/INSTALLATION .)

    Specification 

    Approx. 4.87 megohms (20°C {68°F}) 

Fig 1: KS Connector Terminal Identification
G01026793Courtesy of MAZDA MOTORS CORP.