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Home >> Mazda >> 2011 >> CX-9 Touring, 3.7 A, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [MZI-3.7] >> Knock Sensor (KS) Inspection >> Resistance Inspection

Resistance Inspection

  1. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7] .)
  2. Disconnect the KS connector. (See KNOCK SENSOR (KS) REMOVAL/INSTALLATION .)
  3. Measure the resistance between the KS terminals.
    • KS: terminals A and B (KS (LH))
    • KS: terminals C and D (KS (RH))
      • If not as specified, replace the KS. (See KNOCK SENSOR (KS) REMOVAL/INSTALLATION .)
      • If the KS is normal, but PID value is out of specification, perform the "Circuit Open/Short Inspection".

        KS resistance 

        Approx. 4.87 Mohms 

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