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Home >> Mazda >> 2004 >> MX-5 Miata Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> Knock Sensor (KS) Inspection >> Inspection Of Resistance

Inspection Of Resistance

NOTE:
  • Perform the following test only when directed.
  1. Verify that the ignition switch is at LOCK.
  2. Disconnect KS connector.
  3. Measure the resistance between KS terminal A and the KS body using an ohmmeter.
    Fig 1: Identifying Knock Sensor Harness Side Connector Terminals
    G00989742Courtesy of MAZDA MOTORS CORP.
    • If not as specified, replace the KS.
    • If knock sensor is okay, but PID value is out of specification, perform the "Circuit Open/Short Inspection". See CIRCUIT OPEN/SHORT INSPECTION .

    Specification 

    1. Approx. 560 kilohms [20°C {68°F}] 
  4. Reconnect the KS connector.
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