Inspection of Resistance

NOTE:

Perform the following test only when directed.

Verify that the ignition switch is at LOCK.
Disconnect KS connector.
Measure the resistance between KS terminal A and the KS body using an ohmmeter.
- 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 KNOCK SENSOR (KS) REMOVAL/INSTALLATION .)
  
  Fig 1: Identifying Knock Sensor Harness Side Connector Terminals
  Courtesy of MAZDA MOTORS CORP.
Specification
1. Approx.560 kilohms (20°C {68°F})
Reconnect the KS connector.