Resistance Inspection

1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
2. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
3. Remove the intake manifold. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
4. Disconnect the KS connector.
5. Remove the KS. (See KNOCK SENSOR (KS) REMOVAL/INSTALLATION .)
6. Measure the resistance between KS terminals A and B.

Fig 1: KS Connector Terminals

Courtesy of MAZDA MOTORS CORP.

• If not as specified, replace the KS. (See KNOCK SENSOR (KS) REMOVAL/INSTALLATION .)

Specification 

504-616 kilohms [10-30 °C {50-86 °F}]