Knock Sensor: Testing and Inspection

Need a step-by-step guide?

Get an AI-powered repair guide with parts lists, cost estimates, and clear instructions for your 1997 Mazda.

AI Repair Guides
1. Verify that the ignition switch is OFF.
2. Disconnect the knock sensor connector.




3. Measure the resistance between knock sensor terminal A and the knock sensor body by using an ohmmeter.

Specification: Approx. 560 k Ohms @ 20°C (68°F)

4. If not as specified, replace the knock sensor.