How to Test and replace knock sensors
Watch this car repair tutorial video that demonstrates how to test and replace your vehicle's knock sensor. Once you extract the codes from the vehicle and realize that troubleshooting begins with the knock sensors, there is a quick test that you can perform to find out if your knock sensors are working properly. Follow the procedure involved with testing this sensor:
-Connect tester leads
-Tap knock sensor and observe test readings
This tutorial performs this method to help you test and repair your vehicle's knock sensor.