Knock sensor dont work for 2005 dodge durango

This problem is very seldom the knock sensor, it can be the harness connector at the sensor or the engine has excessive knock which will set a code, u did not mention the particular code so hard to say, the location of the knock sensor is the lower section of the engine block, it is screwed into what would normally be a block drain plug, if u replace it u need to torque it to whatever the factory spec is or it can cause it throw another code..