Behind the front bumper. Under the front, just below the radiator is a plastic skid plate. Just above this skid plate. There is 1 on both sides. They have an orange plastic plug clip.
The front ones are located jut below the radiator support.They are mounte with 2 10mm bolts.
You can run a diagnostic test for the knock sensor, on your 2005 Chevy avalanche, by hooking the engine up to a diagnostic tester.
what is location of cam positioning sensor on 2005 scion xb
were is the oil pressure sensor located
The owners manual would have that information.
knock sensor location
$325 on a 2005 suburban at my mechanics garage.
Not sure if the 2005 is the same as the 2006 model but the only way I know is to disengage both airbag plugs under each seat. No beep but also no airbag.
on the muffler
There are two knock sensors, they are both located under the upper intake manifold.
Steering wheel, passenger side of the dash, optional in front seats/
Due to the inherent dangers of working on the SRS I would recommend you have this done by a professional.