2002 gmc sierra 2500hd showing code P0332 from my scanner

Hi I just bought a used 2002 Sierra 2500hd crew cab 4x4. A few days after I bought it the check engine light came on. I bought a obdii scanner on ebay and found it shows P0332. I reset the computer but a
few days later the check engine light came back and again showing code P0332. In the book it say knock sensor 2 Low voltage. What is most likely the problem? How to diagnose further?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.