2017 P20B9 Code Inductant Heater

[JDjoe97]

Hi guys struggling to find a whole of information about what the fix is to the heater code, or troubleshooting procedure. Guess I was hoping for miracles with a online SM or something being available. Looking for someone who has experience in trouble shooting or am I just looking at a new pump assembly for sure. I am stock currently but over 100k miles considering going weight loss if this is as significant cost as I think it may be. Thank You for any help, also any good trustworthy shops in Indiana ?

 

[flan]

I believe that’s the heater in the DEF tank. Check the wiring from tank along the frame, Check all the connections for corrosion for starters, maybe slobber some dielectric grease in there too.