There are a few things that can cause this. I have the diagnostic flow chart which requires a specific type of scan tool. If you look at the attached pic, it shows possible causes. If you want, I can provide the directions. However, I don't want to overwhelm you if you are not comfortable. LOL It's extensive.
Let me know if you want me to send them to you.
Sunday, May 24th, 2020 AT 6:36 PM