[midwestmike1]

I have a 2007 escalade that i am have problems with. A check engine light came on and tried to hook up to read code but device did not reconize vehicle. so we unhooked battery for a minute to reset it and the the guage no longer work but they just blink blue. Help . what do i do

 

[gloz28]

Better hope you didn't fry and thing in the truck but it's not likely