no crank no start

[dbeene30]

randomly got a no crank no start all fuses and relays are good we did notice there is power to number 86 on the starter relay when the truck is off any pointers really need the truck for work can jump the starter at the relay and truck will start as well as jumping it at the starter. but if you turn the key it does nothing.

 

[Ron Nielson]

What powers the 86 terminal on the relay? That is the question. See the attachment

Charm Manuals for Chevrolet vehicles | Operation CHARM

 

[Chevy1925]

randomly got a no crank no start all fuses and relays are good we did notice there is power to number 86 on the starter relay when the truck is off any pointers really need the truck for work can jump the starter at the relay and truck will start as well as jumping it at the starter. but if you turn the key it does nothing.

Well lets start with the year of your lbz (hopefully it is), what you did last to the truck, any mods to the truck and if you have a scanner

Sounds like you’re going to be jumping the starter to get to work till you figure this out.