Lineman0800

Checked all grounds and cleaned them even used jumper cables from negative post to engine ground and chassis ground still nothing..scan tool will not comminicate with ecm and several other modules..can make engine turnover by jumping starter relay..i ordered another ecm so maybe that will fix it

Got 2015 silverado 1500 5.3l that the stabilitrak service light,4wd,trailer brake,steerind assist,fuel level light,abs lights came on and truck went dead..check all fuses,battery etc..and still truck willnot crank..if anybody knows what to look at next would be appericated