Electrical issues

Jbendris

New member
Nov 20, 2022
1
0
1
2017 l5p duramax. Replaced both batteries and now have all sorts of electrical issues. Truck runs fine and starts without a problem. Driver side headlight went out, radio does not turn on except for back up camera when put in reverse, air/heat does not turn on, digital heads up display not working , drivers side blinker flashes extremely fast while right side does not work. Cargo lights will not turn on and usb ports not charging. Any ideas?? All gauge clusters working appropriately
 

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,269
1,562
113
Mid Michigan
....and you've already checked all fuses and relays and they are all in good working condition?