LBZ: Electrical gremlins

A_T_Ver

Member
Jul 31, 2007
416
0
16
Security light, battery light stay on when started. Engine temp, fuel gauge, oil pressure gauge do not work. Thought bcm, unplugged it completely and the truck started right up. Could it be the dash cluster itself. Brand new batteries and alternator. I’m lost!
 

scott_willerscheidt

New member
Jan 30, 2019
27
3
3
52
gig harbor wa.
This happened to me. Turned out to be all of the grounds, 9 in total

2002 gmc sierra 2500hd quad cab short bed
Zone 3" kit
285/70/17 Nitto Terra Grapplers
17x9 Raceline 930's
S&B intake
3" turbo horn
PPE boost valve
MBRP 3" downpipe
MBRP 4" exhaust
LED conversion
Edge CTS2 with SAS EGT probe
boost auto towing mirrors ( dual function)
fass 90
 

A_T_Ver

Member
Jul 31, 2007
416
0
16
Anyone have a diagram for the grounds? Heated seats won’t work either. All happened at the same time.