confused because I forgot about a sidepost connection, I'm part idiot 
Last edited:
Oops, forgot about a 2nd battery having 2 positives connected, lol
- Thread starter Doubeleive
- Start date
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wjburken
Supporting Member
Do you have anything plugged into the 12V sockets that could be a back channel into you electric circuit? I see an extension cord next to the vehicle, what is that powering. what if you unplugged your Tech2?
wjburken
Supporting Member
I ask because you can put 12V back into your system through the 12V cigarette lighter sockets that is enough to help boost the charge on a low battery.
https://www.amazon.com/Wagan-EL9796-Quick-Jumper-Jumpstarter/dp/B00005OWK2
wjburken
Supporting Member
He was trying to reprogram the security module on his Denali last night. What you see is his Tech2 plugged into the OBDII port on his vehicle.
swathdiver
Full Access Member
I was wondering if he had the Tech-2 powered up from a portable battery but not sure I see that kind of wiring on around it.
wjburken
Supporting Member
No, I’m talking about under the hood near the first battery in the video.
OP
OP
no the tech2 was unplugged from the obd port because I was trying to disconnect power to let stuff reset, after thinking about it maybe one of my battery's is shorted I will find out later sick as hell had the shivers since 3am, stupid cold has been hanging around for a week, goes away and comes back the next day, headache 24/7.
OP
OP
no cap
