GMT 800 with Parasitic Draw? What these videos.

Reply Subscribe

Thread Tools

Search this Thread

06-24-2023, 10:51 PM

strutaeng

TECH Resident

Thread Starter

Join Date: Oct 2020

Location: DFW

Posts: 845

Likes: 1,781

Received 182 Likes on 148 Posts

GMT 800 with Parasitic Draw? What these videos.

Pretty cool diagnosis of SEVERAL parasitic draws. I wasn't expecting that rear stereo controller to be one of the sources of the parasitic draw. 😒

May be a good idea to unplug it if someone is having a similar issue. Anyways, he shows a good approach to finding a parasitic draw.

https://youtu.be/H-uZ9BCH-uZ9BCbsV

https://youtu.be/XcG8EN832SU

Reply Like

06-25-2023, 09:20 PM

1FastBrick

Custm2500's Rude Friend

iTrader: (17)

Join Date: Apr 2007

Location: JunkYard

Posts: 14,326

Likes: 90

Received 761 Likes on 630 Posts

Pine hallow diagnostic is a good channel to learn from. The only thing is the AC controller is known to have a small draw and GM released a TSB about it. Some one posted in his comments but he missed it.