SDU grounding

Topics concerning the Tesla front and rear drive unit drop-in board
Post Reply
espriev
Posts: 44
Joined: Mon Jan 02, 2023 5:32 pm

SDU grounding

Post by espriev »

Should there be a ground strap from chassis to the SDU? Does anyone know how this is configured on a factory car?
It seems odd to not have a safety ground... of course it would probably need to be lifted to connect to the inverter board via wifi!
I measure no continuity between the 12 volt ground on the 20 pin connector and the SDU case.
I see suggestions to use telescoping shields on the signal wires, where are these being tied to ground?
I think it would be better to tie these to chassis than to the inverter 12 volt ground...

Thanks!
User avatar
gigawatts
Posts: 18
Joined: Mon Dec 28, 2020 10:20 pm
Location: Houston Texas

Re: SDU grounding

Post by gigawatts »

My 2018 model X front drive unit came with a ground strap. I connected it to a chassis motor mount.
User avatar
gigawatts
Posts: 18
Joined: Mon Dec 28, 2020 10:20 pm
Location: Houston Texas

Re: SDU grounding

Post by gigawatts »

You can see the ground strap on the right side attached to the inverter.
6E94B6D5-8653-4F32-A05C-6E22553C4ED7.jpeg
espriev
Posts: 44
Joined: Mon Jan 02, 2023 5:32 pm

Re: SDU grounding

Post by espriev »

Thanks!
Post Reply