Sponsored

PSA: Be gentle with the harness connectors in your CT.

mikeg112

Well-known member
First Name
Michael
Joined
Mar 2, 2024
Threads
5
Messages
82
Reaction score
153
Location
Bay Area, CA
Vehicles
Model Y, Cybertruck
Country flag
It doesn't surprise me that they opted to replace the entire harness, and good on tesla for doing that. Now with everything running at 48V and 4x smaller wiring vs 12v, it makes sense when it comes to voltage resistance, wiring etc. to just replace it. You would be surprised how much in the ethernet world a few inches of wire here and there can sku electric tolerances and introduce electrical jitter and delays.
Sponsored

 

mongo

Well-known member
Joined
May 27, 2024
Threads
6
Messages
4,646
Reaction score
5,652
Location
SE Michigan
Vehicles
Cyberbeast
Country flag
It doesn't surprise me that they opted to replace the entire harness, and good on tesla for doing that. Now with everything running at 48V and 4x smaller wiring vs 12v, it makes sense when it comes to voltage resistance, wiring etc. to just replace it. You would be surprised how much in the ethernet world a few inches of wire here and there can sku electric tolerances and introduce electrical jitter and delays.
Agree that splicing the Etherloop pair could go badly.
The required wire size for a given load is smaller, but they still kept minimum gauge rational for an automotive application. I think the smallest is 0.13mm² or 26 AWG equivalent.
 

Mini2nut

Well-known member
Joined
Apr 2, 2020
Threads
138
Messages
4,171
Reaction score
7,636
Location
Planet Earth
Vehicles
$59k CT delivered 6/26/26
Country flag
It doesn't surprise me that they opted to replace the entire harness, and good on tesla for doing that. Now with everything running at 48V and 4x smaller wiring vs 12v, it makes sense when it comes to voltage resistance, wiring etc. to just replace it. You would be surprised how much in the ethernet world a few inches of wire here and there can sku electric tolerances and introduce electrical jitter and delays.
The Cybertruck uses 48v and traditional 12v wiring on the harness.

My guess is the goal was to convert every electrical load to 48v but the engineers had to "put the pencils down" so corporate could bring the Cybertruck to market.
Sponsored

 
 








Top