2020 mode 3 ccs retrofit error

[m31l0]

Hi I followed the YouTube vid and got an error code, Unable to DC fast charge / supercharge try ac charging. Any idea what’s wrong? I have a model 3 built in 09/20, already had an ECU when I bought it a few months back but no bundle of wires..I just installed the wires and updated and gave me the above error.

 

[RayK]

Welcome to TMC!

I think we might need some clarifications....

• Exactly which YouTube video are you referring to? A link would be nice.
• Exactly what "error code" did you get?
• If your car already had a fully populated Gen4 ECU (part # 1537264-00-B), then you don't need the "bundle of wires" (see this thread's first post under the section "Does this apply to my car?")