BASIC CCS UPGRADE INSTALL DIY GUIDE

[ED_SFO]

Since I haven't seen a basic walkthru I'll just have this here for reference for those of you who are curious what steps are needed to get this done.

2021 Model Y Performance build date of 9/21

Part# 1537264-00-B

Price: $152 after tax from Tesla San Francisco

Tools: flat head screwdriver, 10mm socket with 6 inch extention

1. Pry off the tail gate plastic protector...note i have metal pieces but its a pull straight up from the left side, give it a good pull and it will come lose very easily

2. remove plastic round clip with flat head screw driver...its the one at the top of the pic

3. remove this plastic piece...pull straight up , comes out easily

4. remove plastic clip the one in the middle and remove the entire piece for the plastic pocket

5. pry the panel with your hands pull slowly down the length of the panel...

6. unplug the rear cigarette 12v power clip

7. The ecu is behind the black plastic bracket

8. remove the 10mm bolt and slide the ecu to the right and it should come out after you unplug three connectors....one of them was a little stuck but work slowly. the car will make some sounds when you start unplugging these clips. Plug in new ecu and re-install.

9. update the software!

10. wooo!

 

[everydaychris]

wow nice

 

[804son]

Wow thanks, just what I needed

 

[804son]

Did you need to unplug the 12volt battery or disconnect the HV battery?

 

[ED_SFO]

Did you need to unplug the 12volt battery or disconnect the HV battery?

Nope...what I did was open the back door and leave all the other doors close....no issues at all.

I have a ccs adapter coming from a new company in Korea...should arrive in 10 days...if all is good I'll let u guys know where to order because harumio is out of stock.

 

[804son]

Nope...what I did was open the back door and leave all the other doors close....no issues at all.

Fantastic, nice to know it's as easy as replace the ECU and install a waiting update. Thanks for the detailed "how to"!

 

[Undisclosed]

Did Tesla SF deliver the part to you or did you have to go pick it up?

 

[ED_SFO]

Did Tesla SF deliver the part to you or did you have to go pick it up?

I went in to pick up. To make sure it was the right part.

 

[Undisclosed]

I went in to pick up. To make sure it was the right part.

Nice, I might try to order one from them, was it an easy process?

Did you confirm via the sticker or like looking at it physically?

 

[ED_SFO]

Nice, I might try to order one from them, was it an easy process?

Did you confirm via the sticker or like looking at it physically?

Both...I setup a service request and asked if they had that part # in stock. They said yes pick up anytime. Pretty straight forward.

 

[digitaldad]

Thanks for the pics @ED_SFO. Finally had a pending update on wife's rig, so did it tonight.

Before:

Did not remove 12v or main battery disconnect (as read on other successful attempts)

After part swap, had two errors on-screen:

Installed update and after reboot (no alerts/errors):

Have already used the CCS adapter on my rig (came ccs enabled) on a recent road trip so glad we get to share it now.

 

[Hijump24]

Nope...what I did was open the back door and leave all the other doors close....no issues at all.

I have a ccs adapter coming from a new company in Korea...should arrive in 10 days...if all is good I'll let u guys know where to order because harumio is out of stock.

What company did you order the ccs adapter from?

 

[804son]

Thanks again @ED_SFO I followed the pictures and directions you posted. It worked like a charm.

 

[Level 1]

For those who have done this, how long would you estimate it took?
(Thinking ahead for how much this will cost when/if Tesla offers it directly.)

 

[Undisclosed]

For those who have done this, how long would you estimate it took?
(Thinking ahead for how much this will cost when/if Tesla offers it directly.)

I remember some post had a repair order which was $285 or something like that. $140 for ECU and about 0.5 labor hours.

 

[ED_SFO]

For those who have done this, how long would you estimate it took?
(Thinking ahead for how much this will cost when/if Tesla offers it directly.)

It's a 10 min job probably...first timer might be 30 mins... definitely under an hour even if u went really really slow.

 

[804son]

I spent twice as much time waiting for the update to complete, than installing the ECU.

 

[Level 1]

Great information, thanks!

On this one:

I remember some post had a repair order which was $285 or something like that. $140 for ECU and about 0.5 labor hours.

Do you mean that someone has successfully had a service center update the charging ECU for them?
I had thought that they weren't doing this yet, as the CCS adapter itself wasn't officially available in North America?

 

[Undisclosed]

Just got the part and did it along with my cargo cover retrofit and it only took 15 minutes to complete.. updated the car after and boom ccs enabled, only thing I need now is an oem ccs adapter..

 

[Retiredeh]

Does this part work on a 2018 Model 3?