I put the new one in and updated the car. She now runs and charges thank god!
Thanks everyone for your help and good luck with your projects
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Salvage 2022 Model Y LR. High Voltage Battery contactors not closing. Car has the new Li-Ion 12v battery.
- Thread starter UShe
- Start date
Thanks everyone for your help and good luck with your projects
You need to power the car using a 50A 13V power supply while doing the update.
Just to update everyone.
I bought a used VCfront. ( Tesla VCfront was on back order)
Update was able to download . But wouldn’t actually update.
Kept getting a 12v fault error, even though I had a 13v 28amp charger to it.
I decided to also hook up jumper cables to a running vehicle and it worked!
thank you everyone for the great help!
I bought a used VCfront. ( Tesla VCfront was on back order)
Update was able to download . But wouldn’t actually update.
Kept getting a 12v fault error, even though I had a 13v 28amp charger to it.
I decided to also hook up jumper cables to a running vehicle and it worked!
thank you everyone for the great help!
Btw, after getting my car running I thought maybe on the newest software she enter service mode. I swapped my old Vcfront back in and tried to see if in service mode I'd be able to clear the crash data and reset Vcfront. As soon as I switched it, it went right back to service mode only loading. Swapped back in the new one and good to go. I guess these Vcfront are garbage until someone can set up a service of some sort resetting them like SRS modules.
I wonder what the official process from tesla is. Maybe on the newest update you could do something with toolbox. If I had it I'd try
An update to my case, I replaced the PCS and the contactors closed properly after “Service Can Redeploy”
In my case seems like when the pyro fuse exploded it was the reason the PCS got fried in the process.
My guess is that this is very rare situation and not a lot of cars will have that.
For most cases, updating old firmware and clearing load shed will do.
If your car can’t open service mode for geofencing reasons… you can just reset factory settings from toolbox.
And if you can’t get service mode or it’s just loading blank white page, you can clear laod shed from toolbox as there is aroutine to do so if you can’t access it from service mode.
Basically every single action you can do from service mode, you can also do from toolbox.
If you are trying to rebuild 2022 car without toolbox, this might be difficult if the car hasn’t been updated to a newer software version.
Using another vcfront will only help you because you are unable to close the eFuse and clear load shed from service mode or toolbox.
And if you do rebuild Tesla’s regularly, it’s best to have an updated, cleared vcfront handy for such cases.
In my case seems like when the pyro fuse exploded it was the reason the PCS got fried in the process.
My guess is that this is very rare situation and not a lot of cars will have that.
For most cases, updating old firmware and clearing load shed will do.
If your car can’t open service mode for geofencing reasons… you can just reset factory settings from toolbox.
And if you can’t get service mode or it’s just loading blank white page, you can clear laod shed from toolbox as there is aroutine to do so if you can’t access it from service mode.
Basically every single action you can do from service mode, you can also do from toolbox.
If you are trying to rebuild 2022 car without toolbox, this might be difficult if the car hasn’t been updated to a newer software version.
Using another vcfront will only help you because you are unable to close the eFuse and clear load shed from service mode or toolbox.
And if you do rebuild Tesla’s regularly, it’s best to have an updated, cleared vcfront handy for such cases.
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If anyone wants to be the guinea pig, I can attempt to reset a vcfront. If anyone is interested, please PM me.
How to clear the load Shed with the Toolbox? What command should be able to get it
“Clear crash load shed”
Your software version should be not so old because this routine was presented a while after they implemented the Li-Ion battery.
It is important that you have a new software version, because I’m suspecting that even if your version includes this action it is not working well, as I’ve seen a patch mentioned somewhere in toolbox about fixing this action, which means in older versions this action was not functioning properly.
Do you mean the toolbox version? I use the toolbox online version, I'm not seeing any other way for the toolbox also there is no command for clear crash load in the toolbox
Toolbox will only show commands that are present in the car. To see the option you need to update the car to new version of software. If you can’t do the update then your only remaining options are to replace the vcfront or take the car to Tesla.
I wonder what the official process from tesla is. Maybe on the newest update you could do something with toolbox. If I had it I'd tey
So you can swap that vcfront to a car running the latest software and then it should work with toolbox.
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