Hi all,
Kinda of at the end of my rope with my ‘12 Model S (and with Tesla Service.)
Model S started displaying the low 12v message, and, assuming Tesla would charge an arm and a leg, I ordered a replacement from EV Tuning. I installed it following a couple of YouTube videos. It really wasn’t very difficult. Upon connecting the new 12v, I got Service Required errors on the dash and lots of BMS errors in the notifications area on the MCU. The car will not switch into Drive. I’ve attached a picture of the of the errors I’m getting.
Long story short, the car has been to Tesla 3 times now. The first time they said it needed a new 12v. The car worked for a couple of days, then got the same Service Required errors. 2nd time they said they “fixed the pins on the 12v sensor”. Car worked fine for a couple of days then same errors. 3rd time they said it needed a new DC DC converter and gave me a $5k estimate.
I declined that estimate since I’d given them $1200 so far to fix my car and they had failed. Also I knew, thanks to these forums, that the DC DC could be serviced somewhat easily. So this morning I pulled out the DC DC and opened it up. All 4 fuses are good. Nothing seems amiss from what I can tell.
SO... that brings me here. With a dead car that seems to not be getting power to the 12v from the DC DC.
I guess my questions are:
1. Is there anything else in the DC DC that can be tested if I open it further?
2. Does anyone have any other advice before I purchase a used DC DC for replacement?
At this point I’m not confident that replacing the DC DC will fix the issue.
If you read this far, thanks! And thanks for any advice!
Kinda of at the end of my rope with my ‘12 Model S (and with Tesla Service.)
Model S started displaying the low 12v message, and, assuming Tesla would charge an arm and a leg, I ordered a replacement from EV Tuning. I installed it following a couple of YouTube videos. It really wasn’t very difficult. Upon connecting the new 12v, I got Service Required errors on the dash and lots of BMS errors in the notifications area on the MCU. The car will not switch into Drive. I’ve attached a picture of the of the errors I’m getting.
Long story short, the car has been to Tesla 3 times now. The first time they said it needed a new 12v. The car worked for a couple of days, then got the same Service Required errors. 2nd time they said they “fixed the pins on the 12v sensor”. Car worked fine for a couple of days then same errors. 3rd time they said it needed a new DC DC converter and gave me a $5k estimate.
I declined that estimate since I’d given them $1200 so far to fix my car and they had failed. Also I knew, thanks to these forums, that the DC DC could be serviced somewhat easily. So this morning I pulled out the DC DC and opened it up. All 4 fuses are good. Nothing seems amiss from what I can tell.
SO... that brings me here. With a dead car that seems to not be getting power to the 12v from the DC DC.
I guess my questions are:
1. Is there anything else in the DC DC that can be tested if I open it further?
2. Does anyone have any other advice before I purchase a used DC DC for replacement?
At this point I’m not confident that replacing the DC DC will fix the issue.
If you read this far, thanks! And thanks for any advice!