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BMS_027 has hidden fault code F027_repeteadly, i reset it with t-diag.

PTC is chanced, i replace also SIM -card, old was lithuanian prepaid. And then...Emmc failded! i order new chip, and next job is read the old and program the new one...

Thanks! second from the left is short-circuited! this is J-version

Ok! Can you tell me how to do disassembly, or where i can find instructions for that?

Problem solved PERKELE!! 😂 Cabin PTC heater. i remove it, and put a dummy plug to front junction box, (bus) and car works! god damn i feel good :D Next step is to chance that ! I measured insulation (probed) @250vdc, and insulation was fine, weird...

Must try tomorrow. Also guy from t-diag takes teamviewer contact. Here is one picture from today, what is fc contactor?

I measured all hv components and they were all in specs, i use tesla guide how to do it. proped all components. Could it be possible, that software is jammed somehow? i install software again at factory mode, and while it was installing, i hear main contactors trying to contact few times, so i...

This faults i have now. Can see only F150 And w150, if not in factory mode

i found that ac compressor was being shorted, only ~2 MOhms to cars frame. I change a new one, but still same codes. So have to check all other HV equipments..

ok! i dont have guarantee or support by SC, salvage car, yesterday i try software reinstall, but it didnt complete succesfully. new update was sended, and now try with that one. car is in factory mode.

Do you have same codes? not anything new here, if someone can help, i can pay for it!

up...

i have same errors, but car dont move anymore...

Model S 2014, was charger at my home, then unable to drive, then i put it factory mode, and see that "precharge too long" What should i check next? some guy from latvia has same problem, and he has faulty HVAC controller. how i can check do i have same issue? i have t-diag, but i'm not very...

I wrote you pm, can you answer :)

my problem was f027_repeatedly, have to reset it with t-diag

It is easy to chance, just open the 12v connector, then main contactors are not switched. Bms 027 has also hidden code, f027 repeated, it will lock bms ecu, with t diag full version it can be opened. it comes if f027 has come over 10 times.

I’m training with t-diag ... if u have some advice what to do, i listen

did you get any help?

hi, did you get any help? i have same problem, HVIL loop is ok, AC compressor was faulty and i replace it, but still same errors...

I measured out that ac compressor was faulty, I replace it, but same errors.what next

Hi, i have exactly same sound problem, did u get any help?

Hi, my masterchargel HVIL loop is cut. If a put a master to slave, does the charging work up to 40A? if I remove slave to master, and get the broken one off, it needs reprogramming?

Dont think so, measured 295V, range 40km, so it should be ok. No warranty.

I remove battery, Hv contactors are working fine. So I have to make more inspections

Any idea? I order hv-contactors already, but delivery takes about month. 12v battery voltage was about 13v, when this problem started with cautions, and regeneration stopped working. I reset all ecu’s but this doesn’t help. I have t-diag software.