[Blackdog76]

I haven't been able to find a solution for collision damage repaired I series cars. The pyro fuse disconnects the HV battery and inverter and without taking the vehicle to BMW, which is not an option anyway (they refused to work on a salvage car) there is no way to reset the system after the repair. Anyone have a solution yet? No luck with Ista + or Bimmercode so there has to be some software that can do this with all the BMW hybrids out there now.

[avdept]

Did you actually replace positive cable on low voltage battery? Besides pyrofuse, there's also 2 tiny wires which cuts off when puro fuse blows. Symptoms - car wakes up, but engine wont start. I fixed mine(after accident) in a same way
Restoring positive wire wont help, since they can't restore those 2 tiny wires

[Blackdog76]

Originally Posted by avdept

Did you actually replace positive cable on low voltage battery? Besides pyrofuse, there's also 2 tiny wires which cuts off when puro fuse blows. Symptoms - car wakes up, but engine wont start. I fixed mine(after accident) in a same way
Restoring positive wire wont help, since they can't restore those 2 tiny wires

What wires are you referring to? Yes I did replace the terminal and pyro fuse.

[Flasher]

when the car was in a crash it sets a flag in the SME to lock the functionality of the contactors in the S-box.
in the regular case you would need a BMW EOS tester session to check the HV battery for health and integrety but the EOS tester writes it's lock bit just at the end of the check session when it also generates the 12 digit code which is needed in ISTA to reactivate the locked status of the HV contactors.
I found a lock bit in the SME which i can reset without the need of the 12 digit EOS code but i could not yet test this in a real life crash situation to check if this is the same lockbit which is set by the EOS tester and/or the airbag module....
When you can install Ediabas Tool 32 i can guide you through the process to check if this will unlock the contactors of your HV battery...
i'm also curious about those two "tiny wires"- where are they located ??

[sakis4paok]

Hi can you share the info to reset SME with tool32??
Thank you..

[Mateusz726642]

My SME was blocked after an accident. I can share what you need to check if it can be unlocked.

[Blackdog76]

Originally Posted by Flasher

when the car was in a crash it sets a flag in the SME to lock the functionality of the contactors in the S-box.
in the regular case you would need a BMW EOS tester session to check the HV battery for health and integrety but the EOS tester writes it's lock bit just at the end of the check session when it also generates the 12 digit code which is needed in ISTA to reactivate the locked status of the HV contactors.
I found a lock bit in the SME which i can reset without the need of the 12 digit EOS code but i could not yet test this in a real life crash situation to check if this is the same lockbit which is set by the EOS tester and/or the airbag module....
When you can install Ediabas Tool 32 i can guide you through the process to check if this will unlock the contactors of your HV battery...
i'm also curious about those two "tiny wires"- where are they located ??

Flasher, if your still willing to help with this, I’d love to give this a try.

[Blackdog76]

Have some error codes from the SME. Finally got a hold of someone at BMW who was able to get a hold of the service manager (who refused to speak to me directly). And they told me that they could diagnose the problem starting at $615 and let me know what they find... By the time it’s all said and done, probably looking at a $2500 fee for doing a stupid EOS test that gives me a 12 digit code. There are several people on the open inverter forum that have hacked the "safety box" on the I series cars to manually open the contactors so I'll just wait a bit and see who can come up with a reasonable solution. The problem is that the I8's are rare and nobody has done it yet.

[Blackdog76]

An update. SME was not locked. Crash data and main terminal wiring have to be sorted out for the BMW hybrids to be returned to driving condition. That’s the short version.

[Bebe$]

Please share your solution!

I have a 2014 BMW i3. Your story is my story.
Please
share what you did to get the car to start up.

I’ve also replaced the terminal. I’ve used Ista+to guide me, no real solutions.

Please share!

[Blackdog76]

I sent out my airbag module which is located under the center console for a reset. Got it back and reinstalled it. After months of trying to figure out why I still had the "crash codes" I had someone do some remote programming and he said all the crash data was still there, the Ebay company "safety restore" did not do a single thing.

He was able to reset it remotely and I also had a minor wiring issue. After that was sorted, the car starts fine. Still some issues to work out but a lot closer.

[Blackdog76]

Just FYI, make sure that the switch contactors in the SME are functional before reactivating the HV system. This can be done remotely but don't ask me how.

[duffchief]

Just FYI for you Blackdog, but owners in general. If you have not had the serpentine belt on the ICE replaced, it would be a good idea to do that. It took me about an hour without having to break any coolant lines. I am working on posting that video. I live in a dry environment and if that belt goes, it shreds and may damage the crank pulley or the alternator/starter/torque equalizer mounted on the ICE. If you lose that belt, there is no way to start the ICE. The i8 doesn't have a traditional starter on only uses the electric motor on the engine.

[Blackdog76]

Originally Posted by duffchief

Just FYI for you Blackdog, but owners in general. If you have not had the serpentine belt on the ICE replaced, it would be a good idea to do that. It took me about an hour without having to break any coolant lines. I am working on posting that video. I live in a dry environment and if that belt goes, it shreds and may damage the crank pulley or the alternator/starter/torque equalizer mounted on the ICE. If you lose that belt, there is no way to start the ICE. The i8 doesn't have a traditional starter on only uses the electric motor on the engine.

I checked my belt and it looks new. But then again my car only has 20K miles

[Bebe$]

Thank you!

I also sent my airbag module to an EBay reset. And I still received the crash error once it was reinstalled, go figure

Can you share the contact information of the person who assisted you remotely?

Just to have my car start up again would be amazing!

[Blackdog76]

The easiest thing to do to find multiple people who can program and code pretty much anything, at least from what I've found is the guys on the MHH Forum. Just register for an account and post a message about what you need done and you will get linked up with some of the best programmers around and ones to fit your budget.

[Ryan-999]

[QUOTE=Flasher;31026840]when the car was in a crash it sets a flag in the SME to lock the functionality of the contactors in the S-box.
in the regular case you would need a BMW EOS tester session to check the HV battery for health and integrety but the EOS tester writes it's lock bit just at the end of the check session when it also generates the 12 digit code which is needed in ISTA to reactivate the locked status of the HV contactors.
I found a lock bit in the SME which i can reset without the need of the 12 digit EOS code but i could not yet test this in a real life crash situation to check if this is the same lockbit which is set by the EOS tester and/or the airbag module....
When you can install Ediabas Tool 32 i can guide you through the process to check if this will unlock the contactors of your HV battery...
i'm also curious about those two "tiny wires"- where are they located ??

Just got an i8 and it’s previously been to bmw and they have locked the HV system due to rodent damage. I’ve sine repaired a high voltage cable and been through all other wiring looms. Only fault code that remains is

21FOD5
Permanent

High-Voltage Battery Unit, Positive Terminal: Switch Contactor,
Contact Stuck Open Or Safety Fuse
Released.

In process of getting ista and Ediabas Tool 32. Do you think getting that code would sort it ??
Thanks in advance

[Blackdog76]

[QUOTE=Ryan-999;32067098]

Originally Posted by Flasher

when the car was in a crash it sets a flag in the SME to lock the functionality of the contactors in the S-box.
in the regular case you would need a BMW EOS tester session to check the HV battery for health and integrety but the EOS tester writes it's lock bit just at the end of the check session when it also generates the 12 digit code which is needed in ISTA to reactivate the locked status of the HV contactors.
I found a lock bit in the SME which i can reset without the need of the 12 digit EOS code but i could not yet test this in a real life crash situation to check if this is the same lockbit which is set by the EOS tester and/or the airbag module....
When you can install Ediabas Tool 32 i can guide you through the process to check if this will unlock the contactors of your HV battery...
i'm also curious about those two "tiny wires"- where are they located ??

Just got an i8 and it’s previously been to bmw and they have locked the HV system due to rodent damage. I’ve sine repaired a high voltage cable and been through all other wiring looms. Only fault code that remains is

21FOD5
Permanent

High-Voltage Battery Unit, Positive Terminal: Switch Contactor,
Contact Stuck Open Or Safety Fuse
Released.

In process of getting ista and Ediabas Tool 32. Do you think getting that code would sort it ??
Thanks in advance

Hi, sorry for the late reply. If you replaced the cable, the problem is most likely a matter of deleting the crash data. Since the wiring was damaged, the car thought it was in a collision.

[Ryan-999]

Originally Posted by Blackdog76

Hi, sorry for the late reply. If you replaced the cable, the problem is most likely a matter of deleting the crash data. Since the wiring was damaged, the car thought it was in a collision.

Thanks for that. Just dropped the battery pack and yes the 350a safety box fuse is blown too. So I got one ordered. Checked all 6 battery cells when in there too and all looking good that way. Not the easiest thing to do in the driveway but getting closer to a result I hope 👍

[Ryan-999]

Just an update. Dropped the HV battery and replaced the fuse. All battery packs tested good. Car now starts but 12v battery won’t charge. Ordered new 12v battery as maybe it’s cooked. Cheap battery tester said it was good but I have my doubts. Here’s hoping.