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Discussion Starter · #1 · (Edited)
Obviously all driver side airbags went off, the HV Service Workshop and Drive Sys Engine off messages are both displayed.

I would like to be able to at least put the car into N so I can move it around on my property and get it close to my charging station.

I’m keeping the 12v battery charged and the HV is at 82% after the wreck and being at the evaluation company for 11 days. I would like to keep the HV pack alive with the hopes of playing with it or selling it and other parts off.

Can these codes be cleared by the Star or Autel machines out there, since it was a major accident? I see other posts clear them for turning the key on while the HV was disconnected but nothing regarding a crash.

Thank you
Bobbie


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Same situation with my salvage Spark_EV. The user tool of choice to "liberate" that car is an inexpensive VCX NANO 'vehicle communication interface' which I now have and will bring to that location as soon as I dare to flee quarantine and make that trip. If a bag blows the system is shut off requiring codes to be cleared, as you know. Chevy dealer requires steel body to be restored fully before they will clear codes. MB probably the same deal. You need to find user experience on wrecked ED/EQ; lots of luck finding it in this forum. In any event I will bring cash and a rollback if you decide to throw in the towel.
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Obviously all driver side airbags went off, the HV Service Workshop and Drive Sys Engine off messages are both displayed.

I would like to be able to at least put the car into N so I can move it around on my property and get it close to my charging station.

I’m keeping the 12v battery charged and the HV is at 82% after the wreck and being at the evaluation company for 11 days. I would like to keep the HV pack alive with the hopes of playing with it or selling it and other parts off.

Can these codes be cleared by the Star or Autel machines out there, since it was a major accident? I see other posts clear them for turning the key on while the HV was disconnected but nothing regarding a crash.

Thank you
Bobbie


Sent from my iPhone using Tapatalk
In addition to clearing codes, a pyrofuse - located under the drivers-side seat, under the carpet, needs to be replaced before the car can be charged or moved.
 

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I haven't dealt with an airbags deployed car so my experiences might be different, but somewhat relevant.. I can clear codes with my cheap autel hd200/ap200 on a car showing hv system workshop dash message, and shift into neutral, but the autel won't clear codes that are still a persisting issue. C3 STAR same thing, won't clear more critical codes that are still an issue. To shift to neutral you might also try clearing codes with any generic to mid range scanner. Or try disconnecting the 12v battery, wait a few minutes, reconnecting, and trying to shift immediately as soon as you turn on key - from what I recall that's all I had to do (foot needs to be on brake to shift as well I believe) on a car with hv workshop message. The autel does see all systems and have some advanced options and live data though.

Most if not nearly all airbags deployed cars in auctions and junkyards seem to have a dead hv battery, (typically sitting 3+ months), it's not clear what the timeline is like for fully discharging but the clock is probably ticking in your case. I would be getting the 12v on a trickle charger asap or periodic charging the 12v battery with another car (jumper cables-ED key off) as a minimum..

I'm not sure what impact the (under dash) hv disconnect has but don't turn on keys when it's disconnected, as that might cause additional error codes.
I believe there is a feature using MB STAR/Xentry where you can turn off/disconnect the 12v battery and/or tell the hv battery to go into long term storage, but I can't currently find the info on this. Again it's not clear exactly how this would play with your airbags deployed scenario, it's possible it could still discharge the pack.

If you can verify the pack is still holding a charge, an option to consider might be disconnecting all the battery connectors under the car, not too hard to do once it's on stands. I would think (but don't know) this might prevent the pack from discharging.

I would appreciate anyone sharing other experiences/comments, it would be nice to get a better idea on "proper approach" to preserve the hv pack, and a future resource for anyone in the same boat. I believe there were at least 1 or 2 other people posting online about working on airbags deployed cars at some point but I can't recall any that came back to share a solution/final details etc. If there is any relevant info out there I'd be interested in seeing it.
 

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2014 Chevy Spark_EV airbags deploy and 12v battery drains immediately as the defrost blower is forced ON and there is no way for user to stop it unless by disconnecting the 12v battery. This is apparently a safety measure since with a dead 12v there is no easy way to accidentally contact the 360v. Properly one would disconnect the 12v neg right away and also lift up the rear seat and remove the hv disconnect cap. Then the hv battery can sit 'forever' as I have not noticed any leakage thru BMS or whatever on my 2 salvage Sparks.

How closely does the Smart_EV follow this sensible scheme (we need to know)?
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