Thank you for sharing this important information into the public space. Complicated vehicles are only complicated when you don't have the correct information.

P0AFA is terminal. It means one of lithium cells dipped below treshold. You can erase it and keep driving in mountain mode bit sooner or later it will fail completly.

You're the Man!!! Fixed my wife's 2016 volt. Your advice worked like a charm!

@AutoScholarwithMrB

5 ай бұрын

Glad to help!

I hate to break it to you, but the HV battery is not fine. Just you wait. 1000 or less from when you made this video, this volt will leave you stranded on the side of the road. The error you experienced is called Low Voltage lockout. When one of the 96 modules has an undervoltage it locks up the car from draining the battery further and damaging more cells. This happens when one of the cells can;t charge/discharge at the same rate as the rest of the cells. Anyways, when it happens again, just unlock the car by clearing the two codes and drive in Mountain mode from that day forward. Should keep you on the road for another year or so before you need a full HV battery replacement.

@CristoSalva2024

5 ай бұрын

What is of description of Code your talking about thanks

@AustinEVonly

5 ай бұрын

kzread.info/dash/bejne/iWZ1trKBitTSp7Q.htmlsi=1tlz4Jshq6Pz4P8v​@@CristoSalva2024

@conflictedshotz8412

Ай бұрын

Do you know how to put it in mountain mode??

could you make a video on how to reprogram the instrument cluster? i tried the screen replace but did not work. New cluster works but has the dashes for miles. I see how to do it in the service manual but I am a little worried to do it

Thank you for these educational videos. I had my spark EV 2015 towed yesterday and unable to charge. I am recharging my12v battery first!

I’m just learning how to diagnose my hybrid volt battery. In one reading at 20 SOC with 1 mile left and the heat on blast my MV was 120, but when I left the car at rest for a half hour then restart with the heat on the blast, MV was 16. Which would you say is the right diagnosis?

Great video, thanks for sharing! I just discovered your channel, Good stuff! I'm looking forward to more videos on the volt.

This was so helpful. Yeah my batteries low is showing the engine light on it was showing like my idol wouldn’t go down my gas mileage even with a full battery charge was at 19 miles a gallon just on and on and on I took it to the shop Wilson, Chevrolet on Aurora in Seattle North Seattle, and they told me that the battery was good. It was just had a low charge on it. Keep an eye on it and, my number three cylinder spark plug was not working right so I’m getting it charge on it and I’m getting spark plugs redone should be done every hundred thousand miles as a used car you were so so helpful. Thank you so much.

Do you know what diag tool I can buy that can plug into the second OBD2 CAN slot under the passenger side, its the HV energy management CAN. Also whats the model of your zeus?

To put it bluntly, u really know your shit! Amazing how knowledgable u are. I knew this on the Prius in the past. I MISS auto manuals you could buy from Toyota. I had one for my 97 Camry, a little over $100 for 2 big manuals. What can a DIY use? What state is your shop located? ANOTHER great video!! Looking forward to your next! 👍

@AutoScholarwithMrB

11 ай бұрын

If you see in the description, I have a link to a site you can buy a downloaded manual with. They have just about every car out there and it is cheaper than the paper manual. Also I am in the southeast US, but I am an instructor at a college and don’t take outside jobs anymore. Thanks so much for the compliment!

Thank you for helping and sharing your knowledge with us , I have 2012 volt and code P0AC4 and when I put in D and hit the gas the car will keep jumping, I hope you have solution for me bc I can't afford taking it back to the dealership, thanks

Thanks I learned a lot,

Great car, also the Ampera

Mr B my 2011 Volt wont charge, dealer says sensor on charger door is bad. Is this a DYI fix as they want $800 to fix . does this require changing the charger plug mechanism, or is the sensor a separate replacement? ( don't see any videos on this) Not sure it's something I can do ( but I am very handy). Appreciate a reply...

2017 Cadillac CT6 PHEV and am getting an instrument cluster trouble code (yellow battery with a slash line through it) and I cannot seem to find anywhere what this means. Checked owners manual, service manual, and google and nothing. Can you tell me what this means? With this I am experiencing a high voltage lockout. I replaced the 12V voltage battery and reset the HPCM2, the vehicle started and I test drove the car and parked it. Went to start it again and received the same HV lockout. HPCM@ codes are all circuit low voltage codes. Any idea as to what this could be or what my next steps should be? Thanks for any info that you can provide.

I replace my 12v battery to. Everything is fine now. The only thing now, when i put on the display to see the battery pack is loading, directly the radio goes on. How can i Repair this....

I would like to see the look on the face of whoever you bought the car from after they see this video and it was only a 12v battery replacement.

@danwat1234

4 ай бұрын

That's my goal too, bought mine off eBay. High voltage battery reports great health just need to clear these darn special codes.

Good video

@AutoScholarwithMrB

9 ай бұрын

Thanks for watching!

Thank you for all your work, but we hope that you will start broadcasting videos about electric cars

What's amazing (and sad) is the dealership couldn't figure that out. So the question is if I don't have a $5 -$15,000 scan tool is there a more reasonably priced one available?

@AutoScholarwithMrB

11 ай бұрын

I am not sure, as most of my experience lies in extremely cheap or extremely expensive scan tools. The HV codes should be in a function menu for the respective HV modules. If you find any, let me know and I will put it in the description. Also, there is the option of replacing the 12v battery and getting it towed to someone that has one. Probably a much cheaper option than the dealer. Thanks for watching!

@sporktek

7 ай бұрын

It's probably less that the dealership *couldn't* figure this out, but that they likely wouldn't. I've read countless accounts from people who have taken their EVs or hybrids to shops, dealers included, who just keep the car for a day, probably without even looking at it, and go back to the customer to tell them it's something not worth fixing. It all comes from the wide prevalence of service techs who are just deeply offended that these kinds of cars even exist. There's still this push to punish early adopters and move them back to gas/gas only burning cars. I think they feel like they're sending a message that EVs are a bad idea by essentially withholding repair service. Same kind of thing happened decades ago, especially with small town mechanics, with regard to Japanese import vehicles. Old timers hated them and the people that bought them.

@AutoScholarwithMrB

7 ай бұрын

@sporktek I have also heard that happening as well. That’s why I think cars like this might be a good deal if you can find them this cheap. It is always a gamble however.

@evibes512

3 ай бұрын

This is an old thread but I use a VXDIAG VCX Nano GDS2 and Tech2Win for GM from Amazon. There may be other options, but this has worked well for me on my 2014 Volt. You can reprogram modules/reset codes. Was able to fix a no charge condition from the battery coolant going low, reset those HV codes. Using the AC Delco 1 month subscription, I was able to update all the modules in the car to the latest as well.

@AutoScholarwithMrB

3 ай бұрын

@evibes512 good tip, thank you!

where is ur shop ? thks .

I have a 2013 volt similar codes. When I try to clear DTC based on your video it scans on my Zeus for a very long time without any give but my voltage shows 11.5v..... can you comment?

@AutoScholarwithMrB

9 ай бұрын

Voltage is definitely low. Is there any chance the 12v battery is low or faulty?

So what's the least expensive tool i can buy or rent that can do full 'clear secured high voltage DTCs'? I am trying a VCXnano but GDS2 software keeps complaining of 'no valid lease found'. I have P0606 probably caused by 12V battery getting dead cell confusing the heck out of the ECUs.

@AutoScholarwithMrB

4 ай бұрын

I think some of the lower level Autels should be able to. My 906 can. It’s hard to say because I normally use my Snap On Zeus for things like this.

@danwat1234

4 ай бұрын

@@AutoScholarwithMrB I attempted to use my VCXnano dongle and cracked copy of GDS2, it seems to interface with the modules fine I can manipulate and see everything but clearing secured DTC in hybrid computer #2 it immediately came back

Mr. B, where are you located and are you willing to diagnose and work on a gen 2 Volt Premier?

@AutoScholarwithMrB

8 ай бұрын

I am an instructor at a tech school in Augusta, GA. We are booked up until a month after Christmas unfortunately.

I have a 2012 volt and I’ve put 2 brand new 12 volt batteries into the car but something continues to completely drain them. The car will start and run but shortly after the entire 12 volt battery dies. What do you think could be causing this problem?

@sparkfire1223

Ай бұрын

Onstar module pull the fuse

I am in Mexico and no dealership near me wants to take on the repairs of a chevy volt 2017 model which I own. I was away for 5 months and when I arrived back the 12 v battery was dead. I replaced it and it worked for one day. The next day, it stopped moving in drive or reverse mode. The battery seems to be fine. Is it possible for you to help me remotely. Happy to pay for your time.

@carlenasp

4 ай бұрын

You could have gotten a very low and bad agm battery though it was sold to you as new. We got a battery new installed from dealer went bad in a month

#1 Will an AUTEL MAXISCAN MS309 give proper codes for a 2013 Volt? #2 Will the solutions you generously share for your 2011 Volt, work on a 2013 Volt? Thank you for these needed educational videos. Well done! 👏

@AutoScholarwithMrB

9 ай бұрын

My Autel 906 would not work on this. Also I believe a 2013 is the same as mine. Thanks for watching!

@stlpnkfloyd4961

9 ай бұрын

Thank you! @@AutoScholarwithMrB

My volt has a drive module problem anybody have an idea?

hope you put in a 12volt Gel battery??

@AutoScholarwithMrB

6 ай бұрын

I put in the exact AC Delco battery this car requires, and it was the AGM.

You need the GM software subscription correct? and which one?

@AutoScholarwithMrB

3 ай бұрын

I just used my Snap On scan tool, no GM software needed

@EricLumiereMusic

3 ай бұрын

@@AutoScholarwithMrB zeus is like 4k right? i dont think a regular elm can clear the secured codes...do you know? what software is it running

@AutoScholarwithMrB

3 ай бұрын

@@EricLumiereMusic I think my much cheaper Autel 906 can clear it as well.

@EricLumiereMusic

3 ай бұрын

@@AutoScholarwithMrB thanks that's still too much for me. car is maybe worth $4k as it is. im suprised you did it without GM software that's how it seems everyone else has done it from everything I've read. DIY w vcx nano and gds2 subscription or chevy dealership...

@nbagoats4819

3 ай бұрын

@@EricLumiereMusic I bought a scanner for $49.99 from Amazon and it was able to pick up the code and clear it out. Car works fine.

Amazing the dealership was so stupid to not check the 12V first! That is beyond ridiculous in my mind.

Is it alright to address you as Mr. B? Have you produced a video concerning the Reduced Propulsion Warning, and how to fix it?

@AutoScholarwithMrB

9 ай бұрын

Mr. B is fine, and I have not had that issue with this car. Sorry!

@danwat1234

4 ай бұрын

Don't let the car go down to 0 miles on battery before shutting it off. Keep is at 3 miles remaining or higher as high voltage battery ages this is more important

Did the codes come back ?

@AutoScholarwithMrB

Ай бұрын

Not so far.

@sparkfire1223

Ай бұрын

@@AutoScholarwithMrB thats awesome

I was thinking of buying a used volt...looks very risky

@nbagoats4819

3 ай бұрын

Same here. I've done ALOT of research. Car seems like a dream when working but is nothing more than a gigantic paperweight waiting to happen. I'm still twidling my fingers on whether or not to chance it.

I had 52 😅🤣🤣🤣