That is BS. They may not know the reason for the problem, but they can certainly see the problem. It's their fault they don't have the proper diagnostic tools. Is there no other dealer to whom you can take it?
2013 Volt - Intermittent charge issues
So here's a weird issue that I can't figure out. Periodically I will take a short drive in the morning (maybe 10km or so), then come home and plug in. Yellow light will stay on and I will get the message "Unable to charge" and my range is now down to 0. Turn the car on and get the "Service High Voltage System" and "Propulsion power reduced" messages. OK. Remove 12v negative, put it back, messages are gone, car will charge fine and range is back to where it should be, no issues.
I just replaced the 12v battery with a new one thinking that was the problem, but it still persists. This has happened to me twice in the past month, always in the morning. I'm wondering if it could be my L2 charger (using an EVSEUpgrade.com Nissan unit) or maybe the dreaded coolant sensor issue?
Dealer had "fixed" this in the winter by "reprogramming" the battery computer but I'm assuming they just reflashed it and it reset the errors.
The only codes I could get were from a check engine light that I normally receive when there are power quality issues with charging (P1E00 & P0D22). After I reset the 12v there are no codes and everything works fine.
Specs:2013 Volt, 106,000km, L2 charging (EVSEUpgrade.com Nissan unit @ 20amp) plugged into 30a dryer plug
Help!
I just replaced the 12v battery with a new one thinking that was the problem, but it still persists. This has happened to me twice in the past month, always in the morning. I'm wondering if it could be my L2 charger (using an EVSEUpgrade.com Nissan unit) or maybe the dreaded coolant sensor issue?
Dealer had "fixed" this in the winter by "reprogramming" the battery computer but I'm assuming they just reflashed it and it reset the errors.
The only codes I could get were from a check engine light that I normally receive when there are power quality issues with charging (P1E00 & P0D22). After I reset the 12v there are no codes and everything works fine.
Specs:2013 Volt, 106,000km, L2 charging (EVSEUpgrade.com Nissan unit @ 20amp) plugged into 30a dryer plug
Help!
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I completely agree with you there but I don't have much of a choice. I don't want to drive it and them come back at me saying I made it worse by driving it. I'm wondering if since I have a call into the GM customer service line they will cover a rental for me while they get it sorted - this just screams terrible customer service to me if not.That is BS. They may not know the reason for the problem, but they can certainly see the problem. It's their fault they don't have the proper diagnostic tools. Is there no other dealer to whom you can take it?
So I've been speaking with a GM Volt Ambassador about this and they seem to be on it. They've agreed to reimburse any gas expense I have because of the issue as well, which is nice.
In any case I've picked the car up and this is where things start to get a bit strange. So the MIL was on which was expected, but also I seemed to have about 80% battery range again. I drove home last night and left it sitting until my off-peak time and decided to try plugging it in. My understanding was due to the specific code (P0AF8) it locks out the vehicle charging to prevent any further voltage issues with the battery. Anyways, I plugged it in and low and behold it started to charge fine. It completed the charge and what do you know... the MIL has disappeared! And this was all without resetting the high-voltage system to clear any codes, so I am really confused at what is happening.
In any case the dealer will have their equipment on Friday and I will be leaving it with them to see what they can find out (they didn't have the high voltage gloves).
In any case I've picked the car up and this is where things start to get a bit strange. So the MIL was on which was expected, but also I seemed to have about 80% battery range again. I drove home last night and left it sitting until my off-peak time and decided to try plugging it in. My understanding was due to the specific code (P0AF8) it locks out the vehicle charging to prevent any further voltage issues with the battery. Anyways, I plugged it in and low and behold it started to charge fine. It completed the charge and what do you know... the MIL has disappeared! And this was all without resetting the high-voltage system to clear any codes, so I am really confused at what is happening.
In any case the dealer will have their equipment on Friday and I will be leaving it with them to see what they can find out (they didn't have the high voltage gloves).
They replaced the charge port yesterday - today leaving for work, car powers off and reboots while driving, lose all power steering/brake assist and a bunch of messages like Engine Not Available, Service Soon; Propulsion Power Reduced; Service Front Camera; Service Charging System, etc lit up. Turn car off and back on, everything is fine. Drive for a few hundred meters and boom, reboots again.
I don't know WTF they did to my car but I had it towed to the dealership.
Note: I don't think it would be a 12v battery issue, I replaced it last month with a brand new one.
EDIT: Uploaded a video of it happening: https://youtu.be/pGGK_IzGWcU
I don't know WTF they did to my car but I had it towed to the dealership.
Note: I don't think it would be a 12v battery issue, I replaced it last month with a brand new one.
EDIT: Uploaded a video of it happening: https://youtu.be/pGGK_IzGWcU
Well that is not a 12v battery issue.They replaced the charge port yesterday - today leaving for work, car powers off and reboots while driving, lose all power steering/brake assist and a bunch of messages like Engine Not Available, Service Soon; Propulsion Power Reduced; Service Front Camera; Service Charging System, etc lit up. Turn car off and back on, everything is fine. Drive for a few hundred meters and boom, reboots again.
I don't know WTF they did to my car but I had it towed to the dealership.
Note: I don't think it would be a 12v battery issue, I replaced it last month with a brand new one.
EDIT: Uploaded a video of it happening: https://youtu.be/pGGK_IzGWcU
may be a bad connections sowhere... dtc codes?
Turns out it was the 12v fuse block. When they disconnected it to replace the charge port it wasn't torqued back to spec and was loose, causing the intermittent loss of power. Makes sense, but crappy. I'm hoping GM will pick up the tab on the towing bill to get me there.
If the dealer didn't torque down the fuse block, why would you need to look to GM for the tow reimbursement? Sounds like a dealer liability to me. Am I missing something?Turns out it was the 12v fuse block. When they disconnected it to replace the charge port it wasn't torqued back to spec and was loose, causing the intermittent loss of power. Makes sense, but crappy. I'm hoping GM will pick up the tab on the towing bill to get me there.
So an update again... this morning back to the original error. Propulsion Power reduced, CEL (P0AF8) and just engine power. I turned the car on/off a few times and was able to get about 3km of range on a FULL charge (it was fully charged before I went to sleep).
I'm hoping WOT can chime in eventually since I remember reading a thread about this same error before.
I'm hoping WOT can chime in eventually since I remember reading a thread about this same error before.
An open charger fuse may cause P0AF8 to set.
I don't think that the dealer's Voltec Technician got an A in the course... just guessin'
Haha I don't think so either.I don't think that the dealer's Voltec Technician got an A in the course... just guessin'
So later that day it stopped saying unable to charge and I was able to charge to full. After doing a couple small trips and charge top ups the MIL is gone. Could this be a HBMC2 issue? It almost sounds like that since the way it can't seem to figure out how much battery is available after it gives the error.
My last visit to the dealer (yesterday) resulted in them saying the tech did not follow proper procedures after disconnecting the HV battery. There was apparently some procedure to "relearn" which involves reprogramming a bunch of computers including the HBMC2.
Anyways it seems to be fine ... for now. I'll keep this thread updated.
Anyways it seems to be fine ... for now. I'll keep this thread updated.
Happened again today while trying to top off at a public station. Same code p0af8. I'm at my wits end.
I hear ya with being at m wits end. I'm struggling so bad right now, I plug in, it goes green I walk away and then get the on star message on my phone "charge interruption" or something like that. ERR I'm getting the codes pod05 and another main one that is on the forum, check out my new thread "no charge saga" for the whole story. ERR how do we fix these issues, it has to be something little. And I don't have a dealer close enough that knows anything so right now I'm forced to dig around on here. Please keep updates comeing thank you, any change as of today/last night in charging?
It's been charging but the MIL is still on. The dealer actually had it all day yesterday and took everything apart, called GM TAC and had an engineer on the phone and they found an issue with the onboard charging unit - they have ordered a replacement that should be here in 2-3 days. I'm really hoping this fixes it but... I won't hold my breath.I hear ya with being at m wits end. I'm struggling so bad right now, I plug in, it goes green I walk away and then get the on star message on my phone "charge interruption" or something like that. ERR I'm getting the codes pod05 and another main one that is on the forum, check out my new thread "no charge saga" for the whole story. ERR how do we fix these issues, it has to be something little. And I don't have a dealer close enough that knows anything so right now I'm forced to dig around on here. Please keep updates comeing thank you, any change as of today/last night in charging?
I've got my fingers crossed for you. The Volt is really a fine car that is usually trouble-free. When it goes bad, it is hard to diagnose by someone not trained in doing Voltec repair... it's a new animal. That's why Volts must be worked on only by trained technicians. The Volt Technician has to have native intelligence and be able to think things through, IMHO.
Good luck to you and let us know how things turn out with your problem.
Good luck to you and let us know how things turn out with your problem.
Thanks - and yeah, I agree. The tech working on my car is a new Volt certified tech so he is going through all of their processes step by step and not really doing any critical thinking.I've got my fingers crossed for you. The Volt is really a fine car that is usually trouble-free. When it goes bad, it is hard to diagnose by someone not trained in doing Voltec repair... it's a new animal. That's why Volts must be worked on only by trained technicians. The Volt Technician has to have native intelligence and be able to think things through, IMHO.
Good luck to you and let us know how things turn out with your problem.
What I am wondering though - and maybe someone with a little more electrical knowledge can chime in - so he tested the resistance values from the cable that connects the onboard charger to the battery, it was supposed to read infinite (or no) resistance, but one of the legs was 52k ohms - now, this could very well be the onboard charger, but it could also be the HV cable going TO the charger. They are not replacing that cable as far as I am aware. I was actually thinking of just paying the $150 CAD for the cable and have them replace it at the same time just to make sure there are no more issues.
Thoughts?
I wouldn't do that. Things might end up with the finding that something else entirely different has caused the problem and then you would have spent many Loonies for nothing. Let things take their course.Thanks - and yeah, I agree. The tech working on my car is a new Volt certified tech so he is going through all of their processes step by step and not really doing any critical thinking.
What I am wondering though - and maybe someone with a little more electrical knowledge can chime in - so he tested the resistance values from the cable that connects the onboard charger to the battery, it was supposed to read infinite (or no) resistance, but one of the legs was 52k ohms - now, this could very well be the onboard charger, but it could also be the HV cable going TO the charger. They are not replacing that cable as far as I am aware. I was actually thinking of just paying the $150 CAD for the cable and have them replace it at the same time just to make sure there are no more issues.
Thoughts?
Thanks and yeah, that sounds like a plan. Still waiting for the part but it's been charging fine the past few days, not to jinx it at all. I'm going to ask them to test the resistances again after replacing the charger just to make sure it's not the cable. The tech who is working on my car is a cool guy so now that I know him I don't think he will have a problem doing it.I wouldn't do that. Things might end up with the finding that something else entirely different has caused the problem and then you would have spent many Loonies for nothing. Let things take their course.
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