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Re: Hi everyone....have two 2012 I-Mievs.....need help....

Posted: Fri Oct 09, 2020 10:53 am
by dweaver
Hi kiev,

It works.

Took a trip. Started right back up.

I'm charging it up now. Noticed after charging the main battery for about a half hour, 12V jumped to 13.08. It works and drives great.

How did you know from the start....there's nothing wrong with the car and that it was likely the 12V battery? Did I give you enough dealer information? :lol:

I would assume the stored SRS codes were from when they pulled the drivers seat to replace the main battery under warranty last year.

Wow....what an experience. I never wanted to know this much about an EV. I guess now is a good time to learn though.

You da man. I am impressed.

Thank you.

How can I help the forum? I could join and post pics?

Send me a PM please.

Dale

Re: Hi everyone....have two 2012 I-Mievs.....need help....

Posted: Fri Oct 09, 2020 11:50 am
by Don
I would hazard to guess that over the years here, whenever we read about really weird, unusual problems with our iMiEV's, at least 90% of the time it ends up being a problem caused by the 12 volt battery - It's almost to the point where you can just advise "If your battery is more than 3 or 4 years old, just replace it with a new one and see if that doesn't solve your problem" . . . . and, usually it does

The OEM batteries were pretty darned good - We didn't see very many of these problems until 2017 or later, when the original batteries were beginning to get old. Since then, many lower quality batteries have been installed by owners, largely because getting another OEM battery from the dealer is so expensive - An aftermarket battery can begin to cause problems when it's only 2 or 3 years old. Suffice it to say, the car is very particular about the 12 volt battery and it's been the cause of literally dozens of unusual problems

Don

Re: Hi everyone....have two 2012 I-Mievs.....need help....

Posted: Sat Oct 10, 2020 2:41 pm
by dweaver
Thanks Don, you guys and gals are the greatest.

;)

Re: Hi everyone....have two 2012 I-Mievs.....need help....

Posted: Wed Oct 14, 2020 2:04 pm
by dweaver
Well, it's been one week. It's all good. It works. I can't believe it but it works.

jray, my wife said I should go buy myself something. :lol:

I'm going to drive silver over to the dealer and sit there outside the garage and service dept.. and let it evolve. I want to see what they say and how they respond. I'm going to be positive about it and tell them it's fixed by an icarsoft i909 and new 12V battery, and see what happens.

:D

Thanks all.
Dale

Re: Hi everyone....have two 2012 I-Mievs.....need help....

Posted: Fri Oct 16, 2020 7:34 am
by dweaver
Darn....it happened again. My wife drove over to my daughters. Wouldn't start, i light on.

I went over, cleared code, started up and drove home.

At home, 12V aux checked at 12.77.....all good. Raspberry usually reads 12.82.

I started it right back up.

It's intermittent.

I decided to start and shut off several times in a row to see what would happen. On about the 5th time, even after the relays clicked off, it failed with the i light warning. I cleared it, stated right back up.

It's pretty frustrating. But, at least I'm not getting towed. :lol:

I don't know what to think or try.

Any ideas?

Thanks,
Dale

Re: Hi everyone....have two 2012 I-Mievs.....need help....

Posted: Fri Oct 16, 2020 10:57 am
by DBMandrake
kiev wrote:yea i've always thought the cost of the scanner was like one visit to the dealer, and anytime it can be used to save a trip is money staying in your wallet.

i don't think that SRS codes can be cleared for some reason, likely liability and safety concerns. There is lots of airbags in these cars. Did you have the airbag recall work done recently?

Might just be a limitation of iCarsoft - I've cleared Airbag fault codes with Diagbox before on my Ion after setting them due to removing the front left seat to get at the isolator plug. (Since you have to unplug the airbags in the seat to remove the seat...)

Re: Hi everyone....have two 2012 I-Mievs.....need help....

Posted: Fri Oct 16, 2020 1:49 pm
by dweaver
I drove it some more. Starts right back up.

I just started it and shut it down about 50 times in a row.

kiev, when it failed on me yesterday, I heard all of the relay clicking and I believe contactors also, then it failed, wouldn't go to ready, and set the i light.

Maybe it's failing in the MCU?

Thanks,

Dale

Re: Hi everyone....have two 2012 I-Mievs.....need help....

Posted: Mon Oct 19, 2020 11:30 am
by jray3
Congrats Dale. Well, it does seem that spouses are sometimes the hardest of all to impress. Whether you go buy yourself something or await higher returns, she knows you just saved a bundle!

Re: Hi everyone....have two 2012 I-Mievs.....need help....

Posted: Mon Oct 19, 2020 12:27 pm
by kiev
dweaver wrote: ...

At home, 12V aux checked at 12.77.....all good. Raspberry usually reads 12.82.

I started it right back up.

It's intermittent.

I decided to start and shut off several times in a row to see what would happen. On about the 5th time, even after the relays clicked off, it failed with the i light warning. I cleared it, stated right back up.


Remind me about what code is set that you are clearing.

Sounds to me that the 12V aux is not getting fully charged, especially when you do the quick ON/OFF. That's the clue that it just doesn't hold it's mud when after 5 quick starts it laid down on you.

You might want to check the voltage after starting to see if it is being charged at 14.4. Maybe the DC/DC converter is having an issue.

But the real remedy is to charge the aux. But if it ever got left discharged for even 3 days it can sulfate the plates and cause permanent damage. There is a whole section on 12V care in the OBC Troubleshooting thread, post #2.

i use a Yuasa1A charger that will take it up to 14.4, then drops the current back so it doesn't overcharge. Did you see the picture of the voltage on my aux--that thing is over 3 yrs old.

Re: Hi everyone....have two 2012 I-Mievs.....need help....

Posted: Sun Oct 25, 2020 7:54 am
by dweaver
Hi kiev, It starts right up everyday. no more failures.

So....I checked the aux after driving the other day, it was 13.10. Its charging fine.

I checked while on ready....14.42.

The problem was intermittent....whatever it was.

Maybe a relay? If it fails again....I could pull the relays and put a meter on them. Maybe contactors? I don't know.

The DTC was P1A15.

Thanks,
Dale