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

Tue Oct 06, 2020 2:11 pm

Hi kiev, Yes....pulled the fuses.

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

Tue Oct 06, 2020 2:14 pm

Sure, and be sure to listen for relays and contactors clicking in the pack when you go to start. We have a thread for the P1A15 DTC, which is due to the "condenser" or big capacitor in the MCU not reaching the required voltage in an expected time.
viewtopic.php?f=23&t=4225
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dweaver
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Re: Hi everyone....have two 2012 I-Mievs.....need help....

Tue Oct 06, 2020 2:30 pm

Hi kiev, I can't remove the fault code. Also, the i909 won't let me use the ob2diagnose optional mode, only the diagnose mode. ?

Anyway, I don't hear any relays, and the car won't charge or start

The only thing I haven't tried that I could try would be to switch aux. batteries.

Maybe it is the MCU? I did scan it though and no DTC. ?

Thanks.

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

Tue Oct 06, 2020 2:58 pm

Okay you can use the i909 to read the voltage of the Main Pack and also the Min and Max Cell voltage. It should all be okay since you have a replacement pack, but doesn't hurt to check.

In addition there are DataStream Items that can be checked for the status of the main contactors, whether they are being commanded and if they respond and if they are welded. i think that is in the DS list for the EV-ECU.

The OBDII Diagnose menu is used to determine which OBD protocol the car uses; it is not used or needed.

It will read the 12V aux battery voltage for you but i don't recall where that DI is located.

i don't understand when you say it won't clear the P1A15 code? There is a menu item to read the codes, then another to clear the codes.
Last edited by kiev on Tue Oct 06, 2020 4:14 pm, edited 3 times in total.
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dweaver
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Joined: Tue Sep 29, 2020 4:05 pm

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

Tue Oct 06, 2020 3:11 pm

Hi kiev, thanks.

The i909 gives me the option to delete the set code by checking yes or no, but there isn't any yes or no button. I just press OK and it says it's deleted.....but it's still there. Maybe because it's a serious permanent fault?

How would I put my VIN into a replacement MCU?

I'll keep trying.

Thanks.

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

Tue Oct 06, 2020 3:16 pm

The Key must be in ON or READY to run the scanner.

Once you get thru the select make model year, then press okay while on the Diagnose menu item.

Then Manual Select, and Read DataSteam.

The 12V aux Voltage is read in the ETACS DataStream Item List.

Welded Contactors are in the EV-ECU list.

Cell Min Max Voltages are in the BMU list.

To select items to read:
Select the ECU from the list,
Then scroll thu the list and press OK to get a whole page or scroll down to just the one you want, then press OK, use the right and left arrow to move to next page. When done selecting what you want to see, then press ESC to activate reading the data.

i think to clear a code, you use this same select and activate sequence:
Select clear code, then move down or left or right button to the one to the one you want to clear and press OK to select it, then press ESC to activate the clear command, maybe press OK to activate? i'm not 100% sure as i had no codes to clear to test it.
kiev = kenny's innovative electric vehicle

dweaver
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Joined: Tue Sep 29, 2020 4:05 pm

I'm driving it!!!!

Wed Oct 07, 2020 7:39 am

Ok, I'm not too excited yet. Not celebrating yet.

I went to work with the i909 this morning. Comparing readings from Silver to Raspberry.

I cleared the i code. Light went off. I thought, after checking everything and comparing everything, all numbers between silver and raspberry....there was nothing wrong. I mean I went through everything....taking pics of readings with my phone.

I kept thinking what kiev kept saying....nothing is wrong with the car.

I sat there in silver looking at a normal lit up dash....and wondered....nah.....couldn't be....

Turned the key....ding ding ding....

I took off driving.

But....the SRS light is on. That wasn't on before.

Not sure what is going on there....but I am pretty upset about the dealer and $4750 estimate. I had to pay towing back home and a $120 diagnostic fee for worthless diagnostics.....and to be told.....no codes were set.

But I'm scared to drive it far.

On to the SRS light.

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

Wed Oct 07, 2020 8:09 am

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?

Most likely is wiring or connector issue (rodent chewing wires or corrosion of contacts in connector, etc), but that can be difficult and a pain to find. At least you know there is no need to $pend on a new MCU.
kiev = kenny's innovative electric vehicle

dweaver
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Posts: 36
Joined: Tue Sep 29, 2020 4:05 pm

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

Wed Oct 07, 2020 9:01 am

kiev, forgot to mention it charges too.

Supposedly, they already did an SRS recall.....years ago.

I am wondering if the 12V aux. was low and caused all of these problems. We don't drive it that much.

I dread taking it back to that dealer. I want a refund for diagnostic work and towing.

I'm going to contact the owner....I know her. I have to make sure nothing is seriously wrong though.

I just don't understand.....why would they tell me no codes set?....and didn't print any on the receipt.....and told me ac to dc inverter for $4750.

I hate to think the worst.....could be just incompetence.

Thanks again.

I'll keep you all updated

Dale

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

Wed Oct 07, 2020 9:26 am

Don't know if it is worth hassling them. They probably did read the P1A15 code, which indicates the solution is to replace the MCU. The service manager doesn't know anything about codes or ecus, and just reported what the mechanic found--bad MCU. It sounds like the SM is not detail-oriented and prone to make up stuff too to cover his butt. Can't get a consistent story from SM every time you talk to them.

What caused the initial P1A15? likely a weak aux battery (since it wasn't being driven regularly or kept on a Yuasa trickle charger). i tested many and Yuasa is the only one to get, the rest are crap.
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