hubermatos
Posts: 17
Joined: Tue Jan 15, 2019 5:26 am

Re: No READY. P1A15 error. Condenser charge timeout.

Wed Sep 16, 2020 7:26 am

The working car is from 2018.
The bad one from 2013.

The vorking one has one less battery pack in it.

The new ones computer doesent check something that the broken ones does... But what?

I will take down the battery pack and check the inside for any visible problems. What should I check?

Lic
Posts: 75
Joined: Mon Dec 28, 2015 2:11 pm
Location: Canada

Re: No READY. P1A15 error. Condenser charge timeout.

Thu Sep 17, 2020 8:29 pm

I don't see any sense to open battery, so I don't know what you need to check.

hubermatos
Posts: 17
Joined: Tue Jan 15, 2019 5:26 am

Re: No READY. P1A15 error. Condenser charge timeout.

Fri Sep 18, 2020 5:03 am

Did everything I could, changed everything I had to change. Nothing.

Where do you think I should search?

hubermatos
Posts: 17
Joined: Tue Jan 15, 2019 5:26 am

Re: No READY. P1A15 error. Condenser charge timeout.

Fri Sep 18, 2020 11:00 pm

So. Yesterday, I took out som parts of both of the cars traction batteries, swapped them, still no ready light. They pack is ok, it was a bit smelly, like burned electric parts, but we found nothing suspicious.

So we moved on. After some research, on a German forum, I found some interesting information... There is somewhere near the condenser a component that measures the current, wich with time weakens, and puts the car in fail mode. I will try to find out where and what. This would be an explication that the car works well whit the new cars computer but doesn't whit the original. They maybe lowered some values.

So my next move is to write the new computers data on the old one, lets see. In the meantime I will try to find the mysterious failong part.

coulomb
Posts: 226
Joined: Sun Jun 10, 2018 8:32 pm
Location: Brisbane, Australia

Re: No READY. P1A15 error. Condenser charge timeout.

Sat Sep 19, 2020 3:24 am

hubermatos wrote: on a German forum, I found some interesting information... There is somewhere near the condenser a component that measures the current, wich with time weakens, and puts the car in fail mode.

I'm quite interested in iMiEV current sensors at the moment. Can you post a link to that comment? Or at least name the forum?

I see two current sensors on two of the motor 3-phase outputs, but so far no current sensors on the DC side.

kiev
Posts: 1257
Joined: Sun May 03, 2015 7:15 am
Location: The Heart o' Dixie
Contact: Website

Re: No READY. P1A15 error. Condenser charge timeout.

Sat Sep 19, 2020 6:03 am

hubermatos wrote:...They pack is ok, it was a bit smelly, like burned electric parts, but we found nothing suspicious.


You never answered my previous question about the swapping of the EV-ECU, so what we got here is a failure to communicate. Maybe gooogle translate is needed here, what is your preferred language?

With the old EVECU the main contactors were not being energized, but with an EVECU swap from the working car, then the car went to READY? [That would mean the contactors were getting energized properly].

You then ordered a used ECU from Poland which did not energize the contactors, but did you test it in the working car and get READY? The unit from Poland may be defective but you can't know for sure without a test to verify it is known to be good. There will be a VIN error when trying to do a swap that will likely prevent a car from going to READY; the EVECU is not swappable without reprogramming of the VIN.

Concerning the pack inspection:
Did you inspect the pre-charge resistor near the main contactors? There has been at least one reported case of failure of that resistor, and it would surely smell like burned electric parts if it overheated.

What about the cooling fan inside the pack, not sure if it has brushes or not, but motor brushes can wear and cause an overheating condition and smelly burnt wire too.

Another item might be the coils of the contactors. They should be rated to handle continuous operation but you never know.

The contacts of the contactors provide an ultra-low resistance path when ON. It would be difficult to measure that low without special equipment, but if the surface was damaged it could affect the voltage to the big condenser in the MCU.

If something overheated to cause a smell, then look for discolored wiring also.
kiev = kenny's innovative electric vehicle

hubermatos
Posts: 17
Joined: Tue Jan 15, 2019 5:26 am

Re: No READY. P1A15 error. Condenser charge timeout.

Mon Sep 21, 2020 2:26 am

coulomb wrote:
hubermatos wrote: on a German forum, I found some interesting information... There is somewhere near the condenser a component that measures the current, wich with time weakens, and puts the car in fail mode.

I'm quite interested in iMiEV current sensors at the moment. Can you post a link to that comment? Or at least name the forum?

I see two current sensors on two of the motor 3-phase outputs, but so far no current sensors on the DC side.


Hello coulomb,

https://www.goingelectric.de/forum/view ... ilit=P1A15

This is the link to the german forum, elektrozitrone has the solution.
I can speak German, so I tried to ask him for the solution, but no answer yet.

hubermatos
Posts: 17
Joined: Tue Jan 15, 2019 5:26 am

Re: No READY. P1A15 error. Condenser charge timeout.

Mon Sep 21, 2020 2:40 am

kiev wrote:
hubermatos wrote:...They pack is ok, it was a bit smelly, like burned electric parts, but we found nothing suspicious.


You never answered my previous question about the swapping of the EV-ECU, so what we got here is a failure to communicate. Maybe gooogle translate is needed here, what is your preferred language?

I used my phone to answer, and to ask, while I was working on the car. I am now in front of the computer, so I have time to write my answers. Please do not insult me with google translate, I speak German English and Romanian, my mother tongue is Hungarian.

With the old EVECU the main contactors were not being energized, but with an EVECU swap from the working car, then the car went to READY? [That would mean the contactors were getting energized properly].
Yes it is true.

You then ordered a used ECU from Poland which did not energize the contactors, but did you test it in the working car and get READY? The unit from Poland may be defective but you can't know for sure without a test to verify it is known to be good. There will be a VIN error when trying to do a swap that will likely prevent a car from going to READY; the EVECU is not swappable without reprogramming of the VIN.

The working car is from 2018, it has one pack less in the traction battery compartment, so neider of the old ones work with the new car, it cannot read the battery charging state, don`t ask me why. I think these EVECU's dont really brake, I haven't really seen this kind of a problem at any of the forums I visited. The vin error got corrected by me with lexia, no problem there.

Concerning the pack inspection:
Did you inspect the pre-charge resistor near the main contactors? There has been at least one reported case of failure of that resistor, and it would surely smell like burned electric parts if it overheated.
Yes, I swapped it from the working car, no luck.

What about the cooling fan inside the pack, not sure if it has brushes or not, but motor brushes can wear and cause an overheating condition and smelly burnt wire too.
Did not check.

Another item might be the coils of the contactors. They should be rated to handle continuous operation but you never know.

The contacts of the contactors provide an ultra-low resistance path when ON. It would be difficult to measure that low without special equipment, but if the surface was damaged it could affect the voltage to the big condenser in the MCU.

I looked very carefully, sniffed around like a houd, but nothing.

If something overheated to cause a smell, then look for discolored wiring also.

hubermatos
Posts: 17
Joined: Tue Jan 15, 2019 5:26 am

Re: No READY. P1A15 error. Condenser charge timeout.

Mon Sep 21, 2020 2:46 am

But the good news is:

I had an idea...
What if?
I took the rom of the working car and wrote into the old ones.
Car jumps into ready mode, no errors with lexia, it charges.

Today will take the car on a ride, to see how it works on a long term.

I will post the rom, if someone has this problem, it can be solved until we figure out where the current sensor is hiding.

I know, this solution is not good. But it solves temporarily my problem.

Thank you all for your help, let the search continue.

kiev
Posts: 1257
Joined: Sun May 03, 2015 7:15 am
Location: The Heart o' Dixie
Contact: Website

Re: No READY. P1A15 error. Condenser charge timeout.

Mon Sep 21, 2020 7:49 am

Sorry i did not mean to offend about translation--i had a hard time to understand, but it makes sense that you were on the phone and the reply was somewhat limited.

i didn't realize the working car was 2018, it uses a different OBC and MCU than the ones that we have traced the schematics. And likely different control units too, such as EVECU, BMS, etc. The CAN PIDS are different such that the Canion App can't read the cell voltages, so there are many differences between 2012 and 2018 cars.

But my point is that it would seem that the issue is not inside the pack since it went to READY with a different EVECU. Also it would seem that the MCU HV voltage measurement circuit is okay.

Good luck to you and hope you can find and repair the issue.
kiev = kenny's innovative electric vehicle

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