I3 EME voltage sensor

[JoshoRey]

Hi

Not the usual rhythm of this forum I know but I am pulling hair out with an i3.

It won't charge on AC. It will charge on DC.

It is throwing 222AE5 Internal Charging Electronics voltage sensor short circuit to B+.

I tried a used KLE (maybe no good!) But exactly the same.

Where on earth is the voltage sensor? I can see one on this forum in the LIM circuits but on the DC side whcij rules this out.

I'm sure its a KLE fault but it seems a bit of a risk to buy a new one.

I'd love to see this sensor on a board somewhere and get some measurements

[FelixWankle]

Don't suppose anyone knows what caused this? I have the same issue.

[FJ3422]

If I remember correctly, the I3 has a single-phase OBC integrated in the drive unit. If the car was ordered with a 3-phase OBC, a separate KLE was added for the two other phases. Since your message tells "internal" charging electronics, I guess there is something wrong with the OBC in the EME. Maybe a stuck relay between the OBC & B+ ?

[Kutato72]

The EME includes a 3.3 kW on-board charger (OBC) labeled “SLA_Power” at the bottom. It has 3+2 chips that perform various measurements. 1 or 2 usually fail when the OBC is destroyed due to overvoltage, and it gives this "false" error. The short circuit is not at B+, and the error description is not correct either. I'm not saying a specific error location, because the entire module needs repair or replacement, which I would have a hard time solving for you from Hungary.

[FelixWankle]

Thanks for the information. It will be to try to fix the fault.

Is the OBC replaceable if I open up the EME? I would like to try to get my EME repaired instead of replace it and go through the coding etc of it. Even if I have to by a used EME I would like to replace the OBC in my EME.

Also, if I use a fast ac 7kw charger will it charge using the 3.3kw charger in the kle? Or will it fail due to the detected eme obc failure?