Another wont go to ready MIEV

[MickeyS70]

Now that, in the last day I have figured out how to use Hobdrive I may get one of those cheap options that work with Hobdrive.

The dongles I have are Vgate Icar pro and Veepeak obd2 scan tool. Neither will read the OBD codes using Car Scanner or Hobdrive in either IMEV but are all fine in newer cars eg Our BYD Atto and Ora.

My Vgate works with HobDrive (paid version), setup isn’t intuitiv, follow @Rational ’s video for guidance (post #6 above).

It can also be used with OBDZero but no joy with CarScanner/Canion..

 

[davidhayesnz]

I'm new to this group. Thanks so much for all the great information I have found already.

I have two MIEVs
Car A. This had a few problems including the air conditioner didn't work, air bag issues and some more. However it had a good 10.5KW battery, charged and drove just fine.
I then purchased another;
Car B with a 16Kw battery that had problems charging including it stopped charging when showing at about 60% charged and it wouldn't charge from a granny charger but it would sometimes charge with a 16amp slow charger. The battery status on the dash would also go blank at random times and then the car would not drive though it would recover from this after a variable amount of time. Otherwise the car was in in very good condition. It alos wouldnt consistently charge on a fast charger . It would keep stopping and would go about about 60% as shown on the dash.

So ....

I swapped the 10.5 Kw battery and BMU into Car B from Car A. Perhaps I was lucky doing this but Car B now with the 10.5KW battery has no issues at all so I have ended up with one very good car.

I then tried putting the 16Kw battery and BMU into Car A but it has the following issues.

Battery wont charge at all
ODB readings show all cells at either 4.01 or 4 volts. I think that means the battery is actually fully charged right? even though its showing at about 60% charged on the dash
Car wont go to ready but with turn on and has the fault light on. The lead battery will then slowly drain as the only power being supplied in the car. For a while after the 16Kw traction battery was installed the car would go to ready for about a second and then go back to not ready. That no longer happens. It just doesn't go to ready at all.

My thoughts
Good readings on all cells suggests the battery cells are OK?
At least one problem must be in the battery pack cells or the CMUs or the BMU (from under the back seat) from Car B as these were the only things swapped between cars.
So excluding the possibility of new issues the onboard charger and motor controller wiring and lead battery should be fine. - They were all working fine before the good battery was swapped out of Car A to Car B. I have tried another good small battery with no change in the problems

I have removed the traction battery and all battery packs measure at about 32volts. So this matches with ODB reading of 4 or 4.01 volts for each battery cells

Thoughts on this please. Should I try getting a replacement BMU and see what that does or is it also very possible that some of the CMUs are the problem. How might I narrow down where the problem is? Otherwise I may just keep the car for parts and breakdown the battery for use in other applications but curious to see if I can resolve this.

Many thanks for any ideas

OK finally got some error codes for Car B with the transplanted 16Kw battery. Sorry its taken so long!
These obtained using a paid version of Car Scanner and an ICar pro dongle
The car has done 65000 Kms. The battery came from a car that had done 99000 kms

Car Scanner ELM OBD2
Version: 1.112.9/401129/GP
DTC report
Connection profile: Mitsubishi i-MiEVDate: 18/11/2024 11:01:28 a.m.
============================
OBD-IIOBD-II
DTCs: 1
----------------------------
P1A44 [0x1A44] Archive (inactive)
Status: Validated and stored in non volatile memory
============================
Engine control unit
No DTC found.
============================
Transmission control unit
No DTC found.
============================
ABS control unit #1
No DTC found.
============================
ABS control unit #2ABS control unit #2
DTCs: 3
----------------------------
U111B [0xD11B] Archive (inactive)
Status: Validated and stored in non volatile memory
----------------------------
U1100 [0xD100] Archive (inactive)
SCP (J1850) Invalid or Missing Data for Primary Id; Engine CAN timeout
Status: Validated and stored in non volatile memory
----------------------------
U1207 [0xD207] Archive (inactive)
SCP (J1850) Invalid or Missing Data for Primary Id
Status: Validated and stored in non volatile memory
============================
AWC 4WD #1
No DTC found.
============================
AWC 4WD #2
No DTC found.
============================
SRS airbag #1
No DTC found.
============================
SRS Airbag #2
No DTC found.
============================
Dashboard/Meter #2Dashboard/Meter #2
DTCs: 1
----------------------------
U1116 [0xD116]
SCP (J1850) Invalid or Missing Data for Electrical Energy Management; KOS CAN timeout/Not equipped
Status: Validated and stored in non volatile memory, Validated fault present at time of request
============================
TPMS
No DTC found.
============================
ACC/FCM
No DTC found.
============================
Lane assistance
No DTC found.
============================
Compressor
No DTC found.
============================
DC/DC converter
No DTC found.
============================
EV
No DTC found.
============================
KOS/OSS/Immobilizer
No DTC found.
============================
ABS/ASC/ASTC/WSS
No DTC found.
============================
Immobilizer
No DTC found.
============================
BCM/ETACS #1
No DTC found.
============================
BCM/ETACS #2BCM/ETACS #2
DTCs: 1
----------------------------
U1111 [0xD111]
SCP (J1850) Invalid or Missing Data for Primary Id; Display CAN timeout/Not equipped
Status: Validated and stored in non volatile memory, Validated fault present at time of request
============================
Multifunction display
No DTC found.
============================
A/C), climate), heater #1
No DTC found.
============================
A/C), climate), heater #2A/C), climate), heater #2
DTCs: 2
----------------------------
B1105 [0x9105]
Status: Validated and stored in non volatile memory, Validated fault present at time of request
----------------------------
U111C [0xD11C] Archive (inactive)
Status: Validated and stored in non volatile memory
============================
AYC/ACD
No DTC found.
============================
BMU
No DTC found.
============================
CMU #1
No DTC found.
============================
CMU #2
No DTC found.
============================
CMU #3
No DTC found.
============================
CMU #4
No DTC found.
============================
CMU #5
No DTC found.
============================
CMU #6
No DTC found.
============================
CMU #7
No DTC found.
============================
CMU #8
No DTC found.
============================
CMU #9
No DTC found.
============================
CMU #10
No DTC found.
============================
CMU #11
No DTC found.
============================
CMU #12
No DTC found.
============================
E/V ECU
No DTC found.
============================
MCU
No DTC found.
============================
Other unit #1
No DTC found.
============================
Dashboard/Meter #3
No DTC found.
============================
Dashboard/Meter #1
No DTC found.
============================
A/C), climate), heater #3
No DTC found.
============================
TPMS #2
No DTC found.

 

[MickeyS70]

P1A44 is a ground fault and is usually caused by water/condensation in the AC compressor, but this seems to be an old (archived) fault. However B1105 is also AC compressor related and appears to be currently active.

Best try a clear the faults first, then follow @kiev ’s advice in post below:

https://myimiev.com/threads/fault-codes-and-charging.5506/

 

[davidhayesnz]

P1A44 is a ground fault and is usually caused by water/condensation in the AC compressor, but this seems to be an old (archived) fault. However B1105 is also AC compressor related and appears to be currently active.

Best try a clear the faults first, then follow @kiev ’s advice in post below:

https://myimiev.com/threads/fault-codes-and-charging.5506/

Thanks. The air conditioner has a broken high pressure line and been like that for 12 months. Car was going fine otherwise but did have a seat belt warning light on. Vehicle is used off roads only. These presumably unrelated to current issues of not starting