With the H441 recall and the implementation of a more accurate monitoring of the battery, JLR has introduce a couple of new PID in the BECM module. In case of a bad module, the charge is limited to 72% until that module is changed.
On the BECM (7E4) , the PID
- 4A0B is a vector of 36 values, one per modules. A zero value means the module is healthy.
- 4A7C (Hybrid/EV Resting Deviation Voltage Exceedance Threshold) is a vector of 36 x 3 values (I guess for the 3 sub module in a 4P3S architecture)
- 4A7D (Hybrid/EV Moving Average voltage deviation exceedance threshold) is a vector of 36 x 3 values (I guess for the 3 sub module in a 4P3S architecture)
I know that I have a bad module (module #8). here are my values:

4A0B: "00 00 00 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00"
4A7C: "(00 00 00) (0a 00 00) (00 00 00) (0a 00 00) (00 0a 00) (00 0a 00) (00 00 00) (00 b4 00) (00 00 00) (00 00 00) (0a 00 0a) (00 00 00) (00 00 00) (00 00 00) (00 00 00) (00 00 00) (00 0a 00) (00 00 00) (00 00 00) (5a 00 00) (00 00 00) (00 00 00) (00 00 00) (00 00 00) (00 00 00) (00 00 00) (00 00 00) (00 00 00) (00 00 0a) (00 0a 00) (00 00 00) (0a 00 00) (00 0a 00) (00 00 00) (00 0a 00) (0a 00 00)"
4A7D: "(15 14 16) (14 14 15) (15 17 14) (16 14 17) (15 15 16) (19 1a 1a) (17 14 17) (1b 1c 21) (19 1a 1b) (17 15 17) (14 18 15) (13 13 13) (16 12 14) (13 14 14) (14 13 13) (15 14 14) (15 15 15) (13 16 16) (16 17 18) (17 19 18) (1a 1e 1a) (14 16 15) (16 19 16) (14 14 14) (16 13 16) (16 1a 18) (1c 1a 1a) (17 17 16) (17 17 16) (17 17 16) (17 14 13) (15 14 15) (12 14 16) (16 15 15) (17 16 18) (1b 13 14)"

If other Ipace owner with OBD2 reader can share their values on the BECM, that would help me understanding what is the threshold to declare a bad module in the car.
Here is the trend for PID 4A7D in the car over the last 6 months. A slow and steady climbing curve.

 

Anyone here on the forum with a OBD2 reader ? if you can post your reading of those PID could help me.
Thanks