About 4 or 5 days ago I got the dreaded red triangle of death, so I took my car home and parked it. I got tech stream out and connected it to the car to see what the problem is, it returned codes of p3000 and p3009, under hv battery live the 3009 code reads leak detected. I reset the codes, turned the car off, then I turned it to the on position and waited, the warning came back, from what I understand if the car is in the on position and not the run position that means the issue is in the hv battery. I tried to toggle the battery blower fan on and off but the battery blower fan will not turn on at all, I do hear a relay flipping in the battery but nothing happens. I took the battery apart and cleaned all the bus bars and re attached them, then I watched the voltages on the battery blocks, they would charge as high as around a bit over 16 volts with the engine running, and they would slowly drop to around 15 volts over about 10 to 15 minutes with the engine off before it would start up again. when I had the battery apart I did check each cell with a multimeter, they all read around 15.5 volts. I also removed the battery control module, and opened it, it looked ok, but obviously you can't always tell by just looking at a circuit board if it's bad or not. I'm not exactly sure what's going on here, if the battery control computer has gone bad, the battery itself, or something else in the battery circuit causing an issue. I did take screen shots of the tech stream battery live data if anyone thinks they can help but needs a bit more than I've provided. Thank you in advance for any help I get, I've solved a good number of problems with this car mostly from reading forums, but this one has me puzzled a bit.