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I am working on connecting my Orion JR BMS to my Tesla LDU. I'm at the point where I can talk to the BMS via CAN and once I connected the High Voltage to the drive, I started getting an error code on the Orion BMS
P0AA6 - High Voltage Isolation Fault
So myself and a fellow EV enthusiast have been double checking every wire and connection, disconnecting each component one at a time to trace the problem. Along the way, we discovered a strange short between the Tesla High Voltage wiring and its shielding. The ohm meter is reading about 6 Mega Ohms across. It reads this short on both the + and - leads. I even pulled the cables out of the drive and tested continuity between the invertor connection and the case of the drive, and I get the same reading. As you can see from the picture, I have everything disconnected from the drive. (see the picture)
I would expect the high voltage connections on the invertor to be 100% isolated from the case of the drive, but I'm not completely sure. Does anyone know if what I am seeing is normal?
P0AA6 - High Voltage Isolation Fault
So myself and a fellow EV enthusiast have been double checking every wire and connection, disconnecting each component one at a time to trace the problem. Along the way, we discovered a strange short between the Tesla High Voltage wiring and its shielding. The ohm meter is reading about 6 Mega Ohms across. It reads this short on both the + and - leads. I even pulled the cables out of the drive and tested continuity between the invertor connection and the case of the drive, and I get the same reading. As you can see from the picture, I have everything disconnected from the drive. (see the picture)
I would expect the high voltage connections on the invertor to be 100% isolated from the case of the drive, but I'm not completely sure. Does anyone know if what I am seeing is normal?