danbertolet wrote: ↑
Tue Dec 29, 2020 10:42 am
Would it work to rule out the 12V battery if I cleared all faults, set up a jump, and while it has 14V from the other car, try the 120V trickle charger to see if it still shuts down and triggers the same fault code?
P0AA6 00C0 EV/HEV Hybrid Batt Volt Sys Isolation EVC-157
It would absolutely rule out 12V supply problems, but it's unlikely to help. That fault means the vehicle has detected a voltage leak between the high-voltage battery and ground. The service manual lists the possible causes as:
- High voltage harness or connectors
- electric compressor
- PTC elements heater
- traction motor
- On-board charger
- Li-ion battery
- DC/DC J/B
As you might imagine, troubleshooting all that is a chore and involves potential exposure to high voltage. As the service manual notes: "Touching high voltage components without using the appropriate protective equipment will cause electrocution"