DTC P0AC0 Cadillac

Cause and Solution

One of the following conditions exists:
The drive motor generator battery control module detects greater than 5 A on the current sensor after a successful high voltage system power down and after the contactors have opened.
The drive motor generator battery control module detects an increase in total pack voltage greater than 10 V and the current sensor measures less than a 0.5 A increase.
The drive motor generator battery control module detects less than 20 A on the high range sensor and the difference between the high range current measurement and the medium range current measurement is greater than 20 A for 3 seconds.