Conditions for Setting the DTC
WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
P0AC0
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.
- 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 low range current measurement is greater than 4 A for 3 seconds.
P0AC1
The drive motor generator battery control module detects that the current sensor high range is greater than +200 A and the current sensor medium range is greater than +52 A and the current sensor low range is greater than +22 A for 3 seconds.
P0AC2
The drive motor generator battery control module detects that the current sensor high range is less than -200 A and the current sensor medium range is less than -52 A and the current sensor low range is greater than -22 A for 3 seconds.
P1A07
The drive motor generator battery control module detects less than 4.8 V or greater than 5.2 V on the 5 V reference circuit.