Conditions for Setting the DTC
WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
P1AE8 and P1AEA
The drive motor control module detects high voltage sensor voltage less than 0V.
P1AE9 and P1AEB
The drive motor control module detects high voltage sensor voltage greater than 564V. Cert Doc = 500 V.