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.
P1AEC and P1AED
A difference of more than 40 V on the high voltage circuit is detected between the hybrid powertrain control module and the hybrid powertrain control module 2.
AND
A difference of more than 50 V on the high voltage circuit is detected between the motor control module and the hybrid powertrain control module 2.
P1AEE and P1AEF
Greater than 425 V on the high voltage circuit is detected by the motor control module.