Conditions for Setting the DTC
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
P1075
The stop/start capacitor control module detects the capacitor middle point line is in an open circuit state, short to ground state or the capacitor is defective.
P1076
The stop/start capacitor control module detects the capacitor middle point line is greater than 4.8 V.