Conditions for Setting the DTC
WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
B1784 11
Short to ground on the GPS antenna signal circuit.
B1784 12
Short to voltage on the GPS antenna signal circuit.
B1784 13
Open/high resistance on the GPS antenna signal circuit.