Conditions for Setting the DTC
WARNING: This page is about a different car, the 2011 Chevrolet HHR. However, it is still accessible from the selected car via links, so may be relevant.
B2462 02
The vehicle communications interface module detects a short to ground on the navigation antenna signal circuit.
B2462 04
The vehicle communications interface module detects an open/high resistance on the navigation antenna signal circuit.