Circuit/System Description
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.
When the ignition is turned ON, the K85P Restraints Occupant Classification Module performs self tests to diagnose critical malfunctions. If the K85P Restraints Occupant Classification Module detects a fault within the Occupant Classification system, the K85P Restraints Occupant Classification Module will notify the K36 Restraints Control Module via serial data of the fault status. When the K36 Restraints Control Module is notified of a fault in the K85P Restraints Occupant Classification System Module, the K36 Restraints Control Module will set DTC B1A35 and illuminate the AIRBAG indicator.