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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (Supplemental Restraints System) >> Diagnostic Information and Procedures >> DTC B15DF or B15E3 >> Circuit/System Description

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.

For an overview of the component/system, refer to: Supplemental Inflatable Restraint System Description and Operation 

The F106P Front Seat Outboard Seat Back Airbag- Passenger and F106D Front Seat Outboard Seat Back Airbag - Driver, are single stage inflators located within the passenger and driver seats respectively. The F106 Seat Side Airbags contain a housing, inflating device, a canister of gas generating material and, in some cases, stored compressed gas. The deployment loop has a high control circuit that will supply voltage to deploy the airbag and a low control that will supply ground to deploy the airbag. The F106P Front Seat Outboard Seat Back Airbag- Passenger uses circuit 4956 as high control and circuit 4957 as low control. The F106D Front Seat Outboard Seat Back Airbag - Driver uses circuit 4962 as high control and circuit 4963 as low control. Based on inputs from the impact sensors, the K36 Restraints Control Module will command deployment of the F106P Side Seat Airbags by simultaneously applying voltage to the high control circuit, and ground to the low control circuit.