Circuit/System Description

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

The F107 Steering Wheel Airbag is a dual-stage inflator located in the steering wheel. The F107 Steering Wheel Airbag contains a housing, inflatable Airbag, an initiating device, a canister of gas generating material and, in some cases, stored compressed gas. The F107 Steering Wheel Airbag uses two discrete deployment loops to supply current and deploy each state of the Airbag. Each deployment loop has a high control circuit that will supply voltage to deploy the Airbag and a low control circuit that will supply ground to deploy the Airbag. Stage 1 uses circuit 3021 as a high control and circuit 3020 as a low control. Stage 2 uses circuit 3023 as a high control and circuit 3022 as a low control.

Based on inputs from the impact sensors, the K36 Restraints Control Module will command deployment of Stage 1 or Stage 2 of the F107 Steering Wheel Airbag depending on crash specifics. To deploy the F107 Steering Wheel Airbag, the K36 Restraints Control Module will simultaneously apply voltage to the high control circuit and ground to the low control circuit.

The X85 Steering Wheel Airbag Coil contains a coil of ribbon cable that allows multiple full rotations of the steering wheel while maintaining continuity of the control circuits.