Air Bag Warning Indicator
WARNING: This page is about a different car, the 2016 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The IPC receives the air bag warning indicator request from the GWM over the HS-CAN3. The GWM receives the air bag indicator request from the RCM over the HS-CAN2. If a SRS concern is detected, the RCM sets a DTC and the IPC illuminates the air bag warning indicator.