Rear Audio Control Module (RACM)
WARNING: This page is about a different car, the 2023 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
The RACM is located in the second row on the rear of the center floor console. The RACM also depending on the optional trim package and region can be located on the second row arm rest between the second row captain chairs. The RACM contains both rear HVAC controls and audio controls. It is used by the rear vehicle occupants to request changes to the rear climate control system. The requests are sent to the FCIM control module over the MS-CAN then relayed through the GWM by the HS-CAN3 to the RACM.
For more information about the RACM, Refer to: Information and Entertainment System - System Operation and Component Description .