Restraints control module (RCM)
WARNING:
Do not handle, move or change the original horizontal mounting position of the restraints control module (RCM) while the RCM is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the Safety Canopy ® and cause serious personal injury or death.
WARNING:
If a vehicle has been in a crash, inspect the restraints control module (RCM) and the impact sensor (if equipped) mounting areas for deformation. If damaged, restore the mounting areas to the original production configuration. A new RCM and sensors must be installed whether or not the airbags have deployed. Failure to follow these instructions may result in serious personal injury or death in a crash.
The RCM has internal sensors it uses to measure vehicle dynamics information such as yaw rate, roll rate, and lateral acceleration. It then transmits the information the ABS on a private HS-CAN between the two modules.
The RCM includes a backup power supply. This feature provides sufficient backup power to deploy the airbags in the event the ignition circuit is lost or damaged during impact. The backup power supply depletes its stored energy approximately one minute after power and/or ground has been removed from the RCM.
The RCM requires Programmable Module Installation (PMI) when being replaced. Refer to the scan tool instructions to carry out Programmable Module Installation (PMI).