Principles Of Operation

Remote Function Actuator (RFA) Module

Principles of Operation

NOTE: The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM).

The Remote Function Actuator (RFA) module is a multifunction electronic module that controls many of the vehicle systems. The RFA module communicates on both the Medium Speed Controller Area Network (MS-CAN) and the High Speed Controller Area Network (HS-CAN). Most of the RFA module functions utilize hardwired inputs and/or outputs. The RFA module controls the following hardwired functions:

- Anti-theft perimeter alarm
- Intelligent Access (IA)
- Keyless entry keypad
- Luggage compartment lid release
- Passive Anti-Theft System (PATS)
- Power door locks
- Remote Keyless Entry (RKE) system
- RKE transmitter (part of the IA key)

In addition, the RFA module is involved in other vehicle systems through communication over the MS-CAN and the HS-CAN.

Some RFA module parameters are programmable. The factory set 5-digit permanent entry code from the SJB must be configured into a new RFA module after installation. Two types of programmable parameters are available: vehicle configuration and customer preference. Refer to Information Bus.