Module, Radio Frequency (RF Hub): Description
The Radio Frequency Hub (RF-Hub) is the primary component of several standard and optional electronic systems in the vehicle. The RF-Hub is a RF and Low Frequency (LF) receiver, contains controlling logic for a number of systems and communicates with other Electronic Control Modules (ECMs) and nodes in the vehicle over the Controller Area Network (CAN) data bus as well as over a private serial bus. Different signals supporting options include automatic transmission, manual transmission, Passive Entry Keyless Go (PEKG) system using smart door handles, the Keyless Ignition Node (KIN), and remote start.
Systems and features supported by the RF-Hub include:
- Vehicle Ignition System
- PEKG Systems
- Remote Keyless Entry (RKE) System
- Remote Start System
- Sentry Key Immobilizer System (SKIS)
- Vehicle Theft Alarm (VTA) System
Concealed and protected within the molded black plastic housing are the microcontroller and the other electronic circuitry of the module. The RF-Hub is located near the center of the shelf support behind the rear seat back and is concealed beneath the package tray interior trim. It is secured through mounting tabs integral to the module housing to the shelf support by fasteners on weld studs.
This model RF-Hub has two connector receptacles integral to the RF-Hub housing and are connected to the vehicles electrical system through dedicated take outs and connectors of the body wire harness. A Remote Start Antenna (RSA), located adjacent to the RF-Hub on the shelf support and is connected directly to the RF-Hub through a third integral connector receptacle.
The RF-Hub cannot be adjusted or repaired and, if damaged or ineffective, it must be replaced.