Information Bus: Description and Operation
COMMUNICATIONS NETWORKAll-Wheel Drive (AWD) Control Module
The one speed AWD system uses a fully automatic, torque on demand (TOD) transfer case without a shift motor. The AWD system is controlled by the AWD control module, which is located in the center console toward the instrument panel. The AWD control module is on the universal asynchronous receiver-transmitter (UART)-based protocol (UBP) communications network. The AWD control module engages and disengages the transfer case between 2-wheel drive (2WD) and AWD when more traction is required.
Anti-Lock Brake System/Traction Control (ABS/TC) Module or Stability Assist Module
The ABS/TC module or stability assist module are on the standard corporate protocol (SCP) communications network. The ABS/TC module or stability assist module controls the brake pressure to the 4 wheels to keep the vehicle under control while braking.
Driver Climate Controlled Seat Module
The driver climate controlled seat module is located under the driver seat. The driver climate controlled seat module is on the UBP communications network. The driver climate controlled seat module controls the heating elements in the seat for passenger comfort.
Driver Seat Module (DSM)
The DSM is located under the driver seat. The DSM is on the UBP communications network. The DSM controls the positioning and programming of the driver seat, pedals and both outside mirrors.
Dual Electronic Automatic Temperature Control (DEATC) Module
The DEATC module is located in the instrument panel below the audio unit. The DEATC module is on the SCP communications network. The DEATC module controls automatic climate functions that maintain the vehicle interior temperature at a constant setting.
Instrument Cluster
The instrument cluster is located in the instrument panel above the steering column. The instrument cluster is on the SCP communications network. The instrument cluster serves as a UBP communications network gateway to communicate to other modules on the UBP communications network. The instrument cluster displays a variety of information.
Navigation System Module
The navigation system module is located behind the rear seat under the carpet. The navigation system module is on the SCP communications network. The navigation system module controls the global positioning system on the vehicle.
Parking Aid Module
The parking aid module is located in the right rear quarter trim panel towards the rear. The parking aid module is connected to the international standards organization (ISO) 9141 communications network. The module controls sensors in the rear bumper that detect close objects when the vehicle is in reverse.
Passenger Climate Controlled Seat Module
The passenger climate controlled seat module is located under the passenger seat. The passenger climate controlled seat module is on the UBP communications network. The passenger climate controlled seat module controls the heating elements in the seat for passenger comfort.
Powertrain Control Module (PCM)
The PCM is located in the instrument panel on the right side behind the glove compartment. The PCM is on the SCP communications network. The PCM controls the engine for better fuel economy, emissions control, failure mode detection and storage.
Restraint Control Module (RCM)
The RCM is located under the center console towards the instrument panel. The RCM is on the ISO 9141 communications network. The RCM controls the deployment of the air bags based on sensor input.
Tire Pressure Monitoring System (TPMS) Module
The TPMS module is located behind the right side C-pillar trim. The TPMS module is on the SCP communications network. The TPMS module uses one sensor mounted in each tire to sense low tire pressure and alert the driver.
Variable Assist Power Steering (VAPS) Module
The VAPS module is located behind the instrument panel behind the glove compartment. The VAPS module is on the SCP communications network. The VAPS module controls and varies the power steering effort needed at different vehicle speeds.
Vehicle Security Module
The vehicle security module is located behind the right rear quarter trim panel. The vehicle security module is on the UBP communications network. The vehicle security module controls the remote keyless entry (RKE) functions for the vehicle.