Description And Operation: Notes
DESCRIPTION
The audio system may include the following components:
| 1. | Refer to: ANTENNA MAST, BODY AND CABLE . |
| 2. | Refer to: SPEAKERS . |
| 3. | Refer to: RADIO . |
| 4. | Refer to: DIGITAL AUDIO BROADCAST ANTENNA AND MODULE . |
| 5. | Refer to: WIRELESS BLUETOOTH® SPEAKER . |
| 6. | Refer to: GLOBAL POSITIONING SYSTEM (GPS) AND SATELLITE DIGITAL AUDIO RADIO SERVICE (SDARS) ANTENNA . |
| 7. | Refer to: REAR VIEW CAMERA (RVC) without Front View Camera (FVC). |
| 8. | Refer to: REMOTE RADIO SWITCHES . |
| 9. | Refer to: MEDIA HUB . |
| 10. | Refer to: AMPLIFIER . |
| 11. | Refer to: BODY CONTROL MODULE (BCM) . |
There are three radios, available in this vehicle, each equipped with a touchscreen display. There are four Uconnect® packages available; Uconnect® 3 with 5 inch display, Uconnect® 4 with 7 inch display, Uconnect® 4 NAV with 8.4 inch display, and Uconnect® 4C NAV with 8.4 inch display. Each radio has a distinct chassis design and is identified by a sales code.
With the optional navigation system, the operator has the option of choosing a street address, point of interest, trip itinerary and other features outlined in the operator's manual.
The audio system receives fused battery voltage from a fuse in the Power Distribution Center (PDC) at all times.
OPERATION
The Security Gateway Module (SGW) is the Controller Area Network (CAN) gateway between the radio, telematics modules, Data Link Connector (DLC) and the other vehicle CAN modules. An SGW failure could prevent the radio from powering up, telematics module from communicating or a scan tool from communicating with the vehicle. For additional information on the SGW. Refer to MODULE, SECURITY GATEWAY (SGW), DESCRIPTION AND OPERATION .
The audio system components are designed to provide audio entertainment and information through the reception, tuning and amplification of locally broadcast radio signals in both the Amplitude Modulating (AM) and Frequency Modulating (FM) commercial frequency ranges. If the vehicle is so equipped, the audio system can also receive, amplify or process certain cellular, satellite audio and satellite Global Positioning System (GPS) radio signals. The audio system components operate on battery current received through a fuse in the BCM.
The SGW is in the audio and telematics systems to provide security against certain types of attacks and threats from the scan tool, telematics and entertainment buses, which can put the rest of the vehicle's buses at risk of intrusion. The SGW lies electrically between the vehicle on one side, and the Data Link Connector (DLC), telematics and entertainment systems on the other side. The main function is to gate messages from one bus to another. The SGW monitors the B(+) Feed, switched ignition feed, CAN circuits, software and hardware for any concerns.
The optional navigation radio system receives GPS signals from up to eight satellites to display the position and direction of the vehicle. Map information is supplied through a DVD-ROM. An electronic gyro-sensor and the speed sensor in the vehicle enable the system to display the present vehicle position even in locations where GPS signals may be blocked. When a destination is selected, the navigation system uses information from the map to quickly calculate a route. As the vehicle is driven along the chosen route, the operator is guided with pictorial displays and voice prompts.