Description And Operation: Notes
DESCRIPTION
The audio system includes the following components:
| 1. | Refer to SPEAKERS . |
| 2. | Refer to RADIO - The radio and display are separate components for the 257 mm (10.1 in.) radio but are integral for the 213 mm (8.4 in.) radio. |
| 3. | Refer to BLUETOOTH®/WI-FI ANTENNA . |
| 4. | Refer to DISPLAY SCREEN MODULE (DSM) . |
| 5. | Refer to MEDIA HUB . |
| 6. | Refer to COMBINATION ANTENNA - Short mast or sharkfin, depending on vehicle equipment. |
| 7. | Refer to REAR VIEW CAMERA (RVC) . |
| 8. | Refer to AMPLIFIER . |
| 9. | Refer to REMOTE RADIO SWITCHES . |
| 10. | Refer to BODY CONTROL MODULE (BCM) . |
Several combinations of radios and speaker systems are offered on this vehicle. The audio system receives fused battery voltage from a fuse in the BCM at all times. On vehicles that are equipped with Engine Stop/Start (ESS), the radio receives fused battery voltage from the Voltage Stabilizer Unit.
There are three radios available in this vehicle; Uconnect® 5 with 213 mm (8.4 in.) with integral display, Uconnect® 5 with 257 mm (10.1 in.) DSM, and Uconnect® 5 NAV with 257 mm (10.1 in.) DSM. Each radio has a distinct chassis design and is identified by a sales code. Only models equipped with the Uconnect® 5 NAV 257 mm (10.1 in.) inch radio are natively programmed with Navigation.
For a list of radio Sales Codes available for this vehicle, refer to MODULE, RADIO RECEIVER, DESCRIPTION AND OPERATION .
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.
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 optional navigation radio system receives GPS signals from up to eight satellites to display the position and direction of the vehicle. 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.
The Security Gateway Module (SGW) is in the audio and telematics CAN 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 hardwired circuits between components related to the audio system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds. For proper wire repair, refer to WIRE SPLICING . For connector repair procedures, refer to CONNECTOR TERMINAL REMOVAL and refer to CONNECTOR TERMINAL INSTALLATION .
However, conventional diagnostic methods will not prove conclusive in the diagnosis of the audio system or the electronic controls and communication between modules and other devices that provide some features of the audio system. The most reliable, efficient and accurate means to diagnose the audio system or the electronic controls and communication related to audio system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.