Telematics Control Module
| ITEM | DESCRIPTION |
|---|---|
| A | Vehicles with InControl Touch audio system |
| B | Vehicles with InControl Touch Pro audio system |
| 1 | Back-up Battery cover |
| 2 | Universal Serial Bus (USB) connector |
| 3 | Electrical connector |
| 4 | Speaker connector |
| 5 | Global System for Mobile communications (GSM) antenna connector |
| 6 | Global Positioning System (GPS) antenna connector |
| 7 | Global System for Mobile communications (GSM) antenna connector |
| 8 | Telematics Control Module (TCU) |
| 9 | WiFi client connection |
| 10 | BroadR-Reach® Ethernet connector |
The Telematics Control Module (TCU) is located on the left wheel arch, behind the rear seat bolster trim panel.
The TCU receives a permanent power supply from the startup battery via fuses in the Battery Junction Box (BJB) and the Rear Junction Box (RJB).
The TCU controls the telematics system by communicating with the vehicle systems. The TCU uses the High Speed (HS) Controller Area Network (CAN) power mode zero systems bus via the Body Control Module/Gateway Module (BCM/GWM) assembly.
The system transmits/receives signals via:
- The Global Navigation Satellite System (GNSS)
- The Global System for Mobile communications (GSM).
Depending on vehicle specification, the TCU also transmits/receives signal from the following:
- The portable audio interface panel via Universal Serial Bus (USB) connection, if the vehicle is equipped with InControl Touch audio system with WiFi Hotspot feature.
- The roof pod via co-axial connection, on vehicles with InControl Touch Pro audio system with 'InControl Pro Services'.
The TCU has an integral embedded Subscriber Identification Module (SIM) card. The embedded SIM card is part of the module circuitry and cannot be removed. The embedded SIM card is configured to enable the network to retrieve and pass information to the telematics service provider. The embedded SIM card enables the telematics service provider to call back the TCU, if required.
The embedded SIM card is used in the following circumstances:
- During an Emergency Call (eCall)
- During a Breakdown Call (bCall)
- During a stolen vehicle tracking operation.
Use of the embedded SIM card will override the user provided Micro SIM card data transmissions.
This will result in loss of InControl Pro Services during the call duration.
The Restraints Control Module (RCM) is connected directly to the TCU. The hardwired connection provides an instant crash signal communication from the RCM in the event of an accident of a severity to activate the airbags. When the TCU receives the crash signal an automatic eCall is initiated. For additional information, Refer to: AIRBAG SUPPLEMENTARY RESTRAINT SYSTEM