The TCU is the embedded in-vehicle control unit that communicates with the automobile ECUs and GPS satellite and accesses the telematics services over the wireless infrastructure. The TCU is a small computing device that tunes in on the interchanges of other electronic frameworks in the automobile, then translates and scatters that information as vital. It fulfills this by piggy-support onto the Controller Area Network (CAN-transport) a correspondence framework found in every modern automobile. The CAN-transport goes about as correspondences connect between the greater parts of the ECUs inside the vehicle. TCU pulls information from the CAN-transport - this rearranges the framework since it doesn't need to be wired into each and every ECU in the auto. It can get information from any ECU by essentially tuning in on the CAN-transport organize. In some ways, it acts much like a repairman's analytic sweep instrument, yet it makes the information accessible to the driver in various easy to understand ways that are conceivable to the normal auto proprietor. The TCU itself is generally the size and weight of a soft cover book. It's planned with warmth and vibration protecting, so it could be mounted anywhere hypothetically, incorporating into the engine or motor compartment.
Use of Telematics Control Unit (TCO)