Telematics Control Unit (TCU)
The hardware module that manages wireless communication and remote vehicle data.
The TCU integrates cellular, GPS, and Wi-Fi communication to connect the vehicle to cloud services. It supports functions like remote monitoring, navigation, and over-the-air updates. In fleet management, TCUs collect performance and usage data for analytics. Modern TCUs include embedded SIMs, secure encryption, and 5G capability. Their role continues to expand as vehicles become more connected and data-driven.
Applying This Knowledge in Practice
The diagnostic principles discussed above are commonly applied in real-world vehicle diagnostics. To put this knowledge into practice, explore professional automotive diagnostic tools designed to support system testing, fault analysis, and troubleshooting across modern vehicles.