Component Description
WARNING: This page is about a different car, the 2020 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
- TCU is the abbreviation of Telematics Communication Unit.
- It is installed beneath the center console A/T finisher.
- A radio communication terminal and SIM card are built into the unit and data is sent and received in SMS *
with the NISSANCONNECT center through the TEL antenna.NOTE: *: SMS stands for Short Message Service. It is also referred to as Text Messaging, Short Mail, etc. It is the service that performs text based message communication.
- It is connected to the AV control unit with the USB harness for data communication.
- It is connected to the airbag diagnosis sensor unit. TCU performs an emergency report when the air bag is inflated.
- VIN information necessary for the Telematics service is memorized.
- Audio signals received during SOS/Operator call are transmitted from TCU to each speaker via the AV control unit.
- During the communication with NISSANCONNECT center, TCU transmits a TEL ON signal to the AV control unit to prohibit the use of Bluetooth ® hands-free phone.