Component Parts: TCU
WARNING: This page is about a different car, the 2017 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
- TCU is abbreviation of Telematics Communication Unit.
- It is installed at the back of the glove box cover assembly.
- A radio communication terminal and SIM card are built into the unit and data is sent and received in SMS*
, DTMF tone signal with the NISSANCONNECTSM
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 sound signal input/output and USB 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 NISSANCONNECTSM center, TCU transmits a TEL ON signal to the AV control unit to prohibit the use of Bluetooth® hands-free phone.