Component Parts: TCU
WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
- Telematics Communication Unit (TCU) is installed on the steering member.
- 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 NISSANCONNECT center through the TEL antenna.NOTE: *: SMS stands for Short Message Service. It is also referred to as Text Messaging, Short Mail, etc. 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 via CAN communication. 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.