Nissan Pathfinder: Audio, Visual & Navigation System - System Description

• Component Parts
• System
• Diagnosis System (ivc)

Component Parts Nissan Pathfinder

Telematics System

Component Parts Location

AV Control Unit

• An 8-inch (without navigation) or 9-inch (with navigation) color display with multi-touch control, an AM/FM electronic tuner radio with RDS and camera controller are integrated into the AV Control unit.

  

• The color display is a high resolution monitor that includes touch panel functions.

TCU

• Telematics Communication Unit (TCU) is installed under the instrument panel, in front of the center console.

  

• 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 known as Text Messaging, Short Mail, etc. and 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 air bag 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.

Telematics Antenna

• The telematics antenna consists of TEL antenna and GPS antenna.

• It is installed in the instrument panel.

  

  NOTE:

  The placement of an object on the instrument panel may cause desensitization in the receiver sensitivity.

Microphone

• Microphone is installed on the map lamp assembly.

  

• The microphone is used for the operation of the NissanConnect, hands-free phone system, voice recognition function.

• The power is supplied from the TCU to the microphone, transmitting sound signals to the TCU during operation of the NissanConnect system, hands-free phone communication, and voice recognition.

Telematics Switch

• The Telematics switch is located on the map lamp assembly.

  Telematics Switch (Without Moonroof)

  Moonroof Switch Assembly [Telematics Switch (With Moonroof)]

• The Telematics switch is connected to TCU and transmits an operation signal.

• The state of LED (ON/Blink/OFF) shows the status of SOS call.

  LED ON	:SOS Call available
  LED Blink	:SOS Call in communication
  LED OFF	:Out of service area or system error

System Nissan Pathfinder 2025

System Description

SYSTEM DIAGRAM

Without Bose Audio System

With Bose Audio System

TCU Input Signal (CAN Communication)

DESCRIPTION

• The Telematics system is a system for providing information by connecting the vehicle and the user to the NissanConnect center.

• Telematics Communication Unit (TCU) equipped with a radio communication terminal communicates with the information center (NissanConnect center) via radio waves for receiving NissanConnect services.

• With the equipment of the radio communication terminal, TCU communicates with NissanConnect center by Packet communication^*1 and SMS^*2 via TEL antenna.

  NOTE:

  • *1: Packet communication means a communication method that data is broken down into smaller chunks for communication. The split data is called a packet and improves the efficiency of the communication circuit.

  • *2: SMS stands for Short Message Service, also known as text messaging or short mail, and provides text-based message communication services.

• While communicating with the operator, data (e.g. transmission of own Nissan Pathfinder vehicle location) is transmitted to the NissanConnect Service Center by using DTMF tone signals and SMS via the radio communication module included in TCU.

• Audio signals transmitted and received while communicating with the operator are input by microphone connected to TCU.

• Audio signals are output from TCU via the audio data circuit connected to the AV control unit.

Diagnosis System (ivc) Nissan Pathfinder Fifth generation

CONSULT Function

APPLICABLE ITEM

CONSULT performs the following items by communication with TCU.

*: Displays when performing "Diagnosis (All System)".

Self-Diagnosis Results

• The self-diagnosis results and error history are displayed collectively.

• The current malfunction indicates "0". The counter increases by 1 if the condition is normal at the next ignition switch ON cycle.

Refer to DTC Index.

Data Monitor

All Items

• Displays the status of the following vehicle signals input to TCU.

• For each signal, the actual signal can be compared with the condition recognized on the system.

  Display item [Unit]	Condition
  USB [No con/Con/No dete]	Status of USB connection in the Nissan Pathfinder vehicle.
  SIM status [Lock/Unlock]	NOTE: This item is displayed, but cannot be used.
  Backup battery age [day(s)]	Set value for continued operation time to control back up battery consumption. NOTE: Number of days (default/no battery preset)
  eUICC STATUS PIN used [Enable/Disable]	NOTE: This item is displayed, but cannot be used.
  SOS switch [On/Off]	Status of SOS switch if available on Nissan Pathfinder vehicle.
  Radio wave [On/Off]	Network Access Device on Nissan Pathfinder vehicle is ON/OFF setting.
  Zone [U.S.A]	Regional setting of Nissan Pathfinder vehicle.
  Power type [Engine/EV/HEV/PHEV]	Type of Nissan Pathfinder vehicle.
  Brand [Renault/Nissan/Infinity]	Brand Name.

Work support

Performs TCU activation setting, VIN data saving/writing and center connection setting.

If network initial settings are not completed, refer to the following for details of displayed numbers.

ECU Identification

Displays TCU part number and various ID numbers.

Configuration

Writes the vehicle specification when replacing TCU.

B2720 Corner Sensor [rl] ++Cruise Control System