Nissan Rogue (T33) 2021-Present Service Manual: System Description :: System. Sonar System

Sonar System

System Description

SYSTEM DIAGRAM

With 8" Color Display

With 12.3" Color Display

Sonar Control Unit Input Signal (CAN Communication)

Sonar Control Unit Output Signal (CAN Communication)

DESCRIPTION

• The sonar sensors installed in the front bumper and rear bumpers detect obstacles around the bumpers.

• The sonar control unit changes the buzzer cycle and warning indicator according to the distance from an obstacle detected by the sonar sensors.

SONAR SYSTEM ACTIVATION CONDITION

The sonar system warns the driver of the presence of obstacles when the following conditions are met.

×: Activation

×: Activation

OBSTACLE DETECTION DISTANCE

Warning Buzzer Frequency

• The warning buzzer output frequency changes in 4 levels according to the detection distance.

• As the Nissan Ariya vehicle approaches an obstacle, the buzzer-sounding cycle becomes shorter.

• 4 Sensor Models

  Obstacle detection range image

  A.

  Approx. 150 cm (59.06 in) (default value)

  B.

  Approx. 60 cm (23.62 in) (default value)

• 8 Sensor Models

  Obstacle detection range image

  A.

  Approx. 120 cm (47.24 in) (default value)

  B.

  Approx. 60 cm (23.62 in) (default value)

• 10 Sensor Models

  Obstacle detection range image

  A.

  Approx. 150 cm (59.06 in) (default value)

  B.

  Approx. 60 cm (23.62 in) (default value)

  C.

  Approx. 60 cm (23.62 in) (default value)

• Detection distance of an obstacle changes as shown in the table below.

  Detection distance

  Item (detection range)	Outer sensor	Side sensor	Front inner sensor	Rear inner sensor
  FAR	Approx. 66 cm (25.98 in)	Approx. 66 cm (25.98 in)	Approx. 110 cm (43.31 in)	Approx. 165 cm (64.96 in)
  NORMAL (default value)	Approx. 60 cm (23.62 in)	Approx. 60 cm (23.62 in)	Approx. 100 cm (39.37 in)	Approx. 150 cm (59.06 in)
  NEAR	Approx. 54 cm (21.26 in)	Approx. 54 cm (21.26 in)	Approx. 90 cm (35.43 in)	Approx. 135 cm (53.15 in)

Sonar Indicator

• The sonar indicator displays in three stages (green, yellow, and red), according to a distance from an obstacle.

  

• Sonar indicator distance display changes according to the following table.

  Status of warning	Detection distance
  	Outer sensor	Side sensor	Front inner sensor	Rear inner sensor
  Red	0 - 30 cm (0 - 11.81 in)	0 - 30 cm (0 - 11.81 in)	0 - 30 cm (0 - 11.81 in)	0 - 30 cm (0 - 11.81 in)
  Yellow	31 - 50 cm (12.2 - 19.69 in)	31 - 50 cm (12.2 - 19.69 in)	31 - 60 cm (12.2 - 23.62 in)	31 - 60 cm (12.2 - 23.62 in)
  Green	51 - 60 cm (20.08 - 23.62 in)	51 - 60 cm (20.08 - 23.62 in)	61 - 100 cm (24.02 - 39.37 in)	61 - 150 cm (24.02 - 59.06 in)

MAC (Message Authentication Code)

MAC (Message Authentication Code) is a function that prevents unauthorized communication by using secure authentication communication. Sonar control unit writes a MAC key required for communication between ECUs and performs MAC diagnosis.