Nissan X-Trail 32. Manual - part 1889

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< SYSTEM DESCRIPTION >

[WITHOUT PARK ASSIST]

COMPONENT PARTS

Sonar Sensor

INFOID:0000000010735537

When a distance from an obstacle is detected, a distance signal is
transmitted to the sonar control unit.

Buzzer

INFOID:0000000010735538

• The warning buzzer sounds with the signal from the sonar control

unit.

• Buzzer (front ward) is installed to instrument lower panel LH (LHD

models) or instrument lower panel RH (RHD models).

• Buzzer (backward) is installed inside the luggage side lower fin-

isher LH.
 

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SYSTEM

SONAR SYSTEM

SONAR SYSTEM : System Description

INFOID:0000000010735539

SYSTEM DIAGRAM

*1: M/T models
*2: CVT models 
*3: With around view monitor system

Sonar Control Unit Input Signal (CAN Communication)

Sonar Control Unit Output Signal (CAN Communication)

DESCRIPTION

Without around view monitor system

• The sonar sensor installed to the front bumper and the rear bumper detects obstacles around the bumper.

JSNIA7288GB

Transmit unit

Signal name

IPDM E/R (M/T models)

Gear position signal

TCM (CVT models)

Shift position signal

ABS actuator and electric unit (control unit)

Vehicle speed signal (ABS)

Combination meter

System setting signal

Receiver unit

Signal name

Combination meter

• Sonar indicator display signal
• Parking sensor error signal

Around view monitor control unit (with around view monitor sys-
tem)

Sonar indicator display signal

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< SYSTEM DESCRIPTION >

[WITHOUT PARK ASSIST]

SYSTEM

• The sonar control unit changes the buzzer cycle and the warning of the sonar indicator (combination meter),

according to a distance from an obstacle detected by the sonar sensor.

• The sonar control unit controls the buzzer cycle according to a buzzer drive signal. 
• The sonar control unit controls the sonar indicator according to a sonar indicator display signal transmitted to

the combination meter via CAN communication. 

With around view monitor system

• The sonar sensor installed to the front bumper and the rear bumper detects obstacles around the bumper.
• The sonar control unit changes the buzzer cycle and the warning of the sonar indicator (combination meter

and NAVI control unit display), according to a distance from an obstacle detected by the sonar sensor.

• The sonar control unit controls the buzzer cycle according to a buzzer drive signal. 
• The sonar control unit controls the sonar indicator according to a sonar indicator display signal transmitted to

the combination meter and the around view monitor control unit via CAN communication. 

SONAR SYSTEM ACTIVATION CONDITION

The sonar system warns the driver of the presence or absence of obstacles by buzzer and the sonar indicator
when the following conditions are satisfied while the ignition switch is turned ON.

×

: Activation

NOTE:
• When a sonar system switch is turned OFF, obstacle detection function stops. 
• When an obstacle is detected by the sensor, Buzzer sounds.
• The sonar control unit activates the warning buzzer for approximately 0.5 seconds after detecting the

reverse signal.

• The following items can be set for the sonar system on the settings screen of the combination meter.
- Only ON/OFF/Fr of sonar sensor
- Detection range of sonar sensor
- Buzzer  volume

OBSTACLE DETECTION DISTANCE

• The sonar control unit changes a buzzer cycle and a sonar indicator indication according to a distance from

an obstacle.

Obstacle detection range image

Sonar activation condition

Sonar operation

Sonar system 

switch indicator

Shift position

Vehicle speed

Obstacle detect-

ing sensor

Buzzer

Sonar indicator

Front

Rear

ON

R

Approx. 10 km/h 

(6.2 MPH) or less

Front sensor

×

×

Rear sensor

×

×

D

Front sensor

×

×

Rear sensor

—

—

—

OFF

—

—

—

—

—

—

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• Detection distance of an obstacle changes, as shown in the table below, when the detection sensitivity is

changed on the settings screen of the information display of the combination meter. Refer to 

MWI-71,

"INFORMATION DISPLAY : System Description"

.

Detection distance

Sonar Indicator

• Sonar indicator is displayed on the information display in combina-

tion meter.

• The sonar control unit displays a warning on sonar indicator in 3 stages (green, yellow, and red), according

to a distance from an obstacle. 
NOTE:
• A distance from an obstacle is also displayed on the information display of the combination meter.
• Sonar indicator is displayed also on Bird-Eye view and Front-

side view screen of around view monitor.

• Warning displayed on the sonar indicator and a distance change according to a distance between an obsta-

cle and sensor as shown in the following table.

Detection distance (default value)

Warning Buzzer

• The warning buzzer output frequency changes levels according to the detection distance.
• As the vehicle approaches an obstacle, the buzzer-sounding cycle becomes shorter.

A.

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

B.

Approx. 100 cm (39.37 in) 
(default value)

C.

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

Item (detection range)

Corner sensor

Front center sensor

Rear center sensor

FAR

60 cm (23.62 in) + 10%

100 cm (39.37 in) + 10%

150 cm (59.06 in) + 10%

NORMAL (default value)

Approx. 60 cm (23.62 in)

Approx. 100 cm (39.37 in)

Approx. 150 cm (59.06 in)

NEAR

60 cm (23.62 in) 

−

 10%

100 cm (39.37 in) 

−

 10%

150 cm (59.06 in) 

−

 10%

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Status of warning

Detection distance

Corner sensor

Front center sensor

Rear center sensor

Red

0 – 30 cm

(0 in – 11.81 in)

0 – 30 cm

(0 in – 11.81 in)

0 – 30 cm

(0 in – 11.81 in)

Yellow

31 – 50 cm

(12.2 in – 19.69 in)

31 – 60 cm

(12.2 in – 23.62 in)

31 – 60 cm

(12.2 in – 23.62 in)

Green

51 – 60 cm

(20.08 in – 23.62 in)

61 – 100 cm

(24.02 in – 39.37 in)

61 – 150 cm

(24.02 in – 59.06 in)