Nissan X-Trail 32. Manual - part 388

DAS

SYSTEM

DAS-293

< SYSTEM DESCRIPTION >

[PARK ASSIST]

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• The around view monitor control unit calculates the trajectory needed to move to the final parking space (tar-

get parking rectangle), and the required amount of steering rotation, and performs the following control.

- The forward/reverse starting position rectangle (green) and target parking rectangle (blue) are set based on

internal calculations and the shift position signal, and the camera image signal is transmitted to the NAVI
control unit in order to show the target position in the display.

- The target steering angle is calculated based on the vehicle speed signal, steering angle sensor signal, and

shift position signal. The system transmits the steering angle command via CAN communication to the EPS
control unit for performing steering.

- Buzzer drive signal is transmitted to the sonar control unit via CAN communication for outputting the buzzer.
- The sonar indicator display signal is received by CAN communication from the sonar control unit. If an

obstacle is present, the camera image signal is transmitted to the NAVI control unit and a warning is shown
in the display. For sonar functions, refer to 

SN-124, "SONAR SYSTEM : System Description"

.

Operation Condition

Park Assist switch ON conditions

• The engine is started
• The around view monitor screen (top view) is displayed on the display
• The vehicle speed is less than 30 km/h (18.6 MPH) (Except reverse range/gear)
• The vehicle speed is less than 10 km/h (6.2 MPH) (Reverse range/gear)

Start switch ON conditions

• Vehicle speed is 0 km/h (0 MPH) (vehicle is completely stopped)
• Steering wheel position is straight-ahead
• Selector lever is in the D position.

The Park Assist is deactivated under the following conditions:

• When the steering wheel is operated manually
• When the shift lever is placed in the P range (CVT model).
• When 5 seconds have passed since the shift lever was placed and kept in the N range/neutral position.
• When reverse operations are conducted more than 10 times for steering corrections.
• When the system judges that the conditions (such as worn out or low pressure tires, road conditions, etc.)

are not suitable for correct course predictions.

• When the vehicle backs up to a position behind the place from which Park Assist operation started.
• When the vehicle passes the reverse starting position by over 2 m (7 ft).
• When the vehicle speed exceeds approximately 7 km/h (4 MPH).
• When the parking operation by the driver deviates from the Park Assist guidance to some extent.

OPERATION DESCRIPTION (PARALLEL PARKING)

• The sonar control unit detects parking space and performs the Park Assist.
• The sonar control unit calculates the space needed to move to the final parking space, and the required

amount of steering rotation, and performs the following control.

- The target steering angle is calculated based on the vehicle speed signal, steering angle sensor signal, and

shift position signal/shift lever position. The system transmits the steering angle command via CAN commu-
nication to the EPS control unit for performing steering.

- Outputting the buzzer.
- If an obstacle is present, the camera image signal is transmitted to the NAVI control unit and a warning is

shown in the display. For sonar functions, refer to 

SN-124, "SONAR SYSTEM : System Description"

.

Operation Condition

Park Assist switch ON conditions

• The engine is started
• The around view monitor screen (top view) is displayed on the display
• The vehicle speed is less than 30 km/h (18.6 MPH) (Except reverse range/gear)
• The vehicle speed is less than 10 km/h (6.2 MPH) (Reverse range/gear)

Start switch ON conditions

• Vehicle speed is 0 km/h (0 MPH) (vehicle is completely stopped)
• Steering wheel position is straight-ahead
• Selector lever is in the D position.

The Park Assist is deactivated under the following conditions:

• When the steering wheel is operated manually.
• When the shift lever is placed in the P range (CVT model).

DAS-294

< SYSTEM DESCRIPTION >

[PARK ASSIST]

SYSTEM

• When 5 seconds have passed since the shift lever was placed and kept in the N range/neutral position.
• When the system judges that the conditions (such as worn out or low pressure tires, road conditions, etc.)

are not suitable for correct course predictions.

• When the vehicle speed exceeds approximately 7 km/h (4 MPH).
• When the parking operation by the driver deviates from the Park Assist guidance to some extent.

Circuit Diagram

INFOID:0000000010721643

WITHOUT BSW SYSTEM

JSOIA1641GB

DAS

SYSTEM

DAS-295

< SYSTEM DESCRIPTION >

[PARK ASSIST]

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WITH BSW SYSTEM

Fail-Safe (Around View Monitor Control Unit)

INFOID:0000000010752982

JSOIA1642GB

DTC

Display contents of CONSULT

Malfunction detection condition

Fail-safe condition

C1A00
CONTROL UNIT

Around view monitor control unit internal mal-
function

Around view monitor with Park Assist is can-
cel

C1A01
POWER SUPPLY CIRC

• The battery voltage sent to around view mon-

itor control unit remains less than 7.9 V for 5 
seconds

• The battery voltage sent to around view mon-

itor control unit remains more than 19.3 V for 
5 seconds

Around view monitor with Park Assist is can-
cel

C1A03
VHCL SPEED SE CIRC

If the vehicle speed signal (wheel speed) from 
ABS actuator and electric unit (control unit) re-
ceived by the around view monitor control unit 
via CAN communication, are inconsistent

• BSW system is cancel
• DAA system is stopped.
• MOD (Moving Object Detection) function is 

cancel

• Around view monitor with Park Assist is 

cancel

DAS-296

< SYSTEM DESCRIPTION >

[PARK ASSIST]

SYSTEM

C1A04
ABS/TCS/VDC CIRC

If a malfunction occurs in the VDC/TCS/ABS 
system

• BSW system is cancel
• DAA system is stopped.
• MOD (Moving Object Detection) function is 

cancel

• Around view monitor with Park Assist is 

cancel

C1A07
CVT CIRCUIT

If the CVT is malfunction

Around view monitor with Park Assist is can-
cel

C1A39
STRG SEN CIR

If the steering angle sensor is malfunction

• BSW system is cancel
• DAA system is stopped.
• MOD (Moving Object Detection) function is 

cancel

C1A56
SONAR CIRC

The around view monitor control unit detects 
that sonar control unit has a malfunction

Around view monitor with Park Assist is can-
cel

U0122
VDC P-RUN DIAGNOSIS

If around view monitor control unit detects an 
error signal that is received from ABS actuator 
and electric unit (control unit) via CAN commu-
nication

• BSW system is cancel
• DAA system is stopped.
• MOD (Moving Object Detection) function is 

cancel

• Around view monitor with Park Assist is 

cancel

U0416
VDC CHECKSUM DIAGNOSIS

If around view monitor control unit detects an 
error signal that is received from ABS actuator 
and electric unit (control unit) via CAN commu-
nication

• BSW system is cancel
• DAA system is stopped.
• MOD (Moving Object Detection) function is 

cancel

• Around view monitor with Park Assist is 

cancel

U0428
ST ANGLE SENSOR CALIBRA-
TION

Neutral position adjustment of steering angle 
sensor is not complete.

• Predicted course line is not displayed.
• MOD (Moving Object Detection) function is 

stopped.

• BSW system is stopped.
• DAA system is stopped.
• Around view monitor with Park Assist is 

stopped

U1000
CAN COMM CIRCUIT

When around view monitor control unit cannot 
transmit/receive CAN communication signal 
continuously for 2 seconds or more.

The following functions are stopped
• When communication of steering angle 

sensor signal is not normal

- Predicted course line is not displayed.
- MOD (Moving Object Detection) function is 

stopped.

- BSW system is stopped.
- DAA system is stopped.
• When communication of vehicle signal, 

wheel speed sensor signal, and shift signal 
is not normal

- Predicted course line is not displayed.
- MOD (Moving Object Detection) function is 

stopped.

- LDW system is stopped.
- BSW system is stopped.
- DAA system is stopped.
- Around view monitor with Park Assist is 

stopped

U1010
CONTROL UNIT (CAN)

CAN initial diagnosis malfunction is detected.

MOD (Moving Object Detection) function is 
stopped.

U111A
REAR CAMERA IMAGE SIGNAL

No-signal status of rear camera image signal is 
continued for 500 ms or more while ignition 
switch is ON.
NOTE:
Current malfunction is displayed only and is not 
saved.

• Camera image is not displayed (Gray 

screen display).

• MOD (Moving Object Detection) function is 

stopped.

DTC

Display contents of CONSULT

Malfunction detection condition

Fail-safe condition