Nissan X-Trail 32. Manual - part 145

BRC-46

< SYSTEM DESCRIPTION >

[WITH VDC (ESP)]

SYSTEM

C1120

The following functions are suspended.
• VDC function
• TCS function
• ABS function
• EBD function
• Brake limited slip differential (BLSD) function
• Brake assist function
• Brake force distribution function
• hill start assist function

• Advanced hill descent control function

*1

• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

C1121

C1122

C1123

C1124

C1125

C1126

C1127

C1130

The following functions are suspended.
• VDC function
• TCS function
• Brake limited slip differential (BLSD) function
• Brake force distribution function
• hill start assist function

• Advanced hill descent control function

*1

• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

C1140

The following functions are suspended.
• VDC function
• TCS function
• ABS function
• EBD function
• Brake limited slip differential (BLSD) function
• Brake assist function
• Brake force distribution function
• hill start assist function

• Advanced hill descent control function

*1

• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

C1142

The following functions are suspended.
• VDC function
• TCS function
• Brake limited slip differential (BLSD) function
• Brake assist function
• Brake force distribution function
• hill start assist function

• Advanced hill descent control function

*1

• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

C1143

The following functions are suspended.
• VDC function
• TCS function
• Brake limited slip differential (BLSD) function
• Brake force distribution function
• hill start assist function

• Advanced hill descent control function

*1

• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

C1144

DTC

Fail-safe condition

SYSTEM

BRC-47

< SYSTEM DESCRIPTION >

[WITH VDC (ESP)]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1145

The following functions are suspended.
• VDC function
• TCS function

• ABS function

*1

• Brake limited slip differential (BLSD) function

• Brake assist function

*1

• Brake force distribution function
• hill start assist function

• Advanced hill descent control function

*1

• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

C1146

C1153

The following functions are suspended.
• VDC function
• TCS function
• ABS function
• Brake limited slip differential (BLSD) function
• Brake assist function
• Brake force distribution function
• hill start assist function

• Advanced hill descent control function

*1

• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

C1154

The following functions are suspended.
• VDC function
• TCS function
• Brake limited slip differential (BLSD) function
• Brake force distribution function
• hill start assist function

• Advanced hill descent control function

*1

• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

C1155

The following functions are suspended.
• VDC function
• TCS function
• Brake limited slip differential (BLSD) function
• Brake assist function
• Brake force distribution function
• hill start assist function

• Advanced hill descent control function

*1

• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

C1160

The following functions are suspended.
• VDC function
• TCS function

• ABS function

*1

• Brake limited slip differential (BLSD) function

• Brake assist function

*1

• Brake force distribution function
• hill start assist function

• Advanced hill descent control function

*1

• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

DTC

Fail-safe condition

BRC-48

< SYSTEM DESCRIPTION >

[WITH VDC (ESP)]

SYSTEM

*1: 4WD models with gasoline engine
*2: When a malfunction detected in CAN communication [between ABS actuator and electric unit (control unit)
and chassis control module].

VDC (ESP) FUNCTION

VDC (ESP) FUNCTION : System Description

INFOID:0000000010723634

• Side slip or tail slip may occur while driving on a slippery road or intending an urgent evasive driving. VDC

function detects side slip status using each sensor when side slip or tail slip is about to occur and improves
vehicle stability by brake control and engine output control during driving.

• In addition to TCS function, ABS function and EBD function, target side slip amount is calculated according

to steering operation amount from steering angle sensor and brake operation amount from pressure sensor.
By comparing this information with vehicle side slip amount that is calculated from information from yaw rate/
side G sensor and wheel sensor, vehicle driving conditions (conditions of understeer or oversteer) are
judged and vehicle stability is improved by brake force control on all 4 wheels and engine output control.

• VDC function can be switched to non-operational status (OFF) by operating VDC OFF switch. In this case,

VDC OFF indicator lamp turns ON.

C1164

The following functions are suspended.
• VDC function
• TCS function
• ABS function
• EBD function
• Brake limited slip differential (BLSD) function
• Brake assist function
• Brake force distribution function
• hill start assist function

• Advanced hill descent control function

*1

• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

C1165

C1166

C1167

C1170

C1197

Electrical vacuum assistance of brake booster is suspended

C1198

C1199

Normal control

C119A

Electrical vacuum assistance of brake booster is suspended

C1B60

The following functions are suspended.
• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

U1000

The following functions are suspended.
• VDC function
• TCS function

• ABS function

*2

• EBD function

*2

• Brake limited slip differential (BLSD) function
• Brake assist function
• Brake force distribution function
• hill start assist function

• Advanced hill descent control function

*1

• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

U1002

U1010

DTC

Fail-safe condition

JSFIA0672GB

SYSTEM

BRC-49

< SYSTEM DESCRIPTION >

[WITH VDC (ESP)]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

• Control unit portion automatically improves driving stability by performing brake force control as well as

engine output control, by transmitting drive signal to actuator portion according to difference between target
side slip amount and vehicle side slip amount.

• VDC warning lamp blinks while VDC function is in operation and indicates to the driver that the function is in

operation.

• CONSULT can be used to diagnose the system diagnosis.
• Fail-safe function is adopted. When a malfunction occurs in VDC function, the control is suspended for VDC

function, TCS function, brake limited slip differential (BLSD) function, brake assist function, brake force dis-
tribution function, hill start assist function, advanced hill descent control function (4WD models with gasoline
engine), active trace control function (control of chassis control module) and active ride control function (con-
trol of chassis control module). The vehicle status becomes the same as models without VDC function, TCS
function, brake limited slip differential (BLSD) function, brake assist function, brake force distribution func-
tion, hill start assist function, advanced hill descent control function (4WD models with gasoline engine),
active trace control function (control of chassis control module) and active ride control function (control of
chassis control module). However, ABS function and EBD function are operated normally. Refer to 

BRC-43,

"Fail-Safe"

.

NOTE:
VDC has the characteristic as described here, This is not the device that helps reckless driving.

SYSTEM DIAGRAM

NOTE:
• 4WD control unit is applied to 4WD models.
• TCM is applied to CVT models.

INPUT SIGNAL AND OUTPUT SIGNAL

Major signal transmission between each unit via communication lines is shown in the following table.

JSFIA2367GB