Nissan X-Trail 32. Manual - part 1622

PB-14

< SYSTEM DESCRIPTION >

SYSTEM

INPUT SIGNAL AND OUTPUT SIGNAL

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

JSFIA2500GB

Component

Signal description

Combination meter

Mainly transmits the following signal to electric parking brake control module via CAN 
communication.
• Seat belt buckle switch (driver side) signal
Mainly receives the following signals from electric parking brake control module via 
CAN communication.
• Electric parking brake indicator lamp signal
• Brake system warning lamp signal
• Master warning lamp signal
• Electric parking brake display request signal

ABS actuator and electric unit (control unit)

Mainly transmits the following signal to electric parking brake control module via CAN 
communication.
• Rear LH wheel speed signal
• Rear RH wheel speed signal
• VDC operation signal
• Brake fluid pressure signal
• ABS operation signal

IPDM E/R

Mainly transmits the following signal to electric parking brake control module via CAN 
communication.
• Ignition switch ON signal

ECM

Mainly transmits the following signal to electric parking brake control module via CAN 
communication.
• Engine speed signal
• Engine torque signal

SYSTEM

PB-15

< SYSTEM DESCRIPTION >

C

D

E

G

H

I

J

K

L

M

A

B

PB

N

O

P

*: CVT models

ELECTRIC PARKING BRAKE OPERATION

Normal Operation

• When the parking brake switch is pulled while the vehicle is stopped, the parking brake begins to be applied.

(The motor in the parking brake actuator starts generating rotating torque.)

• When the parking brake braking force reaches the prescribed value (rotating torque generated by the motor

in the parking brake actuator), the electric parking brake indicator lamp turns ON.

• When the ignition switch is turned OFF.

NOTE:
Braking force of the parking brake is held. 

Automatic Operation

TCM

*

Mainly transmits the following signal to electric parking brake control module via CAN 
communication.
• Target gear position signal

BCM

Mainly transmits the following signal to electric parking brake control module via CAN 
communication.
• Stop lamp switch signal
• Steering lock status signal
• Wake up sleep command signal
• Door switch (driver side) signal

Component

Signal description

JSFIA2437GB

PB-16

< SYSTEM DESCRIPTION >

SYSTEM

The parking brake automatically operation when vehicle is under the following conditions. 
• Vehicle stop status
• Ignition switch is OFF
• “AUTO ACTIVATION ON” of “WORK SUPPORT” result is “AVAILABLE” (CVT models)

Normal Release (ignition switch ON)

• The parking brake is released when the parking brake switch is pushed while the brake pedal is depressed,

the ignition switch is ON, and the parking brake is operating. 

JSFIA2491GB

JSFIA2439GB

SYSTEM

PB-17

< SYSTEM DESCRIPTION >

C

D

E

G

H

I

J

K

L

M

A

B

PB

N

O

P

NOTE:
Just pushing the parking brake switch does not release the parking brake.

• When release of the parking brake is completed (rotating torque generated by the motor in the parking brake

actuator stops), the electric parking brake indicator lamp turns OFF.

Normal Release (Ignition Switch OFF)

• The parking brake cannot be released by just pushing the parking brake switch while the ignition switch is

OFF, the parking brake is applied, and the brake pedal is being depressed. 
NOTE:
• Just pushing the parking brake switch does not release the parking brake.
• The parking brake can be released by turning ON the ignition switch and pushing the parking brake switch

while depressing the brake pedal. 

• The electric parking brake indicator lamp turns OFF.

NOTE:
Braking force of the parking brake is in the hold status. 

Automatic Release

JSFIA2440GB