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
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