Nissan X-Trail 32. Instruction — part 651
COMPONENT PARTS
DLN-15
< SYSTEM DESCRIPTION >
[TRANSFER: TY21C]
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4WD Control Unit
INFOID:0000000010991954
• Controls driving force distribution by signals from each sensor from
front wheel driving mode (100:0) to 4-wheel driving mode (50:50).
• Fail-safe mode is available if malfunction is detected in 4WD sys-
tem. For fail-safe, refer to
DLN-21, "4WD SYSTEM : Fail-Safe"
.
4WD ACTUATOR RELAY
4WD actuator relay is integrated with 4WD control unit, and supplies 4WD solenoid with voltage.
Electric Controlled Coupling
INFOID:0000000010991955
Electric controlled coupling is integrated with rear final drive and transmits driving force to rear final drive. For
operation, refer to
DLN-17, "Operation Description"
.
4WD Solenoid
INFOID:0000000010991956
• 4WD solenoid is integrated with electric controlled coupling.
• Controls electric controlled coupling by command current from 4WD control unit.
Combination meter
Mainly transmits the following signals to 4WD control unit via CAN communication.
• Parking brake switch signal
Mainly receives the following signals from 4WD control unit via CAN communication.
• 4WD warning lamp signal
• 4WD mode indicator lamp signal
• Torque distribution indicator signal
For detailed installation location, refer to
MWI-7, "METER SYSTEM : Component Parts
ABS actuator and electric unit (con-
trol unit)
Mainly transmits the following signals to 4WD control unit via CAN communication.
• Each wheel speed signal
• Decel G sensor signal
• Side G sensor signal
• Yaw rate sensor signal
For detailed installation location, refer to
BRC-14, "Component Parts Location"
4WD mode switch
Refer to
4WD control unit
• 4WD actuator relay
Refer to
.
Electric controlled coupling
Refer to
DLN-15, "Electric Controlled Coupling"
.
4WD solenoid
Refer to
No.
Component
Function
JSDIA6388ZZ
DLN-16
< SYSTEM DESCRIPTION >
[TRANSFER: TY21C]
COMPONENT PARTS
4WD Mode Switch
INFOID:0000000010991957
4WD mode is selectable among 2WD mode, AUTO mode, and
LOCK mode by operating the 4WD mode switch while the engine is
running.
JSDIA6389ZZ
STRUCTURE AND OPERATION
DLN-17
< SYSTEM DESCRIPTION >
[TRANSFER: TY21C]
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STRUCTURE AND OPERATION
Sectional View
INFOID:0000000010991958
Operation Description
INFOID:0000000010991959
POWER TRANSFER DIAGRAM
Transfer cover
Transfer case
Ring gear bearing (transfer case
side)
Ring gear shaft
Pinion bearing
Drive pinion
Companion flange
Ring gear
Ring gear bearing (transfer cover
side)
JSDIA3966ZZ
DLN-18
< SYSTEM DESCRIPTION >
[TRANSFER: TY21C]
STRUCTURE AND OPERATION
ELECTRIC CONTROLLED COUPLING
1.
The 4WD control unit supplies command current to electric con-
trolled coupling (4WD solenoid).
2.
The control clutch is engaged by electromagnet and torque is
detected in control clutch.
3.
The cam operates in response to control clutch torque and
applies pressure to main clutch.
4.
The main clutch transmits torque to front wheels according to
pressing power.
• Transmission torque to the rear wheels is determined accord-
ing to command current.
Engine
Transaxle
Transfer
Propeller shaft
Electric controlled coupling
Rear final drive
JSDIA0961ZZ
JSDIA0972GB
SDIA1844E
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