Nissan Frontier. Manual - part 342
DLN-270
< SYSTEM DESCRIPTION >
[REAR FINAL DRIVE: M226 (ELD) ]
DIFFERENTIAL LOCK SYSTEM
System Diagram
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System Description
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The differential lock system consists of the following components
• Differential lock control unit
• Differential lock mode switch
• Differential lock position switch
• Differential lock solenoid
• ABS actuator and electric unit (control unit)
• Transfer control unit
DIFFERENTIAL LOCK SYSTEM OPERATION
When the differential lock mode switch is in the LOCK position, a signal is sent to the differential lock control
unit. The differential lock control unit monitors input from the ABS actuator and electric unit (vehicle speed and
VDC operation) and the transfer control unit (4WD shift switch). If conditions are set, the differential lock con-
trol unit provides power and ground to the differential lock solenoid to lock the differential. The differential lock
position switch provides feedback to the differential lock control unit as to whether the lock is engaged based
on pressure plate position. The differential lock control unit provides ground to the DIFF LOCK indicator lamp
to activate the lamp. Refer to the Owner’s Manual for differential lock system operating instructions.
As a fail-safe function, the differential lock disengages when a malfunction is detected in the differential lock
system. Self-diagnostics can be performed using CONSULT. Refer to
DLN-273, "DIFFERENTIAL LOCK CON-
TROL UNIT : CONSULT Function (DIFF LOCK)"
.
DIFFERENTIAL LOCK OPERATION
SDIA2500E
SDIA2498E