3C
4WD Control System Component Functional Description
NOTE:
For air locking hub system component functional description, refer to 4WD Control System Component Functional Description:Front .
Transfer Control System
Part Name Function
4WD switch Detects whether transfer shift fork shaft No.1 is at 2H or 4H/4L.
4WD low switch Detects whether transfer shift fork shaft No.1 is at 2H/4H or 4L.
2WD/4WD switch
Shifts transfer shift position.
Consists of “2WD” switch, “4WD” switch and “4WD-L” switch.
“2WD” switch Shifts transfer from 4H to 2H or from 4L to 2H.
“4WD” switch Shifts transfer from 2H to 4H or from 4L to 4H.
“4WD-L” switch Shifts transfer from 4H to 4L or from 2H to 4L.
4WD indicator
Indicates whether transfer is at 4H/4L position or not.
Informs what state transfer control system is.
4WD low indicator
Indicates whether transfer is at 4L position or not.
Informs what state transfer control system is.
A/T shift switch (N position) (for A/T model) Detects whether A/T is at N range or not.
Clutch pedal switch Detects whether clutch pedal is depressed or not.
Warning buzzer Warns what state transfer control system is.
4WD control module
Controls transfer shifting.
Controls air locking hub operating
Operates 4WD indicator, 4WD low indicator and warning buzzer.
Diagnoses 4WD control system components.
Transfer shift actuator Consists of transfer shift actuator motor and transfer shift actuator limit switch.
Transfer shift actuator motor Shifts transfer shift position by operating shift fork shaft No.1 through pinion gear.
Transfer shift actuator limit switch Detects whether transfer shift actuator motor position.