Components Function Description

COMPONENTS FUNCTION DESCRIPTION

Component parts	Function
AWD control unit	Controls driving force distribution by signals from each sensor and switches from front wheel driving mode (100:0) to AWD mode (50:50). 2WD mode is available by fail-safe function if malfunction is detected in electrical system.
Wheel sensors	Detects wheel speed.
AWD solenoid	Controls electric controlled coupling by operation signal from AWD control unit.
Electric controlled coupling	Transmits driving force to rear final drive.
AWD mode switch	Able to select from 2WD, AUTO or LOCK mode.
AWD warning lamp	Illuminates if malfunction is detected in electrical system of AWD system. There is 1 blink in 2 seconds if rotation difference of front wheels and rear wheels is large. There are 2 blinks in 1 second if load is still applied to driving parts.
AWD indicator lamp	Indicates operation with optimal distribution of torque to front/rear wheels.
LOCK indicator lamp	Indicates that AWD system is under direct 4-wheel driving mode.
ABS actuator and electric unit (control unit) (without VDC) or VDC/TCS/ABS control unit (with VDC)	Transmits the following signals via CAN communication to AWD control unit. Vehicle speed signal Stop lamp switch signal (brake signal)
ECM	Transmits the following signals via CAN communication to AWD control unit. Accelerator pedal position signal Engine speed signal
Unified meter control unit	Transmits conditions of parking brake switch via CAN communication to AWD control unit.