4-WHEEL DRIVE COMPONENTS AND FUNCTIONS

id031800165300

Part name

Function

Electronic control coupling (4WD solenoid)

•  Based on a signal from the 4WD CM, it operates the electromagnetic clutch and transmits drive torque to the rear wheels.

Differential oil temperature sensor

•  Informs the 4WD CM of the rear differential oil temperature.

4WD CM

•  Controls operation of the electronic control coupling (4WD solenoid) based on signals input from the accelerator pedal opening angle, wheel speed, differential oil temperature and other sensors.

•  Outputs coupling control condition and 4WD warning control information as a CAN signal.

•  Controls the on-board diagnostic system and the fail-safe system if there is a malfunction in the 4WD system.

4WD warning light

•  Illuminates or flashes to alert driver of a malfunction or control failure in the 4WD system.

PCM

•  Sends the accelerator pedal opening angle, engine speed signal and other signals, as CAN signals, to the 4WD CM.

TCM

•  Sends the gear position signal and other signals, as CAN signals, to the 4WD CM.

DSC/RSC HU/CM

•  Sends the four-wheel speed, DSC/RSC operating condition signal, steering wheel angle signal and other signals, as CAN signals, to the 4WD CM.

•  Sends the coupling torque request signal, as a CAN signal, to the 4WD CM.

Instrument cluster

•  Sends the parking brake switch signal, as CAN signal, to the 4WD CM.

Part name	Function
Electronic control coupling (4WD solenoid)	• Based on a signal from the 4WD CM, it operates the electromagnetic clutch and transmits drive torque to the rear wheels.
Differential oil temperature sensor	• Informs the 4WD CM of the rear differential oil temperature.
4WD CM	• Controls operation of the electronic control coupling (4WD solenoid) based on signals input from the accelerator pedal opening angle, wheel speed, differential oil temperature and other sensors. • Outputs coupling control condition and 4WD warning control information as a CAN signal. • Controls the on-board diagnostic system and the fail-safe system if there is a malfunction in the 4WD system.
4WD warning light	• Illuminates or flashes to alert driver of a malfunction or control failure in the 4WD system.
PCM	• Sends the accelerator pedal opening angle, engine speed signal and other signals, as CAN signals, to the 4WD CM.
TCM	• Sends the gear position signal and other signals, as CAN signals, to the 4WD CM.
DSC/RSC HU/CM	• Sends the four-wheel speed, DSC/RSC operating condition signal, steering wheel angle signal and other signals, as CAN signals, to the 4WD CM. • Sends the coupling torque request signal, as a CAN signal, to the 4WD CM.
Instrument cluster	• Sends the parking brake switch signal, as CAN signal, to the 4WD CM.