Mazda 6 MPS 2005, Training Manual Supplement, Page: 106 / 112

Driveline/Axle
4-Wheel Drive Control System Operation
•
Based on the signals listed below, the 4WD CM calculates the optimal amount of torque
distribution for the rear wheels and outputs a corresponding electric control current to the
electronic control coupling (4WD solenoid).
•
The 4WD CM controls the current to the 4WD solenoid by changing the rate of the
ON/OFF timing (duty signal).
•
PCM:
–
Accelerator pedal position *
–
Engine speed *
–
Transaxle neutral position *
•
DSC HU/CM:
–
Four-wheel speed *
–
DSC operating condition *
–
Coupling torque request *
–
Steering wheel angle *
–
Back-up light switch position *
–
Yaw rate *
–
Lateral-G *
•
Differential oil temperature sensor:
–
Rear differential oil temperature
•
Parking brake switch:
–
Parking brake position
•
In addition to that, the 4WD CM transmits information about coupling torque and 4WD
system condition (warning light information) using the CAN system.
* Transmitted as a CAN signal
03-26 Service Training Mazda6 MPS Supplement