Mazda CX-9 2007 Service Highlights page 161

CONTROLLER AREA NETWORK (CAN) OPERATION
Transmitted Information
• Coupling torque
• AWD system condition (warning light information)
Received Information
• Four-wheel speed
• Accelerator pedal opening angle
• Engine speed
• DSC/RSC operating condition
• Shift position
• Coupling torque request
End Of Sie
NG: 4WD CONTROL MODULE AWD CONTROL MODULE FUNCTION
• The AWD CM calculates the optimal amount of torque distribution for the rear wheels and outputs a
corresponding electric current to the electronic control coupling (AWD solenoid). This calculation is based on
the accelerator pedal angle, four-wheel speed, engine speed, and other related input signals, matched with the
vehicle driving and road surface conditions.
Function table
Function name
• Based on each input signal, the electronic control current sent to the electronic control coupling
AWD system control
function
• If the self-diagnostic system detects a malfunction, the AWD warning light illuminates to alert
Diagnostic system
• The detected malfunction is stored as a DTC in the AWD CM.
End Of Sie
AWD CONTROL MODULE CONSTRUCTION
• The AWD CM is installed to the left of the dashboard. (Driver side)
End Of Sie
ALL WHEEL DRIVE (AWD)
(AWD solenoid) is optimally controlled.
the driver, and at the same time the system suspends control or performs other measures to
prevent a loss of driving stability and protect the system.
Contents
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