M–14
ELECTRONIC 4WD CONTROL SYSTEM
End Of Si e
4WD SYSTEM CONTROL
A6E632227100206
Outline
Features
• Based on the inputted 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 module controls the current outputted to the 4WD solenoid by changing the rate of the ON/OFF timing.
Construction
Block diagram
.
Signal output part Signal name Note
PCM
Throttle opening angle
Engine speed
Transmitted as a CAN signal
TCM
Selector lever position
Gear position
DSC HU/CM
Four-wheel speed
DSC operating condition
Coupling torque request (DSC equipped vehicles)
Differential oil temperature
sensor
Rear differential oil temperature —
9
8
7
5
4
3
10
14
13
11
12
6
1
2
A6E63222009
1PCM
2TCM
3 DSC HU/CM
4 Differential oil temperature sensor
5 Throttle opening angle
6 Engine speed
7 Selector lever position
8 Gear position
9 Four-wheel speed
10 DSC operating condition
11 Coupling torque request (DSC equipped vehicles)
12 Rear differential oil temperature
13 4WD control modure (4WD CM)
14 Electronic control coupling (4WD solenoid)
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