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Home >> Toyota >> 2009 >> Matrix Base, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Transfer Case MF1A/4WD/AWD) >> Active Torque Control 4WD System >> System Diagram
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System Diagram

WARNING: This page is about a different variant/trim than selected.
Fig 1: Active Torque Control 4WD System Diagram
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Communication Table 

COMMUNICATION CHART

Transmitting ECU Receiving ECU Signal Communication Method
Skid control ECU 4WD Control ECU
  • Wheel speed sensor signal
  • Stop light switch signal
  • Deceleration Sensor signal
 CAN communication system
ECM 4WD Control ECU
  • Shift position sensor signal
  • Throttle position sensor signal
  • Crank position sensor signal
 CAN communication system
Main body ECU 4WD Control ECU Parking brake switch signal CAN communication system
4WD Control ECU Combination meter 4WD warning light signal CAN communication system
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