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System Diagram [08/2019 - 08/2021]

Fig 1: Transfer System Wiring Diagram (1 Of 3)
GTY957223Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Transfer System Wiring Diagram (2 Of 3)
GTY956754Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Transfer System Wiring Diagram (3 Of 3)
GTY957189Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Transmitting ECU (Transmitter) Receiving ECU Signal Communication Method
4 wheel drive control ECU Skid control ECU (Master cylinder solenoid)
  • High-low actuator failure signal
  • L4 status signal
  • 4WD status signal
 CAN communication system
Skid control ECU (Master cylinder solenoid) 4 wheel drive control ECU
  • Wheel speed sensor error signal
  • Wheel speed signal
  • Vehicle speed signal
  • Stop light switch signal
 CAN communication system
4 wheel drive control ECU ECM
  • Cruise control cancel request signal
  • L4 status signal
  • Center Differential Lock status signal
 CAN communication system
ECM 4 wheel drive control ECU
  • ENG fail signal
  • Engine speed signal
  • Shift position P signal
  • Shift position N signal
 CAN communication system
4 wheel drive control ECU Combination meter assembly
  • L4 indicator ON and flashing request signal
  • Center differential lock indicator ON and flashing request signal
  • Buzzer sound demand signal
 CAN communication system
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