Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: System Diagram

SYSTEM DIAGRAM

Transmitting ECU (Transmitter)

Receiving ECU

Signal

Communication Method

4 wheel drive control ECU

Skid control ECU (Brake actuator assembly)

  • High-Low actuator fail
  • 4WD status signal
  • L4 status signal

CAN communication system

Skid control ECU (Brake actuator assembly)

4 wheel drive control ECU

  • Wheel speed sensor error signal
  • Wheel speed signal
  • Vehicle speed signal
  • Vehicle speed status flag

CAN communication system

4 wheel drive control ECU

ECM

  • Cruise control cancel request signal
  • 4WD status signal

CAN communication system

ECM

4 wheel drive control ECU

  • Shift position N signal
  • Neutral position switch error flag

CAN communication system

4 wheel drive control ECU

Combination meter assembly

  • 4LO indicator light signal
  • Multi-information display (4WD malfunction and front differential oil temperature warning related messages) signals
  • Warning buzzer signal

CAN communication system

System Description
SYSTEM DESCRIPTION 1. DESCRIPTION A part-time 2-speed VF2CM transfer uses a touch select 2-4 and high-low system, enabling the driver to switch between 2WD, H4 and L4 modes by turning ...

Diagnosis System
DIAGNOSIS SYSTEM 1. DESCRIPTION The 4 wheel drive control ECU records DTCs when the ECU detects a malfunction in the ECU itself or in system circuits. The DTCs can be read through the DLC3 of the ...

Other materials:

Disassembly
DISASSEMBLY CAUTION / NOTICE / HINT HINT: The procedure described below is for the LH side. Use the same procedure for both the LH and RH sides, unless otherwise specified. PROCEDURE 1. REMOVE REAR SEATBACK COVER (a) Remove the 2 screws. ...

Cruise Main Indicator Light Circuit
DESCRIPTION When the dynamic radar cruise control system is turned on using the cruise control main switch (ON-OFF button), the cruise control indicator (vehicle-to-vehicle distance control mode) illuminates. The ECM uses this and other indicators to indicate the control condition (presence o ...

System Description
SYSTEM DESCRIPTION 1. ILLUMINATED ENTRY SYSTEM (a) The illuminated entry system has the following control functions: Control Outline Lights that Operate Actuation Area-linked*1 When a registered key enters any actuation area around the ...

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