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:

Cellular Phone Registration Failure, Phone Directory Transfer Failure
PROCEDURE 1. CHECK OPERATION (a) Place the cellular phone close to the navigation receiver assembly. (b) Check if the cellular phone can be registered. OK: The cellular phone can be registered. OK NORMAL OPERATION ...

Initialization
INITIALIZATION 1. INITIALIZE SLIDING ROOF SYSTEM NOTICE: Before starting this operation, make sure that the guide rails are not deformed and there is no foreign matter on the guide rails. When the sliding roof glass sub-assembly or sliding roof drive cable sub-assembly is adju ...

Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include OBD (On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system. ■ If the malfunction indicator lamp comes on The OBD system determines that a problem exists somewhere in the emiss ...

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