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)

  • Rear differential lock status signal
  • 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

Combination meter assembly

  • Rear differential lock indicator light signal
  • Buzzer signal

CAN communication system

  • *: for 4WD
Precaution
PRECAUTION 1. IGNITION SWITCH EXPRESSION (a) The type of ignition switch used on this model differs depending on the specifications of the vehicle. The expressions listed in the table below are us ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use the following procedure listed to troubleshoot the differential system (w/ Differential Lock). *: Use the Techstream. PROCEDURE 1 ...

Other materials:

Installation
INSTALLATION PROCEDURE 1. INSTALL RADIATOR ASSEMBLY (a) Engage the 2 hooks and temporarily install the radiator assembly to the radiator support sub-assembly. (b) Install the radiator assembly with the 4 bolts. Torque: 18 N·m {184 kgf·cm, 13 ft·lbf} 2. INSTALL FAN SHROUD (a) Install th ...

Lost Communication With ECM/PCM "A" Missing Message (U010087)
DESCRIPTION The engine control unit and transmission control unit are located inside the ECM. The engine control unit intercommunicates with the transmission control ECU via CAN communication. If there is a problem in this intercommunication, the ECM stores this DTC. DTC Code ...

Precaution
PRECAUTION HANDLING PRECAUTION FOR CRUISE CONTROL SYSTEM (a) Turn the cruise control system off using the cruise control main switch (ON-OFF button) when not using the cruise control system. (b) Be careful as the vehicle speed increases when driving downhill with the cruise control system con ...

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