Toyota Tacoma (2015-2018) Service Manual: System Diagram

Toyota Tacoma (2015-2018) Service Manual / Differential / Differential System(w/ Rear Differential Lock) / 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:

Power Source Mode does not Change to ON (IG and ACC)
DESCRIPTION If any of the following operations are performed, the certification ECU (smart key ECU assembly) receives a signal, and changes the power source mode. With the electrical key transmitter sub-assembly in the cabin, the engine switch is pressed. When the battery of the e ...

Data List / Active Test
DATA LIST / ACTIVE TEST 1. DATA LIST HINT: Using the Techstream to read the Data List allows values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may ...

Removal
REMOVAL PROCEDURE 1. REMOVE CLUTCH MASTER CYLINDER ASSEMBLY (See page ) 2. REMOVE TURN OVER SPRING SEAT COMPRESSION SPRING (a) Remove the compression spring. 3. REMOVE CLUTCH PEDAL SUB-ASSEMBLY (a) Remove the bolt and nut. ...