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:

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE CONSOLE COMPARTMENT DOOR CUSHION HINT: Use the same procedure as for the opposite side. (a) Disengage the claw to remove the console compartment door cushion. 2. REMOVE CONSOLE COMPARTMENT DOOR SUB-ASSEMBLY ...

Central Gateway ECU Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Central Gateway ECU Communication Stop Mode Communication system DTCs (DTCs that start with U) that correspond to "Central Gateway ECU Communication Stop Mode" in "DTC Com ...

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT STEERING PAD (for Vehicle not Involved in Collision) (a) Perform a diagnostic system check (See page ). (b) With the steering pad installed on the vehicle, perform a visual check. If there are any defects as mentioned below, replace the steering pad ...