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:

Precaution
PRECAUTION 1. IGNITION SWITCH EXPRESSIONS (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 used in this section. Expression Ignition Switch (Position) Engine ...

Precaution
PRECAUTION 1. Check that the battery cables are connected to the correct terminals. 2. Disconnect the battery cables when the battery is given a quick charge. 3. Do not perform tests with a high voltage insulation resistance tester. 4. Never disconnect the battery while the engine is running. 5 ...

Disassembly
DISASSEMBLY PROCEDURE 1. INSPECT CONNECTING ROD THRUST CLEARANCE (a) Using a dial indicator, measure the thrust clearance while moving the connecting rod back and forth. Standard thrust clearance: 0.15 to 0.40 mm (0.00591 to 0.0157 in.) Maximum thrust clearance: 0.50 ...

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