Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: System Diagram

SYSTEM DIAGRAM

Transmitting ECU (Transmitter)

Receiving ECU

Signal

Communication Method

Skid control ECU (Brake actuator assembly)

Steering angle sensor (Spiral cable with sensor sub-assembly)

Steering angle sensor request signal

CAN communication system

Steering angle sensor (Spiral cable with sensor sub-assembly)

Skid control ECU (Brake actuator assembly)

Steering angle sensor signal

CAN communication system

Skid control ECU (Brake actuator assembly)

Yaw rate and acceleration sensor (Airbag sensor assembly)

Yaw rate and acceleration request signal

CAN communication system

Yaw rate and acceleration sensor (Airbag sensor assembly)

Skid control ECU (Brake actuator assembly)

Yaw rate and acceleration signal

CAN communication system

Skid control ECU (Brake actuator assembly)

ECM

  • Wheel speed signal
  • VSC data signal

CAN communication system

ECM

Skid control ECU (Brake actuator assembly)

  • Shift position signal
  • Throttle position signal
  • Engine speed signal
  • Intake air temperature signal
  • Engine torque request signal
  • Accelerator pedal position signal
  • Diagnosis (TC terminal) signal*4

CAN communication system

Skid control ECU (Brake actuator assembly)

Combination meter assembly

  • ABS warning light signal
  • Brake warning light signal
  • VSC OFF indicator light signal
  • Slip indicator light signal
  • TRAC OFF indicator light

CAN communication system

Wheel speed signal

Serial communication

4 wheel drive control ECU*3

Skid control ECU (Brake actuator assembly)

  • 4WD position signal*1
  • L4 position signal*1
  • Rear differential lock position signal*2

CAN communication system

  • *1: for 4WD
  • *2: w/ Rear Differential Lock
  • *3: for 4WD or with Rear Differential Lock
  • *4: w/o Toyota Safety Sense P
System Description
SYSTEM DESCRIPTION 1. FUNCTION DESCRIPTION (a) ABS (Anti-lock Brake System) (1) The ABS helps prevent the wheels from locking when the brakes are applied firmly or when braking on a slippery surf ...

Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS 1. CHECK FOR INTERMITTENT PROBLEMS HINT: A momentary interruption (open circuit) in the connectors and/or wire harnesses between the sensors and ECUs can be detect ...

Other materials:

Side Airbag Sensor RH Circuit Malfunction (B1620/21)
DESCRIPTION The side airbag sensor assembly RH consists of parts such as the safing sensor, the diagnostic circuit and the lateral deceleration sensor. When the airbag sensor assembly receives signals from the lateral deceleration sensor, it determines whether or not the SRS should be activate ...

Installation
INSTALLATION CAUTION / NOTICE / HINT CAUTION: Wear protective gloves. Sharp areas on the parts may injure your hands. HINT: Use the same procedure for both the RH and LH sides. The procedure described below is for the LH side. PROCEDURE 1. INSTALL FRONT SEAT AIRBAG ASSEMBLY ...

No Response from Steering Lock ECU (B2786)
DESCRIPTION This DTC is stored when LIN communication between the certification ECU (smart key ECU assembly) and steering lock ECU (steering lock actuator or upper bracket assembly) stops for 10 seconds or more. DTC No. DTC Detection Condition Trouble Area ...

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