Toyota Tacoma manuals

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

SYSTEM DIAGRAM

Transmitting ECU (Transmitter)

Receiving ECU

Signals

Communication Method

ECM

Skid control ECU

  • Throttle position signal
  • Engine speed signal
  • Accelerator pedal position signal
  • Intake air temperature signal
  • Ambient air temperature signal
  • Engine coolant temperature signal
  • Vehicle information

CAN communication system

Yaw rate and acceleration sensor (Airbag sensor assembly)

Skid control ECU

Yaw rate and acceleration signal

CAN communication system

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

Skid control ECU

Steering angle signal

CAN communication system

Skid control ECU

ECM

Throttle opening angle request signal

CAN communication system

Skid control ECU

Combination meter assembly

  • Warning/indicator light signal
  • Vehicle speed signal
  • Warning buzzer request signal

CAN communication system

4 wheel drive control ECU (for 4WD or w/ Rear Differential Lock)

Skid control ECU

  • 4WD position signal (for 4WD)
  • L4 position signal (for 4WD)
  • Rear differential lock position signal (for w/ Rear Differential Lock)

CAN communication system

System Description
SYSTEM DESCRIPTION 1. SYSTEM DESCRIPTION HINT: The skid control ECU is built into the hydraulic brake booster. (a) ABS (Anti-lock Brake System) The ABS helps prevent the wheels from locking when ...

Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS 1. DESCRIPTION HINT: A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ECUs can be detected through the ECU dat ...

Other materials:

Operation Check
OPERATION CHECK INPUT SIGNAL CHECK *a +RES *b -SET *c ON-OFF *d CANCEL (a) Connect the Techstream to the DLC3. (b) Check the cruise control main switch using the Data List functio ...

Road Test
ROAD TEST 1. PROBLEM SYMPTOM CONFIRMATION (a) Based on the result of the customer problem analysis, try to reproduce the symptoms. If the problem is that the transmission does not shift up or down, or that the shift point is too high or too low, conduct the following road test referring to t ...

Fail-safe Chart
FAIL-SAFE CHART 1. PULSE FAILURE OR DISPLACEMENT OF NON-DETECTION RANGE TO THE OPENING DIRECTION (a) If the pulse sensor built into the power window regulator motor malfunctions, the power window control system enters fail-safe mode. Power Window Regulator Master Switch Assembly, Front Power Wi ...

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