Toyota 4Runner manuals

Toyota 4Runner: System Diagram

SYSTEM DIAGRAM

w/ Smart Key System

No.

ECU/Sensor Name

1

Combination meter assembly

2

Skid control ECU (master cylinder solenoid)*1

3

Main body ECU (multiplex network body ECU)

4

Airbag sensor assembly

5

Steering angle sensor (spiral cable sub-assembly)

6

DLC3

7

Navigation receiver assembly*2 or radio and display receiver assembly*3

8

Certification ECU (smart key ECU assembly)

9

Power management control ECU

10

Yaw rate sensor assembly

11

Power steering ECU assembly

12

Four wheel drive control ECU*1

13

Skid control ECU (brake actuator assembly)*4

14

ECM

15

Air conditioning amplifier assembly

16

Front power seat switch LH*5

  • *1: for 4WD
  • *2: for Navigation Receiver Type
  • *3: for Radio and Display Receiver Type
  • *4: for 2WD
  • *5: w/ Seat Position Memory
w/o Smart Key System

No.

ECU/Sensor Name

1

Combination meter assembly

2

Skid control ECU (master cylinder solenoid)*1

3

Main body ECU (multiplex network body ECU)

4

Airbag sensor assembly

5

Steering angle sensor (spiral cable sub-assembly)

6

DLC3

7

Navigation receiver assembly*2 or radio and display receiver assembly*3

10

Yaw rate sensor assembly

11

Power steering ECU assembly

12

Four wheel drive control ECU*1

13

Skid control ECU (brake actuator assembly)*4

14

ECM

15

Air conditioning amplifier assembly

17

Stabilizer control ECU*5

18

Drive monitor switch*6

  • *1: for 4WD
  • *2: for Navigation Receiver Type
  • *3: for Radio and Display Receiver Type
  • *4: for 2WD
  • *5: w/ Kinetic Dynamic Suspension System
  • *6: w/ CRAWL Control

1. w/ Smart Key System:





2. w/o Smart Key System:




System Description
SYSTEM DESCRIPTION 1. BRIEF DESCRIPTION (a) The CAN (Controller Area Network) is a serial data communication system for real-time application. It is a vehicle multiplex communication system which ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT IMPORTANT POINTS CONCERNING TROUBLESHOOTING CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS syste ...

Other materials about Toyota 4Runner:

Reassembly
REASSEMBLY CAUTION / NOTICE / HINT CAUTION: Wear protective gloves. Sharp areas on the parts may injure your hands. HINT: A bolt without a torque specification is shown in the standard bolt chart (See page ). PROCEDURE 1. INSTALL REAR SEAT TRACK ADJU ...

Door Side Airbag Sensor RH Initialization Incomplete (B1693/81,B1698/82)
DESCRIPTION The circuit for the side collision sensor LH or RH (to determine deployment of the front seat side airbag LH or RH and curtain shield airbag LH or RH) is composed of the center airbag sensor, rear airbag sensor LH or RH and side airbag sensor ...

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