Toyota 4Runner: System Diagram
SYSTEM DIAGRAM
Input and Output Signal of Each ECU
|
Transmitting ECU (Transmitter) |
Receiving ECU (Receiver) |
Signal |
Communication Method |
|---|---|---|---|
|
Power management control ECU |
Steering lock actuator assembly (steering lock ECU) |
Power supply status (to steering lock motor) |
LIN |
|
Steering lock actuator assembly (steering lock ECU) |
|
Sleep available status |
LIN |
|
Steering lock actuator assembly (steering lock ECU) |
|
Lock/unlock sensor status |
LIN |
|
Steering lock actuator assembly (steering lock ECU) |
|
Steering lock status |
LIN |
|
Steering lock actuator assembly (steering lock ECU) |
|
Motor control status |
LIN |
|
Steering lock actuator assembly (steering lock ECU) |
|
Diagnostic response status |
LIN |
|
Steering lock actuator assembly (steering lock ECU) |
|
Lock/unlock sensor malfunction |
LIN |
|
Steering lock actuator assembly (steering lock ECU) |
|
Power supply malfunction (to steering lock motor) |
LIN |
|
Steering lock actuator assembly (steering lock ECU) |
|
Motor driver malfunction |
LIN |
|
Steering lock actuator assembly (steering lock ECU) |
|
Lock bar (stuck) status |
LIN |
|
Steering lock actuator assembly (steering lock ECU) |
|
Push start status |
LIN |
|
Steering lock actuator assembly (steering lock ECU) |
|
Lock/unlock relay drive status |
LIN |
|
Steering lock actuator assembly (steering lock ECU) |
|
Engine start control status |
LIN |
|
Certification ECU |
Steering lock actuator assembly (steering lock ECU) |
Lock/unlock request |
LIN |
|
Main body ECU |
|
Driver side door courtesy switch signal |
CAN |
System Description
SYSTEM DESCRIPTION
1. DESCRIPTION
(a) The steering lock system locks or unlocks the steering by activating the
steering lock bar with a motor. The steering lock ECU activates the motor based
on ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedures to troubleshoot the steering lock system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT ...
Other materials about Toyota 4Runner:
Tire Pressure Warning Ecu
Components
COMPONENTS
ILLUSTRATION
Installation
INSTALLATION
PROCEDURE
1. INSTALL TIRE PRESSURE WARNING ECU
(a) Install the tire pressure warning ECU with the bolt.
Torque:
5.5 N·m {56 kgf·cm, 49 in·lbf}
(b) Connect the connector.
2. INSTA ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT TRANSMISSION CONTROL SWITCH
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
...
0.0059