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:
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is output during the DTC check, inspect the trouble areas listed
for that code. For details of the code, refer to the "See page" below.
Smart Key System (for Start Function)
DTC C ...
For owners
Reporting safety defects for U.S. owners, and seat belt and SRS airbag
instructions for Canadian owners.
Reporting safety defects for U.S. owners
If you believe that your vehicle has a defect which could cause a crash or
could cause injury or death, you ...
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