System Diagram
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
Input and Output Signals of Each ECU
INPUT AND OUTPUT SIGNALS CHART
| Transmitting ECU (transmitter) | Receiving ECU | Signal | Communication Method |
|---|---|---|---|
| Power Source Control ECU | Steering Lock ECU | Power supply status (to steering lock motor) | LIN |
| Steering Lock ECU | Certification ECU | Sleep available status | LIN |
| Steering Lock ECU |
|
Lock/Unlock sensor status | LIN |
| Steering Lock ECU | Certification ECU | Steering lock status | LIN |
| Steering Lock ECU | Certification ECU | Motor control status | LIN |
| Steering Lock ECU | Certification ECU | Diagnostic response status | LIN |
| Steering Lock ECU | Certification ECU | Lock/Unlock sensor malfunction | LIN |
| Steering Lock ECU | Certification ECU | Power supply malfunction (to steering lock motor) | LIN |
| Steering Lock ECU | Certification ECU | Motor driver malfunction | LIN |
| Steering Lock ECU |
|
Lock bar (stuck) status | LIN |
| Steering Lock ECU |
|
Push start status | LIN |
| Steering Lock ECU | Certification ECU | Lock/Unlock relay drive status | LIN |
| Steering Lock ECU |
|
Engine start control status | LIN |