System Diagram

Fig 1: Identifying Steering Lock System Diagram

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Input and output signals of each ECU:

ECU SIGNALS TABLE

Transmitting ECU (transmitter)	Receiving ECU	Signals	Communication Method
Main Body ECU	Steering Lock ECU	Power supply status (to steering lock motor)	LIN
Steering Lock ECU	Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobilizer code ECU)	Sleep available status	LIN
Steering Lock ECU	Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobilizer code ECU)	Lock/Unlock sensor status	LIN
Steering Lock ECU	Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobilizer code ECU)	Steering lock status	LIN
Steering Lock ECU	Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobilizer code ECU)	Motor control status	LIN
Steering Lock ECU	Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobilizer code ECU)	Diagnostic response status	LIN
Steering Lock ECU	Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobilizer code ECU)	Lock/Unlock sensor malfunction	LIN
Steering Lock ECU	Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobilizer code ECU)	Power supply malfunction (to steering lock motor)	LIN
Steering Lock ECU	Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobilizer code ECU)	Motor driver malfunction	LIN
Steering Lock ECU	Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobilizer code ECU)	Lock bar (stuck) status	LIN
Steering Lock ECU	Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobilizer code ECU)	Push start status	LIN
Steering Lock ECU	Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobilizer code ECU)	Lock/Unlock relay drive status	LIN
Steering Lock ECU	Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobilizer code ECU)	Engine start control status	LIN