System Description

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.

LIN COMMUNICATION SYSTEM DESCRIPTION

The multiplex communication system (LIN) is used to control communication between the ECUs of the body system If communication cannot be performed through LIN because of an open in the communication lines or other reason, the master control ECU of the relevant system will output a DTC. For the communication system and the connected ECUs, refer to the table below.

HINT:

Each ECU has a fail safe function which activates to protect the system while maintaining minimal system performance.

Certification System LIN Communication System

ECU FUNCTION CHART

ECU	Master Control (LIN Communication DTC Output Function)
Certification ECU (Smart Key ECU Assembly)	◦ (with output function)
Power Source Control ECU	◦ (with output function)
Steering Lock ECU (Steering Lock Actuator Assembly)	x (without output function)
ID Code Box (Immobilizer Code ECU)	x (without output function)