Lexus ES: System Description
SYSTEM DESCRIPTION
LIN COMMUNICATION SYSTEM DESCRIPTION
The LIN communication system is used for communication between the components in the tables below. If communication cannot be performed through LIN communication such as when there is an open or short in a communication line, the master control ECU of the relevant system will store a DTC. Refer to the table below about the communication bus lines and connected components.
HINT:
- Each component has a fail-safe function which operates in the event of a malfunction to protect the system and allow communication between other components to continue.
- In the following table, "○" indicates that the function applies, and "-" indicates that it does not.
| Component | Master Control | LIN Communication DTC Output Function |
|---|---|---|
| Main Body ECU (Multiplex Network Body ECU) | ○ | ○ |
| Power Window Regulator Motor Assembly (Driver Door) | - | - |
| Power Window Regulator Motor Assembly (Front Passenger Door) | - | - |
| Power Window Regulator Motor Assembly (Rear LH Door) | - | - |
| Power Window Regulator Motor Assembly (Rear RH Door) | - | - |
| Multiplex Network Master Switch Assembly | - | - |
| Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly)*1 | - | - |
| Sliding Roof ECU (Sliding Roof Drive Gear Assembly)*2 | - | - |
| Kick Door Control Sensor*3 | - | - |
- *1: w/ Sliding Roof System
- *2: w/ Panoramic Moon Roof System
- *3: w/ Power Trunk Lid System
| Component | Master Control | LIN Communication DTC Output Function |
|---|---|---|
| Certification ECU (Smart Key ECU Assembly) | ○ | ○ |
| Steering Lock ECU (Steering Lock Actuator or Upper Bracket Assembly) | - | - |
| ID Code Box (Immobiliser Code ECU) | - | - |
READ NEXT:
System Diagram
SYSTEM DIAGRAM DOOR BUS LINES CERTIFICATION BUS LINES
Parts Location
PARTS LOCATION ILLUSTRATION *A for Manual Tilt and Manual Telescopic Steering Column *B for Power Tilt and Power Telescopic Steering Column *C w/ Power Trunk Lid System - - *1
Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cab
SEE MORE:
Display does not Dim when Light Control Switch is Turned ON
DESCRIPTION When the navigation system is activated with the light control switch in the tail or head position, before AVC-LAN communication is established, the multi-display assembly dims the display according to the illumination signal received via a direct line. After AVC-LAN communication is est
Camshaft Position Sensor "A" Circuit Bank 1 or Single Sensor (P034000,P034031)
DESCRIPTION If the cam position signal pulse sent from the ECM via a direct line is abnormal, the motor generator control ECU (MG ECU) (built into the inverter with converter assembly) stores DTC P034000 or P034031. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning
