Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS2011HS 250H L4-2.4L (2AZ-FXE) HYBRIDREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSINFORMATION BUSDESCRIPTION AND OPERATIONLIN COMMUNICATION SYSTEM
2011 Lexus HS 250h L4-2.4L (2AZ-FXE) Hybrid
LIN Communication System
2011 Lexus HS 250h L4-2.4L (2AZ-FXE) HybridSECTION LIN Communication System
NETWORKING: LIN COMMUNICATION SYSTEM: SYSTEM DIAGRAM
1. DOOR BUS LINES
2. CERTIFICATION BUS LINES
3. AIR CONDITIONING BUS LINES
4. LIGHTING BUS LINES (w/ Automatic High Beam System)
SYSTEM DESCRIPTION
1. 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 because of an open in the communication lines or other reason, the master control ECU of the relevant system will output a DTC. Refer to the table below about the communication bus lines and connected components.
HINT
* Each component has a fail-safe function which activates to maintain the minimum performance of the system and protect the system.
* In the following table "o" indicates that the function applies, and "-" indicates that it does not.
Door Bus Lines
Certification Bus Lines
Air Conditioning Bus Lines
*1: w/o Navigation System
Lighting Bus Lines (w/ Automatic High Beam System)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.