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 MANUALSTOYOTA2011LANDCRUISER V8-5.7L (3UR-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSINFORMATION BUSTESTING AND INSPECTIONINITIAL INSPECTION AND DIAGNOSTIC OVERVIEWLIN COMMUNICATION SYSTEM
2011 Toyota Landcruiser V8-5.7L (3UR-FE)
LIN Communication System
2011 Toyota Landcruiser V8-5.7L (3UR-FE)SECTION LIN Communication System
NETWORKING: LIN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING
HINT
* Use these procedures to troubleshoot the LIN communication system.
* *: Use the Techstream.
1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. INSPECT BATTERY VOLTAGE
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
NEXT -- Continue to next step.
3. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
(a) Using the Techstream, inspect the CAN communication function to ensure there are no malfunctions in the communication system Reading and Clearing Diagnostic Trouble Codes.
Result
B -- Go to CAN COMMUNICATION SYSTEM CAN Communication System
A -- Continue to next step.
4. INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*
(a) Using the Techstream, inspect the LIN communication function to ensure there are no malfunctions in the communication system.
Result
B -- Go to DIAGNOSTIC TROUBLE CODE CHART LIN Communication System
A -- Continue to next step.
5. PROBLEM SYMPTOMS TABLE
(a) Refer to the Problem Symptoms Table Symptom Related Diagnostic Procedures.
Result
B -- Go to step 7
A -- Continue to next step.
6. OVERALL ANALYSIS AND TROUBLESHOOTING*
(a) Data List / Active Test Scan Tool Testing and Procedures
(b) Terminals of ECU LIN Communication System
NEXT -- Continue to next step.
7. ADJUST, REPAIR OR REPLACE
NEXT -- END
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.