Tundra 4WD V8-4.6L (1UR-FE) (2010)
Information Bus: Initial Inspection and Diagnostic Overview
LIN Communication System
MULTIPLEX COMMUNICATION: 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. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
(a) Using the Techstream, inspect the CAN communication function to ensure there are no malfunctions in the CAN communication system
See: CAN Communication System/How to Proceed With Troubleshooting.
B -- GO TO CAN COMMUNICATION SYSTEM See: CAN Communication System/How to Proceed With Troubleshooting
A -- Continue to next step.
4. PROBLEM SYMPTOMS TABLE
(a) Refer to the problem symptoms table See: Symptom Related Diagnostic Procedures/LIN Communication System/Problem Symptoms
Table.
B -- Go to step 6
A -- Continue to next step.
5. OVERALL ANALYSIS AND TROUBLESHOOTING*
(a) Terminals of ECU See: Pinout Values and Diagnostic Parameters/LIN Communication System
(b) Data List / Active Test See: Scan Tool Testing and Procedures
NEXT -- Continue to next step.
6. REPAIR OR REPLACE
NEXT -- END
How to Proceed With Troubleshooting