LIN COMMUNICATION SYSTEM

CAUTION / NOTICE / HINT

PROCEDURE

1. VEHICLE BROUGHT TO WORKSHOP

   Result

   Proceed to
   NEXT

   NEXT

2. CUSTOMER PROBLEM ANALYSIS

   Tip:

   • In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.

   • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

   • The following 5 items are important points for problem analysis:

   What	Vehicle model, system name
   When	Date, time, occurrence frequency
   Where	Road conditions
   Under what conditions?	Driving conditions, weather conditions
   How did it happen?	Problem symptoms

   Result

   Proceed to
   NEXT

   NEXT

3. INSPECT BATTERY VOLTAGE

   1. Measure the battery voltage.

      Standard Voltage

      11 to 14 V

      If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

   Result

   Proceed to
   NEXT

   NEXT

4. INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

   1. Using the GTS, inspect the LIN communication function to ensure there are no malfunctions in the communication system.

      Click here

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

   B

   GO TO DIAGNOSTIC TROUBLE CODE CHART

   Click hereClick here

   A

5. OVERALL ANALYSIS AND TROUBLESHOOTING*

   1. Terminals of ECU

      Click here

   2. Data List / Active Test

      Click here

   Result

   Proceed to
   NEXT

   NEXT

6. REPAIR OR REPLACE

   Result

   Proceed to
   NEXT

   NEXT

7. CONFIRMATION TEST

   Result

   Proceed to
   NEXT

   NEXT

   END