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, whether the problem occurred recently or has been occurring for a long time
     Where	Whether the problem occurs at a specific location
     Under what conditions?	Whether the doors were locked or unlocked, whether the engine switch was on (IG), whether the engine has started
     How did it happen?	Problem symptoms

   Result

   Proceed to
   NEXT

   NEXT

3. PRE-CHECK

   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.

   2. Check the fuses and relays.

   3. Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

   Result

   Proceed to
   NEXT

   NEXT

4. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

   1. Using the GTS, check for CAN communication system DTCs.

      Click hereClick hereClick here

   Result

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

   B

   GO TO CAN COMMUNICATION SYSTEM

   Click hereClick here

   A

5. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

   1. Using the GTS, check for LIN communication system DTCs.

      Click here

   Result

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

   B

   GO TO DIAGNOSTIC TROUBLE CODE CHART

   Click here

   A

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

   1. Terminals of ECU

      Click here

   2. Data List / Active Test

      Click here

   Result

   Proceed to
   NEXT

   NEXT

7. REPAIR OR REPLACE

   Result

   Proceed to
   NEXT

   NEXT

8. CONFIRMATION TEST

   Result

   Proceed to
   NEXT

   NEXT

   END