POWER WINDOW CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   VEHICLE BROUGHT TO WORKSHOP

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
2. Click here

   CUSTOMER PROBLEM ANALYSIS

   
   

   • 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 in the 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

   
   
   • NEXTClick here
3. Click here

   INSPECT 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

   
   
   • NEXTClick here
4. Click here

   CHECK LIN COMMUNICATION SYSTEM*

   
   

   1. Use the Intelligent tester to check if the LIN communication system is functioning.

      Result
      Result Proceed to LIN DTC is not output A LIN DTC is output B

   
   
   • AClick here
   • B

     GO TO LIN COMMUNICATION SYSTEMClick here

5. Click here

   CHECK FOR DTC*

   
   

   1. Check for DTCs and note any codes that are output.

      Click here

   2. Clear the DTCs.

   3. Recheck for DTCs.

      Result
      Result Proceed to DTC is not output A DTC is output B

   
   
   • AClick here
   • B

     GO TO DIAGNOSTIC TROUBLE CODE CHARTClick here

6. Click here

   PROBLEM SYMPTOMS TABLE

   
   

   1. Refer to Problem Symptoms Table.

      Click here

      Result
      Result Proceed to Fault is not listed in problem symptoms table A Fault is listed in problem symptoms table B

   
   
   • AClick here
   • BClick here

     GO TO STEP 8

7. Click here

   OVERALL ANALYSIS AND TROUBLESHOOTING*

   
   

   1. Operation Check.

      Click here

   2. Data List / Active Test.

      Click here

   3. Terminals of ECU.

      Click here

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
8. Click here

   REPAIR OR REPLACE

   Result
   Result Proceed to Door window regulator replaced or removed/installed A Door window regulator not replaced or removed/installed B

   
   
   • AClick here
   • BClick here

     GO TO STEP 10

9. Click here

   INITIALIZE POWER WINDOW MOTOR

   
   

   1. If the front door window regulator assembly (driver side) has been removed and reinstalled, perform "Initialize Power Window Control System" for the driver door glass.

      Click here

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
10. Click here

    CONFIRMATION TEST

    Result
    Proceed to NEXT

    
    
    • NEXT

      END