How To Proceed With Troubleshooting

HINT: 

• Use the following procedure to troubleshoot the power window control system.
• *: Using the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. 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

   NEXT: Go to next step 

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.

      NEXT: Go to next step 

4. INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)* 
   1. Use the Techstream to check if the multiplex communication system (BEAN) is functioning normally . Refer to DTC CHECK / CLEAR .

      Result

      Result	Proceed to
      No DTCs output	A
      DTCs output	B

      B → GO TO MULTIPLEX COMMUNICATION SYSTEM (BEAN) . Refer to  DIAGNOSTIC TROUBLE CODE CHART 

      A: Go to next step 

5. CHECK FOR DTC* 
   1. Check for DTCs and note any codes that are output . Refer to DTC CHECK / CLEAR .
   2. Clear the DTCs.
   3. Recheck for DTCs.

      Result

      Result	Proceed to
      No DTCs output	A
      DTC B2311 is output	B
      DTC B2312 is output	C
      DTC B2313 is output	D

      B → GO TO DTC B2311 . Refer to  DTC B2311: Power Window Motor Malfunction 

      C → GO TO DTC B2312 . Refer to  DTC B2312: Power Window Switch Malfunction 

      D → GO TO DTC B2313 . Refer to  DTC B2313: Glass Position Initialization Incomplete 

      A: Go to next step 

6. PROBLEM SYMPTOMS TABLE 
   1. Refer to Problem Symptoms Table . Refer to PROBLEM SYMPTOMS TABLE .

      Result

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

      B → Go to step 8 

      A: Go to next step 

7. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. Operation Check . Refer to OPERATION CHECK 
   2. Data List / Active Test . Refer to DATA LIST / ACTIVE TEST 
   3. Terminals of ECU . Refer to TERMINALS OF ECU 

      NEXT: Go to next step 

8. REPAIR OR REPLACE 

   NEXT: Go to next step 

9. RESET POWER WINDOW MOTOR 
   1. If any of the multiplex network master switch assembly or power window regulator switch assembly LEDs is blinking, reset the power window regulator motor assembly . Refer to INITIALIZATION .

      NEXT: Go to next step 

10. CONFIRMATION TEST 

    NEXT → END