How To Proceed With Troubleshooting

HINT: 

• Use these procedures to troubleshoot the power window control system.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK 

   NEXT: Go to next step 

3. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)* 
   1. Use the Techstream to check if the Multiplex Communication System (MPX) is functioning normally.
      RESULT
      
      

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

      B → Go to MULTIPLEX COMMUNICATION SYSTEM 

      A: Go to next step 

4. CHECK FOR DTC* 
   1. Check for DTC and note any codes that are output.
   2. Delete the DTC.
   3. Recheck for DTC. Try to prompt the DTC by simulating the original activity that the DTC suggests.
      RESULT
      
      

      Result	Proceed to
      DTC does not reoccur	A
      DTC reoccurs	B

      B → Go to DIAGNOSTIC TROUBLE CODE CHART 

      A: Go to next step 

5. 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 7 

   A: Go to next step 

6. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. Data List/Active Test. Refer to DATA LIST / ACTIVE TEST .
   2. On-vehicle inspection. Refer to ON-VEHICLE INSPECTION .
   3. Terminals of ECU. Refer to TERMINALS OF ECU .
   4. Inspection.
      1. Inspect master switch. Refer to INSPECTION .
      2. Inspect power window switch. Refer to INSPECTION .
      3. Inspect power window motor. Refer to INSPECTION .

      NEXT: Go to next step 

7. ADJUST, REPAIR OR REPLACE 

   NEXT: Go to next step 

8. CONFIRMATION TEST 

   NEXT → END