How To Proceed With Troubleshooting

HINT:

• Use this procedure to troubleshoot the power window control system.
• The intelligent tester should be used in steps  3 and  5.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK 
3. CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN) 

   HINT:

   See HOW TO PROCEED WITH TROUBLESHOOTING

   1. Use the intelligent tester to confirm normal function of the multiplex communication system.
      1. (ECU unconnected, communication line malfunctioning) Without code outputs, proceed to A.
      2. (ECU unconnected, communication line malfunctioning) With code outputs, proceed to B.

   B: Go to  MULTIPLEX COMMUNICATION SYSTEM 

   A: Go to next step 

4. PROBLEM SYMPTOMS TABLE 

   HINT:

   See PROBLEM SYMPTOMS TABLE 

5. OVERALL ANALYSIS AND TROUBLESHOOTING 
   1. Data list/Active test

      HINT:

      See DATA LIST/ACTIVE TEST 

   2. Circuit inspection
   3. Terminal of ECU

      HINT:

      See TERMINALS OF ECU 

6. ADJUST, REPAIR OR REPLACE 
7. RESET POWER WINDOW MOTOR 

   HINT:

   See INITIALIZATION 

   END