How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the power door lock control system.
• The intelligent tester should be used in steps  3,  4 and  5.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. CUSTOMER PROBLEM ANALYSIS 
   1. Interview the customer to confirm the trouble (See HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS ).

   NEXT: Go to next step 

3. INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN) 
   1. Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally.

      Result 

      RESULT TABLE
      
      

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

      Result 

      RESULT TABLE
      
      

      Result	Proceed to
      DTC does not reoccur	A
      DTC reoccurs	B

   B: Go to step   6 

   A: Go to next step 

5. PROBLEM SYMPTOMS TABLE 

   Result 

   RESULT TABLE
   
   

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

   B: After repair, go to step   7 

   A: Go to next step 

6. OVERALL ANALYSIS AND TROUBLESHOOTING 
   1. See TERMINALS OF ECU 
   2. See DATA LIST/ACTIVE TEST 

   NEXT: Go to next step 

7. REPAIR OR REPLACE 

   NEXT: Go to next step 

8. CONFIRMATION TEST 

   NEXT: END