How To Proceed With Troubleshooting

HINT: 

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

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. INSPECT AUXILIARY BATTERY VOLTAGE 

   Standard voltage

   11 to 14 V

   If the voltage is below 11 V, recharge or replace the battery before proceeding.

   NEXT: Go to next step 

3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
   1. Use the Techstream to check if the CAN communication system is functioning normally. Refer to PRECAUTION .
      RESULT
      
      

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

      B → Go to CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 

      A: Go to next step 

4. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* 
   1. Use the Techstream to check if the LIN communication system is functioning normally. Refer to DTC CHECK / CLEAR .
      RESULT
      
      

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

      B → Go to LIN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 

      A: Go to next step 

5. CHECK FOR DTC* 
   1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
   2. Recheck for DTCs.
      RESULT
      
      

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

      B → Go to DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART  

      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. Terminals of ECU. Refer to TERMINALS OF ECU .
   3. Data List / Active Test. Refer to DATA LIST / ACTIVE TEST .

      NEXT: Go to next step 

8. REPAIR OR REPLACE 

   NEXT: Go to next step 

9. CONFIRMATION TEST 

   NEXT → END