How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the seat belt warning system.
• *: Use the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP 
2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 11 to 14 V 

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

3. CHECK FUNCTION OF AIRBAG SYSTEM* 
   1. Use the intelligent tester to check if the airbag system is functioning normally.

      Result 

      RESULT REFERENCE
      
      

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

   B: GO TO  AIRBAG SYSTEM 

   A: Go TO NEXT STEP. 

4. CHECK FUNCTION OF OCCUPANT CLASSIFICATION SYSTEM* 
   1. Use the intelligent tester to check if the occupant classification system is functioning normally.

      Result 

      RESULT REFERENCE
      
      

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

   B: GO TO  OCCUPANT CLASSIFICATION SYSTEM 

   A: Go TO NEXT STEP. 

5. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM (CAN)* 
   1. Use the intelligent tester to check if the CAN Communication System (CAN) is functioning normally.

      Result 

      RESULT REFERENCE
      
      

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

   B: Go to  CAN COMMUNICATION SYSTEM 

   A: Go TO NEXT STEP. 

6. PROBLEM SYMPTOMS TABLE 

   Result 

   RESULT REFERENCE
   
   

   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. DATA LIST / ACTIVE TEST 
   2. TERMINALS OF ECU 
   3. ON-VEHICLE INSPECTION 
8. REPAIR OR REPLACE 
9. CONFIRMATION TEST 

   END