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 11V, recharge or replace the battery before proceeding.

3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
   1. Use the intelligent tester to check if the CAN communication system is functioning normally.

      Result: 

      RESULT CHART
      
      

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

   B:  GO TO CAN COMMUNICATION SYSTEM

   A: GO TO NEXT STEP 

4. PROBLEM SYMPTOMS TABLE 

   Result: 

   RESULT CHART
   
   

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

   B: Go to step  6

   A: GO TO NEXT STEP 

5. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. DATA LIST / ACTIVE TEST 
   2. TERMINALS OF ECU 
6. REPAIR OR REPLACE 
7. CONFIRMATION TEST