How To Proceed With Troubleshooting

HINT: 

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

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. INSPECT 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 MULTIPLEX COMMUNICATION SYSTEM (BEAN)* 
   1. Use Techstream to check if the Multiplex Communication System (MPX) is functioning normally.
      RESULT:
      
      

      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. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM (CAN)* 
   1. Use Techstream to check if the CAN Communication System (CAN) is functioning normally.
      RESULT:
      
      

      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 

5. PROBLEM SYMPTOMS TABLE 

   HINT: 

   Refer to PROBLEM SYMPTOMS TABLE 

   NEXT: Go to next step 

6. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. DATA LIST / ACTIVE TEST. Refer to DATA LIST / ACTIVE TEST 
   2. Terminals of ECU. Refer to TERMINALS OF ECU 
   3. On-vehicle Inspection. Refer to ON-VEHICLE INSPECTION 

      NEXT: Go to next step 

7. REPAIR OR REPLACE 

   NEXT: Go to next step 

8. CONFIRMATION TEST 

   NEXT → END