How to proceed with troubleshooting

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

1. Vehicle brought to workshop

2. Inspect battery voltage

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

1. 1
   Check function of airbag system*
2. 2
   Use the intelligent tester to check if the airbag system is functioning normally.

Result

1. 1
   Check function of occupant classification system*
2. 2
   Use the intelligent tester to check if the occupant classification system is functioning normally.

Result

1. 1
   Check communication function of can communication system (can)*
2. 2
   Use the intelligent tester to check if the can communication system (can) is functioning normally.

Result

6. Problem symptoms table

Result

1. 1
   Overall analysis and troubleshooting*
2. 2
   Data list / active test (see page sb-10)
3. 3
   Terminals of ecu (see page sb-7)
4. 4
   On-vehicle inspection (see page sb-10)

   

8. Repair or replace

9. Confirmation test