Seat Belt Warning System

SEAT BELT: SEAT BELT WARNING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
- Use the following procedures to troubleshoot the seat belt warning system.
- *: Use the intelligent tester or Techstream.

1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue 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 to the next step.
NEXT -- Continue to next step.
3. CHECK FOR DTC*
(a) Check for DTCs and make a note of any codes that are output.
(b) Clear the DTCs.
(c) Based on the DTCs output above, try to cause the output of the same CAN communication system DTC or airbag system DTC by simulating the symptoms indicated by the DTC. Then recheck for DTCs.

Result:





B -- Go to CAN COMMUNICATION SYSTEM
C -- Go to AIRBAG SYSTEM
D -- Go to OCCUPANT CLASSIFICATION SYSTEM
A -- Continue to next step.
4. PROBLEM SYMPTOMS TABLE
(a) Refer to the problem symptoms table Problem Symptoms Table.
NEXT -- Continue to next step.
5. OVERALL ANALYSIS AND TROUBLESHOOTING*
(a) Operation check Component Tests and General Diagnostics

(b) DATA LIST / ACTIVE TEST Seat Belt Warning System

(c) Terminals of ECU Seat Belt Warning System

NEXT -- Continue to next step.
6. REPAIR OR REPLACE
NEXT -- Continue to next step.
7. CONFIRMATION TEST
NEXT -- END