How To Proceed With Troubleshooting

SEAT BELT: SEAT BELT WARNING SYSTEM (w/o Occupant Classification System): HOW TO PROCEED WITH TROUBLESHOOTING

HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
- Use these procedures to troubleshoot the seat belt warning system.
- *: Use 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.
NEXT -- Continue to next step.
3. CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)*
(a) Use Techstream to check if the Multiplex Communication System (MPX) is functioning normally.

Result:





B -- GO TO MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.
4. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM (CAN)*
(a) Use Techstream to check if the CAN Communication System (CAN) is functioning normally.

Result:





B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.
5. PROBLEM SYMPTOMS TABLE
HINT:
Problem Symptoms Table

NEXT -- Continue to next step.
6. OVERALL ANALYSIS AND TROUBLESHOOTING*
(a) DATA LIST / ACTIVE TEST Seat Belt Warning System (w/o Occupant Classification System)
(b) Terminals of ECU Seat Belt Warning System (w/o Occupant Classification System)
(c) On-vehicle Inspection Seat Belt Warning System (w/o Occupant Classification System)
NEXT -- Continue to next step.
7. REPAIR OR REPLACE
NEXT -- Continue to next step.
8. CONFIRMATION TEST
NEXT -- END