DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
PERFORM ACTIVE TEST BY INTELLIGENT TESTER
CHECK DTCS
SEAT BELT WARNING SYSTEM - Driver Side Seat Belt Warning Light does not Operate
DESCRIPTION
When the engine switch on (IG), the center airbag sensor assembly transmits front seat inner belt state signals to the combination meter assembly though the CAN and BEAN. If the driver seat belt is not fastened, the combination meter assembly blinks the driver seat belt warning light. If the seat belt is fastened, the warning light goes off.
- The seat belt warning system uses the CAN and BEAN. Before troubleshooting the seat belt warning system, perform "COMMUNICATION FUNCTION CHECK" by following "HOW TO PROCEED WITH TROUBLESHOOTING" to confirm that the communication systems are normal.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.PERFORM ACTIVE TEST BY INTELLIGENT TESTER |
Operate the intelligent tester according to the steps on the display and select "ACTIVE TEST".
- Combination Meter:
| Item | Test Details | Diagnostic Note |
| Indicat. lamp D-seat Belt | D-SEAT BELT indicator light (OFF/ON) | Confirm that the vehicle is stopped with the engine idling |
- OK:
- Switch condition (ON/OFF) can be switched by "ACTIVE TEST".
| | GO TO COMBINATION METER SYSTEM |
|
|
- Result:
| B1655 is output | B |
| B1655 is not output | A |
| A | |
| |
| REPLACE CENTER AIRBAG SENSOR ASSEMBLY |
|
LEXUS IS250, IS220d / GSE20 ALE20