Airbag System Srs Warning Light Does Not Come On
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK CONNECTION OF CONNECTOR
CHECK COMBINATION METER
CHECK SRS WARNING LIGHT (OPERATION)
REPLACE CENTER AIRBAG SENSOR
AIRBAG SYSTEM - SRS Warning Light does not Come ON |
DESCRIPTION
The SRS warning light is located on the combination meter. When the ignition switch is turned from OFF to ON, the SRS warning light illuminates. If the SRS is normal, the SRS warning light turns off automatically after approximately 6 seconds. If there is a malfunction in the SRS, the SRS warning light remains illuminated even after approximately 6 seconds have passed. When terminals TC and CG of the DLC3 are connected, the DTCs are communicated through SRS warning light blinking patterns.
WIRING DIAGRAM
Refer to "SRS Warning Light Remains ON" (Toyota Fortuner RM000000YXP004X.html).
INSPECTION PROCEDURE
| 1.CHECK CONNECTION OF CONNECTOR |
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Check that the connectors are properly connected to the center airbag sensor and combination meter.
- OK:
- Connectors are connected.
| 2.CHECK COMBINATION METER |
Disconnect the C10 meter connector.
Turn the ignition switch ON.
Measure the voltage of the wire harness side connector.
- Standard voltage:
Tester Connection
| Specified Condition
|
C10-21 - Body ground
| 8 to 14 V
|
| | REPAIR OR REPLACE HARNESS AND CONNECTOR |
|
|
| 3.CHECK SRS WARNING LIGHT (OPERATION) |
Disconnect the A24 sensor connector with the C10 meter connector connected.
Turn the ignition switch ON.
Check that the warning light illuminates for 6 seconds after turning the ignition switch ON.
- OK:
- Warning light illuminates for 6 seconds after turning ignition switch ON.
| | REPLACE COMBINATION METER ASSEMBLY |
|
|
| 4.REPLACE CENTER AIRBAG SENSOR |
Replace the center airbag sensor.
Check that the SRS warning light illuminates normally.
- OK:
- SRS warning light illuminates normally.
| | REPLACE COMBINATION METER ASSEMBLY |
|
|
