AIRBAG SYSTEM SRS Warning Light does not Come ON

DESCRIPTION

The SRS warning light is located on the combination meter. When the SRS is normal, the SRS warning light illuminates for approximately 6 seconds after the ignition switch is turned from OFF to ON, and then turns OFF automatically. If there is a malfunction in the SRS, the SRS warning light illuminates to inform the driver. 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" Click here.

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK CONNECTION OF CONNECTORS


    1. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

    2. Check that the connectors are properly connected to the center airbag sensor and combination meter.

      OK
      Connectors are connected.

    NG

    CONNECT CONNECTORS

    OK

  2. CHECK COMBINATION METER ASSEMBLY

    A01J30QE28

    1. Disconnect the C27 meter connector.

    2. Turn the ignition switch ON.

    3. Measure the voltage of the wire harness side connector.

      Standard voltage
      Tester Connection Specified Condition
      C27-21 - Body ground 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

  3. CHECK SRS WARNING LIGHT (OPERATION)


    1. Disconnect the A14 ECU connector with the C27 meter connector connected.

    2. Turn the ignition switch ON.

    3. 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.

    NG

    REPLACE COMBINATION METER ASSEMBLY

    OK

  4. REPLACE CENTER AIRBAG SENSOR ASSEMBLY


    1. Replace the center airbag sensor.

    2. Check that the SRS warning light illuminates normally.

      OK
      SRS warning light illuminates normally.

    NG

    REPLACE COMBINATION METER ASSEMBLY

    OK

    END