AIRBAG SYSTEM SRS Warning Light Remains ON

DESCRIPTION

The SRS warning light is located on the combination meter.

When the SRS is normal, the SRS warning light lights up for approx. 6 seconds after the ignition switch is turned from the LOCK position to ON position, and then turns off automatically.

If there is a malfunction in the SRS, the SRS warning light lights up to inform the driver of the abnormality.

When terminals Tc and CG of the DLC3 are connected, the DTC is displayed by blinking the SRS warning light.

WIRING DIAGRAM

A01KGY4E01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK CONNECTOR


    1. Turn the ignition switch to LOCK.

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

    3. Disconnect the airbag ECU assembly connector.

    4. Connect negative (-) terminal cable to the battery.

    5. Check operation of SRS warning light.

      OK
      The connectors are connected.

    NG

    CONNECT CONNECTORS

    OK

  2. CHECK COMBINATION METER ASSEMBLY


    1. A01KGAIE01

      Disconnect the connector from the combination meter.

    2. Connect negative (-) terminal cable to the battery, and turn the ignition switch to ON.

    3. A01KG5IE01

      Measure the resistance between SW and body ground.

      OK
      Voltage: 8 V or Higher

    NG

    REPLACE COMBINATION METER ASSEMBLY

    OK

  3. CHECK COWL WIRE (AIRBAG ECU ASSEMBLY-COMBINATION METER ASSEMBLY)


    1. A01KFTRE01

      Disconnect negative (-) terminal cable from the battery,

    2. Disconnect the connector from the airbag ECU assembly.

    3. Measure the resistance between LA and body ground.

      OK
      Resistance: 1MΩ or Higher

    NG

    REPAIR OR REPLACE COWL WIRE

    OK

    REPLACE AIR BAG ECU ASSEMBLY

  4. CHECK COWL WIRE (AIRBAG ECU ASSEMBLY-COMBINATION METER ASSEMBLY)


    1. A01KF4OE01
      Text in Illustration
      *1 Airbag ECU Assembly
      *2 Combination Meter

      For the connector (on the airbag ECU assembly side) between the airbag ECU assembly and the combination meter, measure the resistance between SW and LA.

      OK
      Resistance: Below 1 Ω

    NG

    REPAIR OR REPLACE COWL WIRE

    OK

    REPLACE AIR BAG ECU ASSEMBLY