AIRBAG SYSTEM SRS Warning Light does not Come ON

DESCRIPTION

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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. INSPECT AUXILIARY BATTERY


    1. Measure the voltage of the auxiliary battery.

      Standard Voltage
      11 to 14 V

    NG

    CHECK AND REPLACE AUXILIARY BATTERY OR CHARGING SYSTEM Click here

    OK

  2. CHECK CONNECTION OF CONNECTORS


    1. Turn the ignition switch off.

    2. Disconnect the cable from the negative (-) auxiliary battery terminal.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

    3. Check that the connectors are properly connected to the airbag sensor assembly and the combination meter assembly.

      OK
      The connectors are properly connected.

    NG

    CONNECT CONNECTORS PROPERLY

    OK

  3. CHECK HARNESS AND CONNECTOR (SOURCE VOLTAGE OF COMBINATION METER ASSEMBLY)


    1. A01V08HE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Combination Meter Assembly)

      Turn the ignition switch off.

    2. Disconnect the cable from the negative (-) auxiliary battery terminal.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

    3. Disconnect the connectors from the combination meter assembly and airbag sensor assembly.

    4. Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.

    5. Turn the ignition switch to ON (IG).

    6. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F1-39 (IG+) - F1-21 (ET) Ignition switch ON (IG) 11 to 14 V
      F1-40 (B) - F1-21 (ET) Ignition switch ON (IG) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK SRS WARNING LIGHT


    1. Turn the ignition switch off.

    2. Disconnect the cable from the negative (-) auxiliary battery terminal.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

    3. Connect the connector to the combination meter assembly.

    4. Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.

    5. Turn the ignition switch to ON (IG).

    6. Check the SRS warning light condition.

      OK
      The SRS warning light goes off after the primary check period and comes on again after approximately 10 seconds.

      Tech Tips

      The primary check period lasts for approximately 6 seconds after the ignition switch is turned to ON.


    OK

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here