AIRBAG SYSTEM SRS Warning Light does not Come ON

DESCRIPTION

Refer to "SRS Warning Light Remains ON" Click here.

WIRING DIAGRAM

Refer to "SRS Warning Light Remains ON" Click here.

INSPECTION PROCEDURE

Note


  • After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work Click here.

  • When disconnecting the cable from the negative (-) battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected Click here.

PROCEDURE


  1. CHECK BATTERY


    1. Measure the voltage of the battery.

      Standard voltage
      11 to 14 V

    NG

    REPLACE OR RECHARGE BATTERY

    OK

  2. CHECK CONNECTOR


    1. Turn the engine switch off.

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

    3. Check that the connectors are properly connected to the combination meter.

      OK
      The connectors are properly connected.

    NG

    CONNECT CONNECTOR PROPERLY

    OK

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

    A01ENLLE09

    1. Turn the engine switch off.

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

    3. Disconnect the E77 connector from the combination meter.

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

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      E77-30 (IG+) - E77-26 (ET) Engine switch on (IG) 11 to 14 V
      E77-21 (B) - E77-26 (ET) Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK SRS WARNING LIGHT (SHORT TO GROUND)


    1. Turn the engine switch off.

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

    3. Connect the connector to the combination meter.

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

    5. Turn the engine switch on (IG).

    6. Check the SRS warning light condition.

      Note

      Make sure that nobody is in the vehicle.

      OK
      After the primary check period, the SRS warning light goes off for approximately 10 seconds and then remains on.

      Tech Tips

      The primary check period is approximately 6 seconds after the engine switch is turned on (IG).


    NG

    GO TO METER / GAUGE SYSTEM Click here

    OK

    REPLACE CENTER AIRBAG SENSOR ASSEMBLY Click here