AIRBAG SYSTEM(w/o Curtain Shield Airbag), Diagnostic DTC:B161B/1A

DTC Code DTC Name
B161B/1A Front Center Airbag Sensor

DESCRIPTION

The front airbag sensor consists of the diagnostic circuit and frontal deceleration sensor, etc.

If the airbag sensor assembly receives signals from the frontal deceleration sensor, it determines whether the SRS should be activated.

DTC B161B/1A is stored when a malfunction is detected in the front airbag sensor circuit.

DTC No. DTC Detection Condition Trouble Area
B161B/1A

Either condition is met:


  • A front airbag sensor malfunction.

  • A airbag sensor assembly malfunction.

  • Front airbag sensor

  • Airbag sensor assembly

WIRING DIAGRAM

A01VJGIE35
*a Front Airbag Sensor
*b Airbag Sensor Assembly

PROCEDURE


  1. CHECK FRONT AIRBAG SENSOR


    1. Turn the ignition switch off.

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

      CAUTION:

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

    3. Temporarily replace the front airbag sensor with a new one.

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

    5. Turn the ignition switch to ON, and wait for at least 60 seconds.

    6. Clear the DTCs stored in memory Click here.

    7. Turn the ignition switch off.

    8. Turn the ignition switch to ON, and wait for at least 60 seconds.

    9. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC B161B/1A is not output A
      DTC B161B/1A is output B

      Tech Tips

      Codes other than DTC B161B/1A may be output at this time, but they are not related to this check.

    10. Turn the ignition switch off.

    11. Disconnect the cable from the negative (-) battery terminal.

      CAUTION:

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

    12. Reinstall the former front airbag sensor, and connect the connector.


    A

    END (FRONT AIRBAG SENSOR WAS DEFECTIVE)

    B

    REPLACE AIRBAG SENSOR ASSEMBLY Click here