AIRBAG SYSTEM, Diagnostic DTC:B1615/14

DTC Code DTC Name
B1615/14 Front Airbag Sensor LH Malfunction

DESCRIPTION

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

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

DTC B1615/14 is stored when a malfunction is detected in the front airbag sensor LH circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area
B1615/14 Front Airbag Sensor LH Malfunction

Either condition is met:


  • A front airbag sensor LH malfunction.

  • An airbag ECU assembly malfunction.


  • Front airbag sensor LH

  • Airbag ECU assembly

WIRING DIAGRAM

B005828E24
*a Front Airbag Sensor LH
*b Airbag ECU Assembly

CAUTION / NOTICE / HINT

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

  • After replacing the airbag ECU assembly, refer to initialization.

    Click here

PROCEDURE


  1. CHECK FRONT AIRBAG SENSOR LH


    1. B005ATMC30
      *1 Front Airbag Sensor RH
      *2 Airbag ECU Assembly

      Turn the engine switch off.

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

    3. Interchange the front airbag sensor LH with RH and connect the connectors to them.

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

    5. Turn the engine switch on (IG), and wait for at least 60 seconds.

    6. Clear the DTCs stored in memory.

      Click here


      Body Electrical > SRS Airbag > Clear DTCs
    7. Turn the engine switch off.

    8. Turn the engine switch on (IG), and wait for at least 60 seconds.

    9. Check for DTCs.

      Click here


      Body Electrical > SRS Airbag > Trouble Codes
      Result
      Proceed to
      DTC B1615/14 is output
      DTC B1610/13 is output
      DTC B1610/13 and B1615/14 are not output

      Tech Tips

      Codes other than DTC B1610/13 and B1615/14 may be output at this time, but they are not related to this check.

    10. Turn the engine switch off.

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

    12. Return the front airbag sensor RH and LH to their original positions and connect the connectors to them.


    DTC B1615/14 is output
    DTC B1610/13 is output
    DTC B1610/13 and B1615/14 are not output