AIRBAG SYSTEM, Diagnostic DTC:B1635/24

DTC Code DTC Name
B1635/24 Rear Airbag Sensor LH Circuit Malfunction

DESCRIPTION

The side collision sensor LH circuit (to determine deployment of the front seat airbag assembly LH, rear seat airbag assembly LH, curtain shield airbag assembly LH and front seat outer belt assembly LH) is composed of the airbag sensor assembly, side airbag sensor assembly LH, side No. 2 airbag sensor assembly LH and door side airbag sensor LH.

The side No. 2 airbag sensor assembly LH detects impacts to the vehicle and sends signals to the airbag sensor assembly to determine if the airbag should be deployed.

DTC B1635/24 is stored when a malfunction is detected in the side No. 2 airbag sensor assembly LH.

DTC No. DTC Detection Condition Trouble Area
B1635/24
  • Side No. 2 airbag sensor assembly LH malfunction

  • Airbag sensor assembly malfunction

  • Side No. 2 airbag sensor assembly LH

  • Airbag sensor assembly

WIRING DIAGRAM

Refer to DTCs B1627/82, B1628/82, B1637/82, B1638/82, B1647/82, B1697/82 and B1698/82 Click here.

INSPECTION PROCEDURE

Note

After turning the ignition 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.

PROCEDURE

  1. CHECK SIDE NO. 2 AIRBAG SENSOR ASSEMBLY LH

    1. Turn the ignition switch off.

      A011TU5E01
    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. Interchange the side No. 2 airbag sensor assembly LH with RH and connect the connectors to them.

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

    5. Clear the DTCs stored in memory Click here.

    6. Turn the ignition switch off.

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

    8. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC B1635/24 is output. A
      DTC B1630/23 is output. B
      DTCs B1630/23 and B1635/24 are not output. C

      Tech Tips

      Codes other than DTCs B1630/23 and B1635/24 may be output at this time, but they are not related to this check.

    9. Turn the ignition switch off.

    10. 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.

    11. Return the side No. 2 airbag sensor assembly LH and RH to their original positions and connect the connectors.

      Text in Illustration
      *1 Side No. 2 Airbag Sensor Assembly RH
      *2 Side Airbag Sensor Assembly LH
    B
    C
    A