AIRBAG SYSTEM, Diagnostic DTC:B1630/23

DTC Code DTC Name
B1630/23 Rear Airbag Sensor RH Circuit Malfunction

DESCRIPTION

The side collision sensor RH circuit (to determine deployment of the front seat airbag assembly RH, curtain shield airbag assembly RH and front seat outer belt assembly RH) is composed of the airbag sensor assembly, side airbag sensor assembly RH and rear airbag sensor RH.

The side airbag sensor assembly RH and rear airbag sensor RH detect impacts to the vehicle and send signals to the airbag sensor assembly to determine if the airbags and pretensioners should be deployed.

DTC B1630/23 is stored when a malfunction is detected in the side collision sensor RH circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Test Mode / Check Mode
B1630/23 Rear Airbag Sensor RH Circuit Malfunction

  • The airbag sensor assembly detects a line short to ground or B+, or an open in the side collision sensor RH circuit.

  • Side airbag sensor assembly RH malfunction

  • Rear airbag sensor RH malfunction

  • Airbag sensor assembly malfunction

  • Floor wire

  • Side airbag sensor assembly RH

  • Rear airbag sensor RH

  • Airbag sensor assembly

 Does not apply to test/check mode

WIRING DIAGRAM

B0043WBE24
*a Side Airbag Sensor Assembly RH
*b Rear Airbag Sensor RH
*c Airbag Sensor Assembly

CAUTION / NOTICE / HINT

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 CONNECTORS


    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. Check that the connectors are properly connected to the side airbag sensor assembly RH and rear airbag sensor RH.

      OK
      The connectors are properly connected.

      Tech Tips

      If the connectors are not properly connected, reconnect the connectors and proceed to the next inspection.

    4. Disconnect the connectors from the side airbag sensor assembly RH and rear airbag sensor RH.

    5. Check that the terminals of the connectors are not damaged.

      OK
      The terminals are not deformed or damaged.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FLOOR WIRE

    OK

  2. CHECK FLOOR WIRE (OPEN)


    1. B0044AUC01
      *1 Rear Airbag Sensor RH
      *2 Side Airbag Sensor Assembly RH
      *3 Floor Wire
      *4 Service Wire
      *a

      Front view of wire harness connector

      (to Side Airbag Sensor Assembly RH)
      *b

      Front view of wire harness connector

      (to Rear Airbag Sensor RH)

      Using a service wire, connect terminals 2 (BCR+) and 1 (BCR-) of connector C.

      Note

      Do not forcibly insert the service wire into the terminals of the connector when connecting the wire.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      L29-1 (BCR+) - L29-2 (BCR-) Always Below 1 Ω

    3. Disconnect the service wire from connector C.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FLOOR WIRE

    OK

  3. CHECK FLOOR WIRE (SHORT TO B+)


    1. B00454SC11
      *1 Rear Airbag Sensor RH
      *2 Side Airbag Sensor Assembly RH
      *3 Floor Wire
      *a

      Front view of wire harness connector

      (to Side Airbag Sensor Assembly RH)

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

    2. Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      L29-1 (BCR+) - Body ground Ignition switch ON Below 1 V
      L29-2 (BCR-) - Body ground Ignition switch ON Below 1 V

    4. Turn the ignition switch off.

    5. 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.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FLOOR WIRE

    OK

  4. CHECK FLOOR WIRE (SHORT TO GROUND)


    1. B00454SC11
      *1 Rear Airbag Sensor RH
      *2 Side Airbag Sensor Assembly RH
      *3 Floor Wire
      *a

      Front view of wire harness connector

      (to Side Airbag Sensor Assembly RH)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L29-1 (BCR+) - Body ground Always 1 MΩ or higher
      L29-2 (BCR-) - Body ground Always 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FLOOR WIRE

    OK

  5. CHECK REAR AIRBAG SENSOR RH


    1. B0044OSC02
      *1 Rear Airbag Sensor LH
      *2 Side Airbag Sensor Assembly RH

      Connect the connector to the side airbag sensor assembly RH.

    2. Interchange the rear airbag sensor RH with LH and connect the connectors.

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

    4. Clear the DTCs stored in memory.

      Click here


      Body Electrical > SRS Airbag > Clear DTCs

    5. Turn the ignition switch off.

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

    7. Check for DTCs.

      Click here


      Body Electrical > SRS Airbag > Trouble Codes

      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.

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

    8. Turn the ignition switch off.

    9. 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.

    10. Return the rear airbag sensor RH and LH to their original positions and connect the connectors.


    B

    REPLACE REAR AIRBAG SENSOR RH Click here

    C

    USE SIMULATION METHOD TO CHECK Click here

    A

  6. CHECK SIDE AIRBAG SENSOR ASSEMBLY RH


    1. B0044ZMC02
      *1 Side Airbag Sensor Assembly LH
      *2 Airbag Sensor Assembly

      Interchange the side airbag sensor assembly RH with LH and connect the connectors.

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

    3. Clear the DTCs stored in memory.

      Click here


      Body Electrical > SRS Airbag > Clear DTCs

    4. Turn the ignition switch off.

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

    6. Check for DTCs.

      Click here


      Body Electrical > SRS Airbag > Trouble Codes

      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.

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

    7. Turn the ignition switch off.

    8. 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.

    9. Return the side airbag sensor assembly RH and LH to their original positions and connect the connectors.


    A

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

    B

    REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH Click here

    C

    USE SIMULATION METHOD TO CHECK Click here