AIRBAG SYSTEM, Diagnostic DTC:B1630/23, B1632/81

DTC Code DTC Name
B1630/23 Rear Airbag Sensor RH Circuit Malfunction
B1632/81 Lost Communication with Rear Airbag Sensor RH

DESCRIPTION

The rear airbag sensor assembly RH consists of a lateral deceleration sensor, etc.

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

These DTCs are stored when a malfunction is detected in the rear airbag sensor assembly RH circuit.

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

Either condition is met:


  • A side airbag sensor assembly RH malfunction.

  • An airbag sensor assembly malfunction.

  • Side airbag sensor assembly RH

  • Airbag sensor assembly
B1632/81 Lost Communication with Rear Airbag Sensor RH

Either condition is met:


  • A side airbag sensor assembly RH malfunction.

  • An airbag sensor assembly malfunction.

  • Side airbag sensor assembly RH

  • Airbag sensor assembly

WIRING DIAGRAM

A01MHQWE01
*a Side Airbag Sensor Assembly RH
*b Door Side Airbag Sensor RH
*c Rear Airbag Sensor Assembly RH
*d Airbag Sensor Assembly

CAUTION / NOTICE / HINT

Note


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

    Click here

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

    Click here

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

    Click here

PROCEDURE


  1. CHECK DTC


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

    2. Clear the DTCs stored in memory.

      Click here


      Body Electrical > SRS Airbag > Clear DTCs

    3. Turn the power switch off.

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

    5. Check for DTCs.

      Click here


      Body Electrical > SRS Airbag > Trouble Codes
      Result
      Result Proceed to
      DTC B1630/23 or B1632/81 is output A
      DTC B1630/23 or B1632/81 is not output B

      Tech Tips

      Codes other than DTCs B1630/23 and B1632/81 may be output at this time, but they are not related to this check.


    B

    USE SIMULATION METHOD TO CHECK Click here

    A

  2. CHECK REAR AIRBAG SENSOR ASSEMBLY RH


    1. A01MJ3MC01
      *1 Rear Airbag Sensor Assembly LH
      *2 Side Airbag Sensor Assembly RH

      Turn the power switch off.

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

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

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

    5. Turn the power 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 power switch off.

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

    9. Check for DTCs.

      Click here


      Body Electrical > SRS Airbag > Trouble Codes
      Result
      Result Proceed to
      DTC B1630/23 or B1632/81 is output A
      DTC B1635/24 or B1637/82 is output B
      DTCs B1630/23, B1632/81, B1635/24 and B1637/82 are not output C

      Tech Tips

      Codes other than DTCs B1630/23, B1632/81, B1635/24 and B1637/82 may be output at this time, but they are not related to this check.

    10. Turn the power switch off.

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

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


    A

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

    B

    REPLACE REAR AIRBAG SENSOR ASSEMBLY RH Click here

    C

    USE SIMULATION METHOD TO CHECK Click here