AIRBAG SYSTEM(w/ Occupant Classification System), Diagnostic DTC:B1630/23, B1632/81, B1635/24, B1637/82

DTC Code DTC Name
B1630/23 Rear Airbag Sensor RH Circuit Malfunction
B1632/81 Lost Communication with Rear Airbag Sensor RH
B1635/24 Rear Airbag Sensor LH Circuit Malfunction
B1637/82 Lost Communication with Rear Airbag Sensor LH

DESCRIPTION

The rear airbag sensor LH or 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.

DTC B1630/23, B1632/81, B1635/24 or B1637/82 is stored when a malfunction is detected in the rear airbag sensor LH or RH circuit.

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

Either condition is met:


  • A rear airbag sensor RH malfunction.

  • An airbag sensor assembly malfunction.

  • Rear airbag sensor RH

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

Either condition is met:


  • A rear airbag sensor RH malfunction.

  • An airbag sensor assembly malfunction.

  • Rear airbag sensor RH

  • Airbag sensor assembly
B1635/24 Rear Airbag Sensor LH Circuit Malfunction

Either condition is met:


  • A rear airbag sensor LH malfunction.

  • An airbag sensor assembly malfunction.

  • Rear airbag sensor LH

  • Airbag sensor assembly
B1637/82 Lost Communication with Rear Airbag Sensor LH

Either condition is met:


  • A rear airbag sensor LH malfunction.

  • An airbag sensor assembly malfunction.

  • Rear airbag sensor LH

  • Airbag sensor assembly

WIRING DIAGRAM

A01V8TXE03
for RH Side
*a Airbag Sensor Assembly
*b Rear Airbag Sensor RH
*c Door Side Airbag Sensor RH
A01V8TXE04
for LH Side
*a Airbag Sensor Assembly
*b Rear Airbag Sensor LH
*c Door Side Airbag Sensor LH

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

  • 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 sensor assembly, refer to initialization.

    Click here

PROCEDURE


  1. CHECK DTC


    1. Turn the ignition switch to ON.

    2. Clear the DTCs stored in memory.

      Click here


      Body Electrical > SRS Airbag > Clear DTCs

    3. Turn the ignition switch off.

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

    5. Check for DTCs.

      Click here


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

      Tech Tips

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


    DTC B1630/23 or B1632/81 is output

    CHECK REAR AIRBAG SENSOR RH Click here

    DTC B1630/23, B1632/81, B1635/24 and B1637/82 are not output

    USE SIMULATION METHOD TO CHECK Click here

    DTC B1635/24 or B1637/82 is output

  2. CHECK REAR AIRBAG SENSOR LH


    1. A01V8MWC01
      *1 Rear Airbag Sensor RH
      *2 Airbag Sensor Assembly

      Turn the ignition switch off.

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

    3. Interchange the rear 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 ignition switch to ON, 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 ignition switch off.

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

    9. Check for DTCs.

      Click here


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

      Tech Tips

      Codes other than DTC 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 ignition switch off.

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

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


    DTC B1630/23 or B1632/81 is output

    REPLACE REAR AIRBAG SENSOR LH Click here

    DTC B1635/24 or B1637/82 is output

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

    DTC B1630/23, B1632/81, B1635/24 and B1637/82 are not output

    USE SIMULATION METHOD TO CHECK Click here

  3. CHECK REAR AIRBAG SENSOR RH


    1. A01VAFHC17
      *1 Rear Airbag Sensor LH
      *2 Airbag Sensor Assembly

      Turn the ignition switch off.

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

    3. Interchange the rear airbag sensor RH with LH 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 ignition switch to ON, 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 ignition switch off.

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

    9. Check for DTCs.

      Click here


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

      Tech Tips

      Codes other than DTC 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 ignition switch off.

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

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


    DTC B1635/24 or B1637/82 is output

    REPLACE REAR AIRBAG SENSOR RH Click here

    DTC B1630/23 or B1632/81 is output

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

    DTC B1630/23, B1632/81, B1635/24 and B1637/82 are not output

    USE SIMULATION METHOD TO CHECK Click here