AIRBAG SYSTEM, Diagnostic DTC:B1630/23, B1635/24

DTC Code DTC Name
B1630/23 Rear Airbag Sensor RH Circuit Malfunction
B1635/24 Rear Airbag Sensor LH Circuit Malfunction

DESCRIPTION

The rear airbag sensor LH or RH consists of the safing sensor, the diagnostic circuit, the lateral deceleration sensor, etc.

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

DTC B1630/23 or B1635/24 is recorded when a malfunction is detected in the rear airbag sensor LH or RH circuit.

DTC Code Detection Condition Trouble Area
B1630/23

Either condition is met:


  • Rear airbag sensor RH malfunction

  • Center airbag sensor assembly malfunction

  • Rear airbag sensor RH

  • Center airbag sensor assembly
B1635/24

Either condition is met:


  • Rear airbag sensor LH malfunction

  • Center airbag sensor assembly malfunction

  • Rear airbag sensor LH

  • Center airbag sensor assembly

WIRING DIAGRAM

A01GI7AE62
A01GI7AE63

INSPECTION PROCEDURE

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.

PROCEDURE


  1. CHECK FOR DTC


    1. Turn the engine switch off.

    2. Clear the DTCs stored in the memory Click here.

    3. Turn the engine switch off.

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

    5. Check for DTCs Click here.

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

      Tech Tips

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


    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    CHECK REAR AIRBAG SENSOR LH Click here

    C

  2. CHECK REAR AIRBAG SENSOR RH

    A01GI25E39

    1. Turn the engine switch off.

    2. Disconnect the negative (-) terminal cable from the battery, 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 negative (-) terminal cable to the battery, 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 the memory Click here.

    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.

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

      Tech Tips

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

    10. Turn the engine switch off.

    11. Disconnect the negative (-) terminal cable from the battery, 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.


    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE REAR AIRBAG SENSOR RH Click here

    C

    REPLACE CENTER AIRBAG SENSOR ASSEMBLY Click here

  3. CHECK REAR AIRBAG SENSOR LH

    A01GHJGE59

    1. Turn the engine switch off.

    2. Disconnect the negative (-) terminal cable from the battery, 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 negative (-) terminal cable to the battery, 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 the memory Click here.

    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.

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

      Tech Tips

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

    10. Turn the engine switch off.

    11. Disconnect the negative (-) terminal cable from the battery, 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.


    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE CENTER AIRBAG SENSOR ASSEMBLY Click here

    C

    REPLACE REAR AIRBAG SENSOR LH Click here