AIRBAG SYSTEM, Diagnostic DTC:B1625, B1627

DTC Code DTC Name
B1625 Side Airbag Sensor Assembly (LH)
B1627 Side Airbag Sensor Assembly Lost Communication (LH)

DESCRIPTION

The side airbag sensor assembly LH consists of a lateral deceleration sensor, etc.

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

DTC B1625 or B1627 is stored when a malfunction is detected in the side airbag sensor assembly LH circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode
B1625 Side Airbag Sensor Assembly (LH)

Either condition is met:


  • A side airbag sensor assembly LH malfunction.

  • An airbag ECU assembly malfunction.

  • Side airbag sensor assembly LH

  • Airbag ECU assembly

 Comes on Not applicable
B1627 Side Airbag Sensor Assembly Lost Communication (LH)

Either condition is met:


  • A side airbag sensor assembly LH malfunction.

  • An airbag ECU assembly malfunction.

  • Side airbag sensor assembly LH

  • Airbag ECU assembly

 Comes on Not applicable

WIRING DIAGRAM

B0069WDE09
*a Rear Airbag Sensor LH
*b Door Side Airbag Sensor LH
*c Side Airbag Sensor Assembly LH
*d Airbag ECU Assembly

CAUTION / NOTICE / HINT

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 DTC


    1. Turn the engine 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 engine switch off.

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

    5. Check for DTCs.

      Click here


      Body Electrical > SRS Airbag > Trouble Codes
      Result
      Proceed to
      DTC B1625 or B1627 is output
      DTC B1625 and B1627 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 B1625 and B1627 are not output

    USE SIMULATION METHOD TO CHECK Click here

    DTC B1625 or B1627 is output

  2. CHECK SIDE AIRBAG SENSOR ASSEMBLY LH


    1. B006EHOC15
      *1 Side Airbag Sensor Assembly RH
      *2 Rear Airbag Sensor LH

      Turn the engine switch off.

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

    3. Interchange the side airbag sensor assembly 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 engine 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 engine switch off.

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

    9. Check for DTCs.

      Click here


      Body Electrical > SRS Airbag > Trouble Codes
      Result
      Proceed to
      DTC B1620 or B1622 is output
      DTC B1625 or B1627 is output
      DTC B1620, B1622, B1625 and B1627 are not output

      Tech Tips

      Codes other than DTC B1620, B1622, B1625 and B1627 may be output at this time, but they are not related to this check.

    10. Turn the engine switch off.

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

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


    DTC B1620 or B1622 is output

    REPLACE SIDE AIRBAG SENSOR ASSEMBLY LH Click here

    DTC B1625 or B1627 is output

    REPLACE AIRBAG ECU ASSEMBLY Click here

    DTC B1620, B1622, B1625 and B1627 are not output

    USE SIMULATION METHOD TO CHECK Click here