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Home >> Lexus >> 2021 >> LC 500 2D Coupe >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System - Diagnostic Codes (Coupe) (1 Of 5) >> Airbag System >> DTC B162A: Side Airbag Sensor Assembly No. 2 (RH) [04/2020 - 05/2023] >> Procedure

DTC B162A: Side Airbag Sensor Assembly No. 2 (RH) [04/2020 - 05/2023]: Procedure

  1. CHECK SIDE AIRBAG SENSOR ASSEMBLY RH 
    1. Turn the engine switch off.
      GTY505878Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Side Airbag Sensor Assembly LH
      *2 Airbag ECU Assembly
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Interchange the side airbag sensor assembly RH with LH and connect the connectors.
    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.

      Refer to DTC CHECK / CLEAR [04/2020 - ]

      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.

      Refer to DTC CHECK / CLEAR [04/2020 - ]

      Body Electrical > SRS Airbag > Trouble Codes 

      Result

      Proceed to
      DTC B162A is output
      DTC B163A is output
      DTCs B162A and B163A are not output

      HINT: 

      Codes other than DTCs B162A and B163A 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.

    Result: 

    DTC B162A is output 

    REPLACE AIRBAG ECU ASSEMBLY. Refer to  REMOVAL [03/2017 - 05/2023] 

    Result: 

    DTC B163A is output 

    REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH. Refer to  REMOVAL [03/2017 - 05/2023] 

    Result: 

    DTCs B162A and B163A are not output 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2020 - 05/2023]