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Home >> Lexus >> 2011 >> LX 570 >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System (Diagnostic Codes (B1000/31 - B1662/45)) >> Airbag System >> DTC B1630/23: Rear Airbag Sensor RH Circuit Malfunction; DTC B1695/16: Door Side Airbag Sensor LH Malfunction (08/2011 - ) >> Procedure

DTC B1630/23: Rear Airbag Sensor RH Circuit Malfunction; DTC B1695/16: Door Side Airbag Sensor LH Malfunction (08/2011 - ): Procedure

  1. CHECK FOR DTC 
    1. Turn the engine switch on (IG).
    2. Clear the DTCs stored in the memory. Refer to DTC CHECK / CLEAR .
    3. Turn the engine switch off.
    4. Turn the engine switch on (IG), and wait for at least 60 seconds.
    5. Check for DTCs. Refer to DTC CHECK / CLEAR .
      RESULT

      Result Proceed to
      DTC B1630 and B1695 are not output A
      DTC B1695 is output B
      DTC B1630 is output C

    A → See step   4 

    B → See step   3 

    C: Go to next step 

  2. CHECK REAR AIRBAG SENSOR RH 
    Fig 1: Identifying Rear Airbag Sensor RH And Side Airbag Sensor RH Circuit
    GTY359753Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the engine switch off.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Temporarily replace the rear airbag sensor RH with a new one.
    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 the memory. Refer to DTC CHECK / CLEAR .
    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 .

      OK

      DTC B1630 is not output.

      HINT: 

      Codes other than DTC B1630 may be output at this time, but they are not related to this check.

    NG → See step   6 

    OK → See step   5 

  3. CHECK SIDE AIRBAG SENSOR LH 
    Fig 2: Identifying Rear Airbag Sensor LH And Side Airbag Sensor LH Circuit
    GTY360273Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. 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 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 engine switch on (IG), and wait for at least 60 seconds.
    6. Clear the DTCs stored in the memory. Refer to DTC CHECK / CLEAR .
    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 .
      RESULT

      Result Proceed to
      DTC B1690 and B1695 are not output A
      DTC B1695 is output B
      DTC B1690 is output C

      HINT: 

      Codes other than DTC B1690 and B1695 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 RH and LH to their original positions and connect the connectors to them.

    A → See step   7 

    B → See step   8 

    C → See step   9 

  4. USE SIMULATION METHOD TO CHECK. Refer to  DIAGNOSIS SYSTEM 
  5. REPLACE REAR AIRBAG SENSOR RH. Refer to  REMOVAL 
  6. REPLACE CENTER AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL 
  7. USE SIMULATION METHOD TO CHECK. Refer to  DIAGNOSIS SYSTEM 
  8. REPLACE CENTER AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL 
  9. REPLACE SIDE AIRBAG SENSOR LH. Refer to  REMOVAL 
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