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Home >> Toyota >> 2019 >> Sequoia SR5, 4WD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System - Diagnostic Codes (2 Of 3) >> Airbag System >> DTC B1690-15: Driver Side Door Side Airbag Sensor Malfunction; DTC B1695-16: Passenger Side Door Side Airbag Sensor Malfunction [08/2015 - 08/2017] >> Procedure

DTC B1690-15: Driver Side Door Side Airbag Sensor Malfunction; DTC B1695-16: Passenger Side Door Side Airbag Sensor Malfunction [08/2015 - 08/2017]: Procedure

  1. CHECK FOR DTC 
    1. Turn the ignition switch to ON, and wait for at least 60 seconds.
    2. Clear the DTCs stored in the memory (Refer to DTC CHECK / CLEAR [08/2015 - 08/2017] ).
    3. Turn the ignition switch off.
    4. Turn the ignition switch to ON, and wait for at least 60 seconds.
    5. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2017] ).
      RESULT

      Result Proceed to
      DTC B1695-16 is output A
      DTC B1690-15 is output B
      DTC B1690-15 and B1695-16 are not output C

      HINT: 

      Codes other than past DTC B1690-15 and B1695-16 may be output at this time, but they are not related to this check.

    Result: 

    B 

    See step  12

    Result: 

    C 

    USE SIMULATION METHOD TO CHECK 

    (Refer to DIAGNOSIS SYSTEM [08/2015 - 08/2017] )

    Result: 

    A 

    See step  2

  2. CHECK CONNECTION OF CONNECTORS 
    1. Turn the ignition switch off.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Check that the connectors are properly connected to the center airbag sensor and the side airbag sensor RH.

      OK

      The connectors are properly connected.

    Result: 

    NG 

    CONNECT CONNECTORS PROPERLY 

    Result: 

    OK 

    See step  3

  3. CHECK CONNECTORS 
    1. Disconnect the connectors from the center airbag sensor and side airbag sensor RH.
    2. Check that the connectors (on the center airbag sensor side and the side airbag sensor RH side) are not damaged (Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [08/2015 - 08/2019] ).

      OK

      The connectors are not deformed or damaged.

    Result: 

    NG 

    REPLACE HARNESS AND CONNECTOR 

    Result: 

    OK 

    See step  4

  4. CHECK SIDE AIRBAG SENSOR RH CIRCUIT 
    GTY549107Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      L10-4 (BBR+) - Body ground Ignition switch ON Below 1 V
      L10-3 (BBR-) - Body ground Ignition switch ON Below 1 V
    4. Turn the ignition switch off.
    5. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    6. Disconnect the connectors from the center airbag sensor and side airbag sensor RH.
    7. Using a service wire, connect terminals 8 (BBP+) and 11 (BBP-) of connector B.
      NOTE:

      Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.

    8. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      L10-4 (BBR+) - L10-3 (BBR-) Always Below 1 Ω
    9. Disconnect the service wire from the connector B.
    10. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      L10-4 (BBR+) - L10-3 (BBR-) Always 1 MΩ or higher
      L10-4 (BBR+) - Body ground Always 1 MΩ or higher
      L10-3 (BBR-) - Body ground Always 1 MΩ or higher

    Result: 

    NG 

    See step  10

    Result: 

    OK 

    See step  5

  5. CHECK SIDE AIRBAG SENSOR RH 
    1. Interchange the side airbag sensor LH with RH and connect the connectors to them.
      GTY133681Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the negative (-) terminal to the battery, and wait for at least 2 seconds.
    3. Turn the ignition switch to ON, and wait for at least 60 seconds.
    4. Clear the DTCs stored in the memory (Refer to DTC CHECK / CLEAR [08/2015 - 08/2017] ).
    5. Turn the ignition switch off.
    6. Turn the ignition switch to ON, and wait for at least 90 seconds.
    7. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2017] ).
      RESULT

      Result Proceed to
      DTC B1695-16 is output A
      DTC B1690-15 is output B
      DTC B1690-15 and B1695-16 are not output C
    8. Turn the ignition switch off.
    9. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    10. Return the side airbag sensor RH and LH to their original positions and connect the connectors to them.

    Result: 

    B 

    REPLACE SIDE AIRBAG SENSOR RH 

    (Refer to REMOVAL [08/2015 - 08/2019] )

    Result: 

    C 

    USE SIMULATION METHOD TO CHECK 

    (Refer to DIAGNOSIS SYSTEM [08/2015 - 08/2017] )

    Result: 

    A 

    See step  6

  6. CHECK CONNECTION OF CONNECTORS 
    1. Check that the connector are properly connected to the rear airbag sensor RH.

      OK

      The connectors are properly connected.

    Result: 

    NG 

    CONNECT CONNECTORS PROPERLY 

    Result: 

    OK 

    See step  7

  7. CHECK CONNECTORS 
    1. Disconnect the connectors from the side airbag sensor RH and rear airbag sensor RH.
    2. Check that the connectors (on the rear airbag sensor RH side) is not damaged (Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [08/2015 - 08/2019] ).

      OK

      The connectors are not deformed or damaged.

    Result: 

    NG 

    REPLACE HARNESS AND CONNECTOR 

    Result: 

    OK 

    See step  8

  8. CHECK REAR AIRBAG SENSOR RH CIRCUIT 
    GTY540556Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Connect the negative (-) terminal to the battery, and wait for at least 2 seconds.
    2. Turn the ignition switch to ON, and wait for at least 60 seconds.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      L10-1 (BCR+) - Body ground Ignition switch ON Below 1 V
      L10-2 (BCR-) - Body ground Ignition switch ON Below 1 V
    4. Turn the ignition switch off.
    5. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    6. Disconnect the connectors from the side airbag sensor RH and rear airbag sensor RH.
    7. Using a service wire, connect terminals 2 (BCR+) and 1 (BCR-) of connector E.
      NOTE:

      Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.

    8. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      L10-1 (BCR+) - L10-2 (BCR-) Always Below 1 Ω
    9. Disconnect the service wire from the connector E.
    10. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      L10-1 (BCR+) - L10-2 (BCR-) Always 1 MΩ or higher
      L10-1 (BCR+) - Body ground Always 1 MΩ or higher
      L10-2 (BCR-) - Body ground Always 1 MΩ or higher

    Result: 

    NG 

    See step  11

    Result: 

    OK 

    See step  9

  9. CHECK REAR AIRBAG SENSOR RH 
    1. Turn the ignition switch off.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Disconnect the rear airbag sensor RH connector.
    4. Connect the negative (-) terminal to the battery, 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 the memory (Refer to DTC CHECK / CLEAR [08/2015 - 08/2017] ).
    7. Turn the ignition switch off.
    8. Turn the ignition switch to ON, and wait for at least 60 seconds.
    9. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2017] ).

      OK

      DTC B1695-16 is output.

    Result: 

    OK 

    REPLACE CENTER AIRBAG SENSOR ASSEMBLY 

    (Refer to REMOVAL [08/2015 - 08/2017] )

    Result: 

    NG 

    REPLACE REAR AIRBAG SENSOR RH 

    (Refer to REMOVAL [08/2015 - 08/2019] )

  10. CHECK NO. 2 FLOOR WIRE (CENTER AIRBAG SENSOR - FRONT DOOR WIRE RH) 
    GTY597857Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the No. 2 floor wire connector from the door wire RH.
    2. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    3. Turn the ignition switch to ON.
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      LP1-4 (BBR+) - Body ground Ignition switch ON Below 1 V
      LP1-3 (BBR-) - Body ground Ignition switch ON Below 1 V
    5. Turn the ignition switch off.
    6. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    7. Using a service wire, connect terminals 8 (BBP+) and 11 (BBP-) of connector B.
      NOTE:

      Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.

    8. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      LP1-4 (BBR+) - LP1-3 (BBR-) Always Below 1 Ω
    9. Disconnect the service wire from connector B.
    10. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      LP1-4 (BBR+) - LP1-3 (BBR-) Always 1 MΩ or higher
      LP1-4 (BBR+) - Body ground Always 1 MΩ or higher
      LP1-3 (BBR-) - Body ground Always 1 MΩ or higher

    Result: 

    OK 

    REPLACE FRONT DOOR WIRE RH 

    Result: 

    NG 

    REPLACE NO. 2 FLOOR WIRE 

  11. CHECK FRONT DOOR WIRE RH (SIDE AIRBAG SENSOR RH - NO. 2 FLOOR WIRE) 
    GTY556836Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the No. 2 floor wire connector from the door wire RH.
    2. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    3. Turn the ignition switch to ON.
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      L10-1 (BCR+) - Body ground Ignition switch ON Below 1 V
      L10-2 (BCR-) - Body ground Ignition switch ON Below 1 V
    5. Turn the ignition switch off.
    6. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    7. Using a service wire, connect terminals 2 (BCR+) and 1 (BCR-) of connector C.
      NOTE:

      Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.

    8. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      L10-1 (BCR+) - L10-2 (BCR-) Always Below 1 Ω
    9. Disconnect the service wire from connector C.
    10. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      L10-1 (BCR+) - L10-2 (BCR-) Always 1 MΩ or higher
      L10-1 (BCR+) - Body ground Always 1 MΩ or higher
      L10-2 (BCR-) - Body ground Always 1 MΩ or higher

    Result: 

    OK 

    REPLACE NO. 2 FLOOR WIRE 

    Result: 

    NG 

    REPLACE FRONT DOOR WIRE RH 

  12. CHECK CONNECTION OF CONNECTORS 
    1. Turn the ignition switch off.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Check that the connectors are properly connected to the center airbag sensor and the side airbag sensor LH.

      OK

      The connectors are properly connected.

    Result: 

    NG 

    CONNECT CONNECTORS PROPERLY 

    Result: 

    OK 

    See step  13

  13. CHECK CONNECTORS 
    1. Disconnect the connectors from the center airbag sensor and side airbag sensor LH.
    2. Check that the connectors (on the center airbag sensor side and the side airbag sensor LH side) are not damaged (Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [08/2015 - 08/2019] ).

      OK

      The connectors are not deformed or damaged.

    Result: 

    NG 

    REPLACE HARNESS AND CONNECTOR 

    Result: 

    OK 

    See step  14

  14. CHECK SIDE AIRBAG SENSOR LH CIRCUIT 
    GTY544820Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      M12-4 (BBL+) - Body ground Ignition switch ON Below 1 V
      M12-3 (BBL-) - Body ground Ignition switch ON Below 1 V
    4. Turn the ignition switch off.
    5. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    6. Disconnect the connectors from the side airbag sensor LH and door side airbag sensor LH.
    7. Using a service wire, connect terminals 8 (BBD+) and 15 (BBD-) of connector B.
      NOTE:

      Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.

    8. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      M12-4 (BBL+) - M12-3 (BBL-) Always Below 1 Ω
    9. Disconnect the service wire from the connector B.
    10. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      M12-4 (BBL+) - M12-3 (BBL-) Always 1 MΩ or higher
      M12-4 (BBL+) - Body ground Always 1 MΩ or higher
      M12-3 (BBL-) - Body ground Always 1 MΩ or higher

    Result: 

    NG 

    See step  20

    Result: 

    OK 

    See step  15

  15. CHECK SIDE AIRBAG SENSOR LH 
    1. Interchange the side airbag sensor RH with LH and connect the connectors to them.
      GTY564958Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the negative (-) terminal to the battery, and wait for at least 2 seconds.
    3. Turn the ignition switch to ON, and wait for at least 60 seconds.
    4. Clear the DTCs stored in the memory (Refer to DTC CHECK / CLEAR [08/2015 - 08/2017] ).
    5. Turn the ignition switch off.
    6. Turn the ignition switch to ON, and wait for at least 60 seconds.
    7. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2017] ).
      RESULT

      Result Proceed to
      DTC B1690-15 is output A
      DTC B1695-16 is output B
      DTC B1690-15 and B1695-16 are not output C
    8. Turn the ignition switch off.
    9. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    10. Return the side airbag sensor RH and LH to their original positions and connect the connectors to them.

    Result: 

    B 

    REPLACE SIDE AIRBAG SENSOR LH 

    (Refer to REMOVAL [08/2015 - 08/2019] )

    Result: 

    C 

    USE SIMULATION METHOD TO CHECK 

    (Refer to DIAGNOSIS SYSTEM [08/2015 - 08/2017] )

    Result: 

    A 

    See step  16

  16. CHECK CONNECTION OF CONNECTORS 
    1. Check that the connector are properly connected to the rear airbag sensor LH.

      OK

      The connectors are properly connected.

    Result: 

    NG 

    CONNECT CONNECTORS PROPERLY 

    Result: 

    OK 

    See step  17

  17. CHECK CONNECTORS 
    1. Disconnect the connectors from the side airbag sensor LH and rear airbag sensor LH.
    2. Check that the connectors (on the rear airbag sensor LH side) is not damaged (Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [08/2015 - 08/2019] ).

      OK

      The connectors are not deformed or damaged.

    Result: 

    NG 

    REPLACE HARNESS AND CONNECTOR 

    Result: 

    OK 

    See step  18

  18. CHECK REAR AIRBAG SENSOR LH CIRCUIT 
    GTY564961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Connect the negative (-) terminal to the battery, and wait for at least 2 seconds.
    2. Turn the ignition switch to ON, and wait for at least 60 seconds.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      M12-1 (BCL+) - Body ground Ignition switch ON Below 1 V
      M12-2 (BCL-) - Body ground Ignition switch ON Below 1 V
    4. Turn the ignition switch off.
    5. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    6. Disconnect the connectors from the side airbag sensor LH and rear airbag sensor LH.
    7. Using a service wire, connect terminals 1 (BCL+) and 2 (BCL-) of connector E.
      NOTE:

      Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.

    8. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      M12-1 (BCL+) - M12-2 (BCL-) Always Below 1 Ω
    9. Disconnect the service wire from the connector E.
    10. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      M12-1 (BCL+) - M12-2 (BCL-) Always 1 MΩ or higher
      M12-1 (BCL+) - Body ground Always 1 MΩ or higher
      M12-2 (BCL-) - Body ground Always 1 MΩ or higher

    Result: 

    NG 

    See step  21

    Result: 

    OK 

    See step  19

  19. CHECK REAR AIRBAG SENSOR LH 
    1. Turn the ignition switch off.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Disconnect the rear airbag sensor LH connector.
    4. Connect the negative (-) terminal to the battery, 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 the memory (Refer to DTC CHECK / CLEAR [08/2015 - 08/2017] ).
    7. Turn the ignition switch off.
    8. Turn the ignition switch to ON, and wait for at least 60 seconds.
    9. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2017] ).

      OK

      DTC B1690-15 is output.

    Result: 

    OK 

    REPLACE CENTER AIRBAG SENSOR ASSEMBLY 

    (Refer to REMOVAL [08/2015 - 08/2017] )

    Result: 

    NG 

    REPLACE REAR AIRBAG SENSOR LH 

    (Refer to REMOVAL [08/2015 - 08/2019] )

  20. CHECK FLOOR WIRE (CENTER AIRBAG SENSOR - FRONT DOOR WIRE LH) 
    GTY603076Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the floor wire connector from the door wire LH.
    2. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    3. Turn the ignition switch to ON.
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      MO1-4 (BBL+) - Body ground Ignition switch ON Below 1 V
      MO1-3 (BBL-) - Body ground Ignition switch ON Below 1 V
    5. Turn the ignition switch off.
    6. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    7. Using a service wire, connect terminals 8 (BBD+) and 15 (BBD-) of connector B.
      NOTE:

      Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.

    8. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      MO1-4 (BBL+) - MO1-3 (BBL-) Always Below 1 Ω
    9. Disconnect the service wire from connector B.
    10. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      MO1-4 (BBL+) - MO1-3 (BBL-) Always 1 MΩ or higher
      MO1-4 (BBL+) - Body ground Always 1 MΩ or higher
      MO1-3 (BBL-) - Body ground Always 1 MΩ or higher

    Result: 

    OK 

    REPLACE FRONT DOOR WIRE LH 

    Result: 

    NG 

    REPLACE FLOOR WIRE 

  21. CHECK FRONT DOOR WIRE LH (SIDE AIRBAG SENSOR LH - FLOOR WIRE) 
    GTY587438Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the floor wire connector from the door wire LH.
    2. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    3. Turn the ignition switch to ON.
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      M12-1 (BCL+) - Body ground Ignition switch ON Below 1 V
      M12-2 (BCL-) - Body ground Ignition switch ON Below 1 V
    5. Turn the ignition switch off.
    6. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    7. Using a service wire, connect terminals 2 (BCL+) and 1 (BCL-) of connector C.
      NOTE:

      Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.

    8. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      M12-1 (BCL+) - M12-2 (BCL-) Always Below 1 Ω
    9. Disconnect the service wire from connector C.
    10. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      M12-1 (BCL+) - M12-2 (BCL-) Always 1 MΩ or higher
      M12-1 (BCL+) - Body ground Always 1 MΩ or higher
      M12-2 (BCL-) - Body ground Always 1 MΩ or higher

    Result: 

    OK 

    REPLACE FLOOR WIRE 

    Result: 

    NG 

    REPLACE FRONT DOOR WIRE LH 

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