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AIRBAG SYSTEM, Diagnostic DTC:B1692/81, B1697/82

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DTC Code DTC Name
B1692/81 Lost Communication with Door Side Airbag Sensor RH
B1697/82 Lost Communication with Door Side Airbag Sensor LH
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DESCRIPTION

The circuit for the side collision sensor LH or RH (to determine deployment of the front seat side airbag LH or RH and curtain shield airbag LH or RH) is composed of the center airbag sensor, rear airbag sensor LH or RH and side airbag sensor LH or RH.

The rear airbag sensor LH or RH and side airbag sensor LH or RH detect impacts to the vehicle and send signals to the center airbag sensor to determine if the airbag should be deployed.

DTC B1692/81 or B1697/82 is stored when a malfunction is detected in the circuit for the side collision sensor LH or RH (to determine deployment of the front seat side airbag LH or RH and curtain shield airbag LH or RH).

DTC Code DTC Detection Condition Trouble Area
B1692/81

One of the following conditions is met:


  • The center airbag sensor detects a line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to B+ signal in the circuit for the side collision sensor RH (to determine deployment of the front seat side airbag RH and curtain shield airbag RH) for 2 seconds.

  • A side airbag sensor RH malfunction.

  • A rear airbag sensor RH malfunction.

  • A center airbag sensor malfunction.

  • Floor wire

  • Front door wire RH

  • Side airbag sensor RH

  • Rear airbag sensor RH

  • Center airbag sensor assembly
B1697/82

One of the following conditions is met:


  • The center airbag sensor detects a line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to B+ signal in the circuit for the side collision sensor LH (to determine deployment of the front seat side airbag LH and curtain shield airbag LH) for 2 seconds.

  • A side airbag sensor LH malfunction.

  • A rear airbag sensor LH malfunction.

  • A center airbag sensor malfunction.

  • No. 2 floor wire

  • Front door wire LH

  • Side airbag sensor LH

  • Rear airbag sensor LH

  • Center airbag sensor assembly
A01DORAE12
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WIRING DIAGRAM

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INSPECTION PROCEDURE

Note:

  • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice 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).

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PROCEDURE


  1. Click here

    CHECK FOR DTC


    1. Turn the ignition switch to ON.

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

    3. Turn the ignition switch off.

    4. Turn the ignition switch to ON, and wait for at least 60 seconds.

    5. Check for DTCs (Click here).

      Table 1. Result
      Result Proceed to
      DTC B1692 and B1697 are not output A
      DTC B1697 is output B
      DTC B1692 is output C
      Tip:

      Codes other than DTC B1692 and B1697 may be output at this time, but they are not related to this check.


  2. Click here

    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, rear airbag sensor RH and side airbag sensor RH.

      OK
      The connectors are properly connected.

  3. Click here

    CHECK CONNECTORS


    1. Disconnect the connectors from the center airbag sensor, rear airbag sensor RH and side airbag sensor RH.

    2. A01DTGLE01

      Check that the connectors (on the center airbag sensor side, rear airbag sensor RH side and side airbag sensor RH side) are not damaged.

      OK
      The connectors are not deformed or damaged.
      Table 2. Text in Illustration
      *1 Rear Airbag Sensor RH
      *2 Side Airbag Sensor RH
      *3 Center Airbag Sensor

  4. Click here

    CHECK REAR AIRBAG SENSOR RH


    1. A01DNFOE03

      Connect the connectors to the center airbag sensor and side airbag sensor RH.

    2. Interchange the rear airbag sensor LH with RH and connect the connectors to them.

    3. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

    4. Turn the ignition switch to ON, and wait for at least 60 seconds.

    5. Clear the DTCs stored in memory (Click here).

    6. Turn the ignition switch off.

    7. Turn the ignition switch to ON, and wait for at least 60 seconds.

    8. Check for DTCs (Click here).

      Table 3. Result
      Result Proceed to
      DTC B1692 and B1697 are not output A
      DTC B1697 is output (for 3 Door) B
      DTC B1697 is output (for 5 Door) C
      DTC B1692 is output D
      Tip:

      Codes other than DTC B1692 and B1697 may be output at this time, but they are not related to this check.

      Table 4. Text in Illustration
      *1 Rear Airbag Sensor LH
      *2 Center Airbag Sensor

    9. Turn the ignition switch off.

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

    11. Return the rear airbag sensor RH and LH to their original positions and connect the connectors to them.


  5. Click here

    CHECK SIDE AIRBAG SENSOR RH CIRCUIT


    1. A01DSXHE03

      Disconnect the connectors from the side airbag sensor RH and rear airbag sensor RH.

      Table 5. Text in Illustration
      *1 Side Airbag Sensor RH *2 Rear Airbag Sensor RH
      *3 Connector E *4 Connector B
      *5 Service Wire - -
      *a

      Rear view of wire harness connector

      (to Side Airbag Sensor RH)

      		 *b

      Rear view of wire harness connector

      (to Rear Airbag Sensor RH)

    2. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      Q4-1 (BCR+) - Body ground Ignition switch ON Below 1 V
      Q4-2 (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. Using a service wire, connect terminals 2 (BCR+) and 1 (BCR-) of connector E.

      Note:

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q4-1 (BCR+) - Q4-2 (BCR-) Always Below 1 Ω

    8. Disconnect the service wire from connector E.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q4-1 (BCR+) - Q4-2 (BCR-) Always 1 MΩ or higher
      Q4-1 (BCR+) - Body ground Always 1 MΩ or higher
      Q4-2 (BCR-) - Body ground Always 1 MΩ or higher

  6. Click here

    CHECK SIDE AIRBAG SENSOR RH


    1. A01DPPJE15

      Connect the connector to the rear airbag sensor RH.

    2. Interchange the side airbag sensor LH with RH and connect the connectors to them.

    3. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

    4. Turn the ignition switch to ON, and wait for at least 60 seconds.

    5. Clear the DTCs stored in memory (Click here).

    6. Turn the ignition switch off.

    7. Turn the ignition switch to ON, and wait for at least 60 seconds.

    8. Check for DTCs (Click here).

      Table 6. Result
      Result Proceed to
      DTC B1692 and B1697 are not output A
      DTC B1697 is output B
      DTC B1692 is output C
      Tip:

      Codes other than DTC B1692 and B1697 may be output at this time, but they are not related to this check.

      Table 7. Text in Illustration
      *1 Side Airbag Sensor LH
      *2 Rear Airbag Sensor RH

    9. Turn the ignition switch off.

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

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


  7. Click here

    CHECK FLOOR WIRE (REAR AIRBAG SENSOR RH - FRONT DOOR WIRE RH)


    1. A01DMV6E02

      Disconnect the floor wire connector from the front door wire RH.

      Table 8. Text in Illustration
      *1 Side Airbag Sensor RH *2 Rear Airbag Sensor RH
      *3 Front Door Wire RH *4 Floor Wire
      *5 Connector C *6 Connector B
      *7 Service Wire - -
      *a

      Front view of wire harness connector

      (to Front Door Wire RH)

      		 *b

      Rear view of wire harness connector

      (to Rear Airbag Sensor RH)

    2. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      Q4-1 (BCR+) - Body ground Ignition switch ON Below 1 V
      Q4-2 (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. Using a service wire, connect terminals 1 (BCR+) and 2 (BCR-) of connector C.

      Note:

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q4-1 (BCR+) - Q4-2 (BCR-) Always Below 1 Ω

    8. Disconnect the service wire from connector C.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q4-1 (BCR+) - Q4-2 (BCR-) Always 1 MΩ or higher
      Q4-1 (BCR+) - Body ground Always 1 MΩ or higher
      Q4-2 (BCR-) - Body ground Always 1 MΩ or higher

  8. Click here

    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, rear airbag sensor LH and side airbag sensor LH.

      OK
      The connectors are properly connected.

  9. Click here

    CHECK CONNECTORS


    1. Disconnect the connectors from the center airbag sensor, rear airbag sensor LH and side airbag sensor LH.

    2. A01DOMDE01

      Check that the connectors (on the center airbag sensor side, rear airbag sensor LH side and side airbag sensor LH side) are not damaged.

      OK
      The connectors are not deformed or damaged.
      Table 9. Text in Illustration
      *1 Rear Airbag Sensor LH
      *2 Side Airbag Sensor LH
      *3 Center Airbag Sensor

  10. Click here

    CHECK REAR AIRBAG SENSOR LH


    1. A01DSNXE01

      Connect the connector to the center airbag sensor and side airbag sensor LH.

    2. Interchange the rear airbag sensor LH with RH and connect the connectors to them.

    3. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

    4. Turn the ignition switch to ON, and wait for at least 60 seconds.

    5. Clear the DTCs stored in memory (Click here).

    6. Turn the ignition switch off.

    7. Turn the ignition switch to ON, and wait for at least 60 seconds.

    8. Check for DTCs (Click here).

      Table 10. Result
      Result Proceed to
      DTC B1692 and B1697 are not output A
      DTC B1692 is output (for 3 Door) B
      DTC B1692 is output (for 5 Door) C
      DTC B1697 is output D
      Tip:

      Codes other than DTC B1692 and B1697 may be output at this time, but they are not related to this check.

      Table 11. Text in Illustration
      *1 Rear Airbag Sensor RH
      *2 Center Airbag Sensor

    9. Turn the ignition switch off.

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

    11. Return the rear airbag sensor RH and LH to their original positions and connect the connectors to them.


  11. Click here

    CHECK SIDE AIRBAG SENSOR LH CIRCUIT


    1. A01DSXHE04

      Disconnect the connectors from the rear airbag sensor LH and side airbag sensor LH.

      Table 12. Text in Illustration
      *1 Side Airbag Sensor LH *2 Rear Airbag Sensor LH
      *3 Connector E *4 Connector B
      *5 Service Wire - -
      *a

      Rear view of wire harness connector

      (to Side Airbag Sensor LH)

      		 *b

      Rear view of wire harness connector

      (to Rear Airbag Sensor LH)

    2. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      R4-1 (BCL+) - Body ground Ignition switch ON Below 1 V
      R4-2 (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. Using a service wire, connect terminals 2 (BCL+) and 1 (BCL-) of connector E.

      Note:

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R4-1 (BCL+) - R4-2 (BCL-) Always Below 1 Ω

    8. Disconnect the service wire from connector E.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R4-1 (BCL+) - R4-2 (BCL-) Always 1 MΩ or higher
      R4-1 (BCL+) - Body ground Always 1 MΩ or higher
      R4-2 (BCL-) - Body ground Always 1 MΩ or higher

  12. Click here

    CHECK SIDE AIRBAG SENSOR LH


    1. A01DPPJE15

      Connect the connector to the rear airbag sensor LH.

    2. Interchange the side airbag sensor LH with RH and connect the connectors to them.

    3. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

    4. Turn the ignition switch to ON, and wait for at least 60 seconds.

    5. Clear the DTCs stored in memory (Click here).

    6. Turn the ignition switch off.

    7. Turn the ignition switch to ON, and wait for at least 60 seconds.

    8. Check for DTCs (Click here).

      Table 13. Result
      Result Proceed to
      DTC B1692 and B1697 are not output A
      DTC B1692 is output B
      DTC B1697 is output C
      Tip:

      Codes other than DTC B1692 and B1697 may be output at this time, but they are not related to this check.

      Table 14. Text in Illustration
      *1 Side Airbag Sensor RH
      *2 Rear Airbag Sensor LH

    9. Turn the ignition switch off.

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

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


  13. Click here

    CHECK NO. 2 FLOOR WIRE (REAR AIRBAG SENSOR LH - FRONT DOOR WIRE LH)


    1. A01DMV6E05

      Disconnect the No. 2 floor wire connector from the front door wire LH.

      Table 15. Text in Illustration
      *1 Side Airbag Sensor LH *2 Rear Airbag Sensor LH
      *3 Front Door Wire LH *4 No. 2 Floor Wire
      *5 Connector C *6 Connector B
      *7 Service Wire - -
      *a

      Front view of wire harness connector

      (to Front Door Wire LH)

      		 *b

      Rear view of wire harness connector

      (to Rear Airbag Sensor LH)

    2. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      R4-1 (BCL+) - Body ground Ignition switch ON Below 1 V
      R4-2 (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. Using a service wire, connect terminals 2 (BCL+) and 1 (BCL-) of connector C.

      Note:

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R4-1 (BCL+) - R4-2 (BCL-) Always Below 1 Ω

    8. Disconnect the service wire from connector C.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R4-1 (BCL+) - R4-2 (BCL-) Always 1 MΩ or higher
      R4-1 (BCL+) - Body ground Always 1 MΩ or higher
      R4-2 (BCL-) - Body ground Always 1 MΩ or higher

  14. Click here

    USE SIMULATION METHOD TO CHECKClick here

  15. Click here

    CONNECT CONNECTORS PROPERLY

  16. Click here

    REPLACE HARNESS AND CONNECTOR

  17. Click here

    USE SIMULATION METHOD TO CHECKClick here

  18. Click here

    REPLACE REAR AIRBAG SENSOR RH (for 3 Door)Click here

  19. Click here

    REPLACE REAR AIRBAG SENSOR RH (for 5 Door)Click here

  20. Click here

    USE SIMULATION METHOD TO CHECKClick here

  21. Click here

    REPLACE SIDE AIRBAG SENSOR ASSEMBLY RHClick here

  22. Click here

    REPLACE CENTER AIRBAG SENSOR ASSEMBLYClick here

  23. Click here

    REPLACE FLOOR WIRE

  24. Click here

    REPLACE FRONT DOOR WIRE RH

  25. Click here

    CONNECT CONNECTORS PROPERLY

  26. Click here

    REPLACE HARNESS AND CONNECTOR

  27. Click here

    USE SIMULATION METHOD TO CHECKClick here

  28. Click here

    REPLACE REAR AIRBAG SENSOR LH (for 3 Door)Click here

  29. Click here

    REPLACE REAR AIRBAG SENSOR LH (for 5 Door)Click here

  30. Click here

    USE SIMULATION METHOD TO CHECKClick here

  31. Click here

    REPLACE SIDE AIRBAG SENSOR ASSEMBLY LHClick here

  32. Click here

    REPLACE CENTER AIRBAG SENSOR ASSEMBLYClick here

  33. Click here

    REPLACE NO. 2 FLOOR WIRE

  34. Click here

    REPLACE FRONT DOOR WIRE LH