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AIRBAG SYSTEM(w/o Curtain Shield Airbag), Diagnostic DTC:B1697/82, B1698/82

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DTC Code DTC Name
B1697/82 Lost Communication with Door Side Airbag Sensor LH
B1698/82 Door Side Airbag Sensor LH Initialization Incomplete
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DESCRIPTION

The circuit for the side collision sensor LH (to determine deployment of the front seat side airbag LH) is composed of the airbag sensor assembly and door side airbag sensor LH.

The door side airbag sensor LH detects impacts to the vehicle and sends signals to the airbag sensor assembly to determine if the airbag should be deployed.

DTC B1697/82 and B1698/82 are recorded when a malfunction is detected in the circuit for the side collision sensor LH (to determine deployment of the front seat side airbag LH).

DTC No. DTC Detection Condition Trouble Area

B1697/82

B1698/82

When one of following conditions is met:


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

  • Door side airbag sensor LH malfunction

  • Airbag sensor assembly malfunction

  • Floor wire

  • Front door wire LH

  • Door side airbag sensor LH

  • Airbag sensor assembly
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WIRING DIAGRAM

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PROCEDURE


  1. Click here

    CHECK CONNECTORS


    1. Turn the ignition switch off.

    2. Disconnect the cable from the negative (-) battery terminal.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

    3. Check that the connectors are properly connected to the airbag sensor assembly and door side airbag sensor LH.

      OK
      The connectors are properly connected
      Tip:

      If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.

    4. Disconnect the connectors from the airbag sensor assembly and door side airbag sensor LH.

    5. Check that the terminals of connectors are not damaged.

      OK
      The terminals are not deformed or damaged.

  2. Click here

    CHECK FLOOR WIRE AND FRONT DOOR WIRE LH (OPEN)


    1. w/ VSC:


      1. A01VJ2AE01

        Using a service wire, connect terminals 24 (BBL+) and 23 (BBL-) of connector B.

        Table 1. Text in Illustration
        *1 Door Side Airbag Sensor LH *2 Airbag Sensor Assembly
        *3 Front Door Wire LH *4 Floor Wire
        *5 Connector B *6 Connector E
        *7 Service Wire - -
        *a

        Front view of wire harness connector

        (to Airbag Sensor Assembly)

        		 *b

        Front view of wire harness connector

        (to Door Side Airbag Sensor LH)
        Note:

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

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        H16-1 (BDL-) - H16-2 (BDL+) Always Below 1 Ω

    2. w/o VSC:


      1. A01VI21E02

        Using a service wire, connect terminals 8 (BBL+) and 15 (BBL-) of connector B.

        Table 2. Text in Illustration
        *1 Door Side Airbag Sensor LH *2 Airbag Sensor Assembly
        *3 Front Door Wire LH *4 Floor Wire
        *5 Connector B *6 Connector E
        *7 Service Wire - -
        *a

        Front view of wire harness connector

        (to Airbag Sensor Assembly)

        		 *b

        Front view of wire harness connector

        (to Door Side Airbag Sensor LH)
        Note:

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

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        H16-1 (BDL-) - H16-2 (BDL+) Always Below 1 Ω

  3. Click here

    CHECK FLOOR WIRE AND FRONT DOOR WIRE LH (SHORT)


    1. A01VFJ5E01

      Disconnect the service wire from connector B.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H16-1 (BDL-) - H16-2 (BDL+) Always 1 MΩ or higher
      Table 3. Text in Illustration
      *A w/ VSC
      *B w/o VSC
      *1 Door Side Airbag Sensor LH
      *2 Airbag Sensor Assembly
      *3 Front Door Wire LH
      *4 Floor Wire
      *5 Connector E
      *a

      Front view of wire harness connector

      (to Door Side Airbag Sensor LH)

  4. Click here

    CHECK FLOOR WIRE AND FRONT DOOR WIRE LH (SHORT TO B+)


    1. A01VFJ5E01

      Connect the cable to the negative (-) battery terminal.

    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
      H16-1 (BDL-) - Body ground Ignition switch ON Below 1 V
      H16-2 (BDL+) - Body ground Ignition switch ON Below 1 V
      Table 4. Text in Illustration
      *A w/ VSC
      *B w/o VSC
      *1 Door Side Airbag Sensor LH
      *2 Airbag Sensor Assembly
      *3 Front Door Wire LH
      *4 Floor Wire
      *5 Connector E
      *a

      Front view of wire harness connector

      (to Door Side Airbag Sensor LH)

  5. Click here

    CHECK FLOOR WIRE AND FRONT DOOR WIRE LH (SHORT TO GROUND)


    1. A01VFJ5E01

      Turn the ignition switch off.

    2. Disconnect the cable from the negative (-) battery terminal.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H16-1 (BDL-) - Body ground Always 1 MΩ or higher
      H16-2 (BDL+) - Body ground Always 1 MΩ or higher
      Table 5. Text in Illustration
      *A w/ VSC
      *B w/o VSC
      *1 Door Side Airbag Sensor LH
      *2 Airbag Sensor Assembly
      *3 Front Door Wire LH
      *4 Floor Wire
      *5 Connector E
      *a

      Front view of wire harness connector

      (to Door Side Airbag Sensor LH)

  6. Click here

    CHECK DOOR SIDE AIRBAG SENSOR LH


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

    2. Connect the cable to the negative (-) battery terminal.

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

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

    5. Turn the ignition switch off.

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

    7. Check for DTCs (Click here).

      Table 6. Result
      Result Proceed to
      DTCs B1692/81, B1693/81, B1697/82 and B1698/82 are not output. A
      DTC B1692/81 or B1693/81 is output. B
      DTC B1697/82 or B1698/82 is output. C
      Table 7. Text in Illustration
      *A w/ VSC
      *B w/o VSC
      *1 Door Side Airbag Sensor RH
      *2 Airbag Sensor Assembly
      Tip:

      Codes other than DTCs B1692/81, B1693/81, B1697/82 and B1698/82 may be output at this time, but they are not related to this check.

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


  7. Click here

    CHECK FLOOR WIRE (OPEN)


    1. A01VFERE02

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

      Table 8. Text in Illustration
      *A w/ VSC *B w/o VSC
      *1 Door Side Airbag Sensor LH *2 Airbag Sensor Assembly
      *3 Front Door Wire LH *4 Floor Wire
      *5 Connector C *6 Connector B
      *7 Service Wire - -
      *a

      Front view of wire harness connector

      (to Front Door Wire LH)

      		 *b

      Front view of wire harness connector

      (to Airbag Sensor Assembly)
      Tip:

      The service wire has already been inserted into connector B.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      HK2-1 (BDL+) - HK2-2 (BDL-) Always Below 1 Ω

    • OK

      REPLACE FRONT DOOR WIRE LH

    • NG

      REPLACE FLOOR WIRE

  8. Click here

    CHECK FLOOR WIRE (SHORT)


    1. A01VJW7E02

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      HK2-1 (BDL+) - HK2-2 (BDL-) Always 1 MΩ or higher
      Table 9. Text in Illustration
      *A w/ VSC
      *B w/o VSC
      *1 Door Side Airbag Sensor LH
      *2 Airbag Sensor Assembly
      *3 Front Door Wire LH
      *4 Floor Wire
      *5 Connector C
      *a

      Front view of wire harness connector

      (to Front Door Wire LH)

    • OK

      REPLACE FRONT DOOR WIRE LH

    • NG

      REPLACE FLOOR WIRE

  9. Click here

    CHECK FLOOR WIRE (SHORT TO B+)


    1. A01VJW7E02

      Turn the ignition switch off.

    2. Disconnect the cable from the negative (-) battery terminal.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

    3. Disconnect the front door wire LH connector from the floor wire.

    4. Connect the cable to the negative (-) battery terminal.

    5. Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      HK2-1 (BDL+) - Body ground Ignition switch ON Below 1 V
      HK2-2 (BDL-) - Body ground Ignition switch ON Below 1 V
      Table 10. Text in Illustration
      *A w/ VSC
      *B w/o VSC
      *1 Door Side Airbag Sensor LH
      *2 Airbag Sensor Assembly
      *3 Front Door Wire LH
      *4 Floor Wire
      *5 Connector C
      *a

      Front view of wire harness connector

      (to Front Door Wire LH)

    • OK

      REPLACE FRONT DOOR WIRE LH

    • NG

      REPLACE FLOOR WIRE

  10. Click here

    CHECK FLOOR WIRE (SHORT TO GROUND)


    1. A01VJW7E02

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

      Turn the ignition switch off.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      HK2-1 (BDL+) - Body ground Always 1 MΩ or higher
      HK2-2 (BDL-) - Body ground Always 1 MΩ or higher
      Table 11. Text in Illustration
      *A w/ VSC
      *B w/o VSC
      *1 Door Side Airbag Sensor LH
      *2 Airbag Sensor Assembly
      *3 Front Door Wire LH
      *4 Floor Wire
      *5 Connector C
      *a

      Front view of wire harness connector

      (to Front Door Wire LH)

    • OK

      REPLACE FRONT DOOR WIRE LH

    • NG

      REPLACE FLOOR WIRE