LEMON Manuals: Even more car manuals for everyone
Home >> Scion >> 2012 >> tC Automatic Trans >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (Diagnostic Codes & Symptom Tests) >> Airbag System >> DTC B1692/81: Lost Communication with Door Side Airbag Sensor RH; DTC B1697/82: Lost Communication with Door Side Airbag Sensor LH >> Procedure

DTC B1692/81: Lost Communication with Door Side Airbag Sensor RH; DTC B1697/82: Lost Communication with Door Side Airbag Sensor LH: Procedure

  1. CHECK FOR DTC 
    1. Turn the ignition switch to ON.
    2. Clear the DTCs stored in memory. Refer to DTC CHECK / CLEAR .
    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 .
      RESULT

      Result Proceed to
      DTC B1692 and B1697 are not output A
      DTC B1697 is output B
      DTC B1692 is output C

      HINT: 

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

    A → See step   14 

    B → See step   8 

    C: Go to next step 

  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 rear airbag sensor RH and door side airbag sensor RH.

      OK

      The connectors are properly connected.

    NG → CONNECT CONNECTORS PROPERLY 

    OK: Go to next step 

  3. CHECK CONNECTORS 
    1. Disconnect the connectors from the rear airbag sensor RH and door side airbag sensor RH.
    2. Check that the connectors (on the rear airbag sensor RH side and door side airbag sensor RH side) are not damaged.

      OK

      The connectors are not deformed or damaged.

      Fig 1: Checking Connectors
      GTY224988Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Door Side Airbag Sensor RH
      *2 Rear Airbag Sensor RH

    NG → REPLACE HARNESS AND CONNECTOR 

    OK: Go to next step 

  4. CHECK REAR AIRBAG SENSOR RH 
    1. Connect the connectors to the rear airbag sensor and door side airbag sensor RH.
      Fig 2: Identifying Side Airbag Sensor RH
      GTY213957Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Interchange the rear airbag sensor RH with LH 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. Refer to DTC CHECK / CLEAR .
    6. Turn the ignition switch off.
    7. Turn the ignition switch to ON, and wait for at least 60 seconds.
    8. Check for DTCs. Refer to DTC CHECK / CLEAR .
      RESULT

      Result Proceed to
      DTC B1692 and B1697 are not output A
      DTC B1697 is output B
      DTC B1692 is output C

      HINT: 

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

      TEXT IN ILLUSTRATION

      *1 Door 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 rear airbag sensor RH and LH to their original positions and connect the connectors to them.

    A → See step   15 

    B → See step   17 

    C: Go to next step 

  5. CHECK DOOR SIDE AIRBAG SENSOR RH CIRCUIT 
    1. Disconnect the connectors from the door side airbag sensor RH and rear airbag sensor RH.
      Fig 3: Checking Door Side Airbag Sensor RH Circuit
      GTY313712Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Door 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 Door 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
      J5-1 (BDR+) - Body ground Ignition switch ON Below 1 V
      J5-2 (BDR-) - 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 (BDR+) and 1 (BDR-) 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
      J5-1 (BDR+) - J5-2 (BDR-) 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
      J5-1 (BDR+) - J5-2 (BDR-) Always 1 MΩ or higher
      J5-1 (BDR+) - Body ground Always 1 MΩ or higher
      J5-2 (BDR-) - Body ground Always 1 MΩ or higher

    NG → See step   7 

    OK: Go to next step 

  6. CHECK DOOR SIDE AIRBAG SENSOR RH 
    1. Connect the connector to the rear airbag sensor RH.
      Fig 4: Identifying Side Airbag Sensor RH
      GTY213957Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Interchange the door side airbag sensor RH with LH 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. Refer to DTC CHECK / CLEAR .
    6. Turn the ignition switch off.
    7. Turn the ignition switch to ON, and wait for at least 60 seconds.
    8. Check for DTCs. Refer to DTC CHECK / CLEAR .
      RESULT

      Result Proceed to
      DTC B1692 and B1697 are not output A
      DTC B1697 is output B
      DTC B1692 is output C

      HINT: 

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

      TEXT IN ILLUSTRATION

      *1 Door 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 door side airbag sensor RH and LH to their original positions and connect the connectors to them.

    A → See step   25 

    B → See step   16 

    C → See step   22 

  7. CHECK NO. 2 FLOOR WIRE (REAR AIRBAG SENSOR RH - FRONT DOOR WIRE RH) 
    1. Disconnect the floor wire connector from the front door wire RH.
      Fig 5: Checking No. 2 Floor Wire (Rear Airbag Sensor RH - Front Door Wire RH)
      GTY313677Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Door Side Airbag Sensor RH *2 Rear Airbag Sensor RH
      *3 Front Door Wire RH *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 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
      J5-1 (BDR+) - Body ground Ignition switch ON Below 1 V
      J5-2 (BDR-) - 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 (BDR+) and 1 (BDR-) 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
      J5-1 (BDR+) - J5-2 (BDR-) 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
      J5-1 (BDR+) - J5-2 (BDR-) Always 1 MΩ or higher
      J5-1 (BDR+) - Body ground Always 1 MΩ or higher
      J5-2 (BDR-) - Body ground Always 1 MΩ or higher

    NG → REPLACE NO. 2 FLOOR WIRE 

    OK → See step   23 

  8. 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 rear airbag sensor LH and door side airbag sensor LH.

      OK

      The connectors are properly connected.

    NG → CONNECT CONNECTORS PROPERLY 

    OK: Go to next step 

  9. CHECK CONNECTORS 
    1. Disconnect the connectors from the rear airbag sensor LH and door side airbag sensor LH.
    2. Check that the connectors (on the rear airbag sensor LH side and door side airbag sensor LH side) are not damaged.

      OK

      The connectors are not deformed or damaged.

      Fig 6: Checking Connectors
      GTY224988Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Door Side Airbag Sensor LH
      *2 Rear Airbag Sensor LH

    NG → REPLACE HARNESS AND CONNECTOR 

    OK: Go to next step 

  10. CHECK REAR AIRBAG SENSOR LH 
    1. Connect the connector to the rear airbag sensor and door side airbag sensor LH.
      Fig 7: Identifying Side Airbag Sensor RH
      GTY213957Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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. Refer to DTC CHECK / CLEAR .
    6. Turn the ignition switch off.
    7. Turn the ignition switch to ON, and wait for at least 60 seconds.
    8. Check for DTCs. Refer to DTC CHECK / CLEAR .
      RESULT

      Result Proceed to
      DTC B1692 and B1697 are not output A
      DTC B1692 is output B
      DTC B1697 is output C

      HINT: 

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

      TEXT IN ILLUSTRATION

      *1 Door 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 rear airbag sensor RH and LH to their original positions and connect the connectors to them.

    A → See step   19 

    B → See step   18 

    C: Go to next step 

  11. CHECK DOOR SIDE AIRBAG SENSOR LH CIRCUIT 
    1. Disconnect the connectors from the rear airbag sensor LH and door side airbag sensor LH.
      Fig 8: Checking Door Side Airbag Sensor (LH) Circuit
      GTY314393Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Door 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 Door 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
      H7-1 (BDL+) - Body ground Ignition switch ON Below 1 V
      H7-2 (BDL-) - 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 (BDL+) and 1 (BDL-) 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
      H7-1 (BDL+) - H7-2 (BDL-) 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
      H7-1 (BDL+) - H7-2 (BDL-) Always 1 MΩ or higher
      H7-1 (BDL+) - Body ground Always 1 MΩ or higher
      H7-2 (BDL-) - Body ground Always 1 MΩ or higher

    NG → See step   13 

    OK: Go to next step 

  12. CHECK DOOR SIDE AIRBAG SENSOR LH 
    1. Connect the connector to the rear airbag sensor LH.
      Fig 9: Identifying Side Airbag Sensor RH
      GTY213957Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Interchange the door 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. Refer to DTC CHECK / CLEAR .
    6. Turn the ignition switch off.
    7. Turn the ignition switch to ON, and wait for at least 60 seconds.
    8. Check for DTCs. Refer to DTC CHECK / CLEAR .
      RESULT

      Result Proceed to
      DTC B1692 and B1697 are not output A
      DTC B1692 is output B
      DTC B1697 is output C

      HINT: 

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

      TEXT IN ILLUSTRATION

      *1 Door 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 door side airbag sensor RH and LH to their original positions and connect the connectors to them.

    A → See step   26 

    B → See step   20 

    C → See step   21 

  13. CHECK FLOOR WIRE (REAR AIRBAG SENSOR LH - FRONT DOOR WIRE LH) 
    1. Disconnect the No. 2 floor wire connector from the front door wire LH.
      Fig 10: Checking Floor Wire (Rear Airbag Sensor LH - Front Door Wire LH)
      GTY313704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Door Side Airbag Sensor LH *2 Rear Airbag Sensor LH
      *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 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
      H7-1 (BDL+) - Body ground Ignition switch ON Below 1 V
      H7-2 (BDL-) - 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 (BDL+) and 1 (BDL-) 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
      H7-1 (BDL+) - H7-2 (BDL-) 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
      H7-1 (BDL+) - H7-2 (BDL-) Always 1 MΩ or higher
      H7-1 (BDL+) - Body ground Always 1 MΩ or higher
      H7-2 (BDL-) - Body ground Always 1 MΩ or higher

    NG → REPLACE FLOOR WIRE 

    OK → See step   24 

  14. USE SIMULATION METHOD TO CHECK. Refer to  DIAGNOSIS SYSTEM 
  15. USE SIMULATION METHOD TO CHECK. Refer to  DIAGNOSIS SYSTEM 
  16. REPLACE DOOR SIDE AIRBAG SENSOR RH. Refer to  REMOVAL 
  17. REPLACE REAR AIRBAG SENSOR RH. Refer to  REMOVAL 
  18. REPLACE REAR AIRBAG SENSOR LH. Refer to  REMOVAL 
  19. USE SIMULATION METHOD TO CHECK. Refer to  DIAGNOSIS SYSTEM 
  20. REPLACE DOOR SIDE AIRBAG SENSOR LH. Refer to  REMOVAL 
  21. REPLACE CENTER AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL 
  22. REPLACE CENTER AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL 
  23. REPLACE FRONT DOOR WIRE RH. Refer to  DISASSEMBLY 
  24. REPLACE FRONT DOOR WIRE LH. Refer to  DISASSEMBLY 
  25. USE SIMULATION METHOD TO CHECK. Refer to  DIAGNOSIS SYSTEM 
  26. USE SIMULATION METHOD TO CHECK. Refer to  DIAGNOSIS SYSTEM 
scientia non olet · About LEMON Manuals