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Home >> Toyota >> 2015 >> Yaris LE, 4D Hatchback >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System - (Diagnostic Codes (B1000/31- B1655/37)) >> AIRBAG SYSTEM (for Hatchback) >> DTC B1623/81: Side Airbag Sensor Assembly RH Initialization Incomplete [07/2014 - ] >> Procedure

DTC B1623/81: Side Airbag Sensor Assembly RH Initialization Incomplete [07/2014 - ]: Procedure

  1. CHECK HISTORY DTC 
    1. Turn the ignition switch to ON, and wait for at least 60 seconds.
    2. Check for history DTCs. Refer to DTC CHECK / CLEAR [07/2014 - ] .

      Result

      History DTC B1622/81 is not output.

      HINT: 

      Codes other than history DTCs B1622/81 may be output at this time, but they are not related to this check.

    NG → See step   17 

    OK: Go to next step 

  2. CHECK CONNECTORS 
    1. Turn the ignition switch off.
    2. Disconnect the cable from the negative (-) battery terminal.
      WARNING:

      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, side airbag sensor assembly RH and No. 2 side airbag sensor assembly RH.

      OK

      The connectors are properly connected.

      HINT: 

      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, side airbag sensor assembly RH and No. 2 side airbag sensor assembly RH.
    5. Check that the terminals of connectors are not damaged.

      OK

      The terminals are not deformed or damaged.

    NG → REPLACE FLOOR WIRE 

    OK: Go to next step 

  3. CHECK FLOOR WIRE (OPEN) 
    1. Using the service wire, connect terminals 17 (BBR+) and 18 (BBR-) of connector B.
      GTY344002Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Side Airbag Sensor Assembly RH *2 Airbag Sensor Assembly
      *3 Floor Wire *4 Connector B
      *5 Connector C *6 Service Wire
      *a Front view of wire harness connector
      (to Airbag Sensor Assembly)      		 *b Front view of wire harness connector
      (to Side Airbag Sensor Assembly RH)
      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
      J74-4 (BBR+) - J74-3 (BBR-) Always Below 1 Ω

    NG → REPLACE FLOOR WIRE 

    OK: Go to next step 

  4. CHECK FLOOR WIRE (SHORT) 
    1. Disconnect the service wire from connector B.
      GTY336589Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J74-4 (BBR+) - J74-3 (BBR-) Always 1 MΩ or higher
      TEXT IN ILLUSTRATION

      *1 Side Airbag Sensor Assembly RH
      *2 Airbag Sensor Assembly
      *3 Floor Wire
      *4 Connector C
      *a Front view of wire harness connector
      (to Side Airbag Sensor Assembly RH)

    NG → REPLACE FLOOR WIRE 

    OK: Go to next step 

  5. CHECK FLOOR WIRE (SHORT TO B+) 
    1. Connect the cable to the negative (-) battery terminal.
      GTY336589Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      J74-4 (BBR+) - Body ground Ignition switch ON Below 1 V
      J74-3 (BBR-) - Body ground Ignition switch ON Below 1 V
      TEXT IN ILLUSTRATION

      *1 Side Airbag Sensor Assembly RH
      *2 Airbag Sensor Assembly
      *3 Floor Wire
      *4 Connector C
      *a Front view of wire harness connector
      (to Side Airbag Sensor Assembly RH)

    NG → REPLACE FLOOR WIRE 

    OK: Go to next step 

  6. CHECK FLOOR WIRE (SHORT TO GROUND) 
    1. Turn the ignition switch off.
      GTY336589Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the cable from the negative (-) battery terminal.
      WARNING:

      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
      J74-4 (BBR+) - Body ground Always 1 MΩ or higher
      J74-3 (BBR-) - Body ground Always 1 MΩ or higher
      TEXT IN ILLUSTRATION

      *1 Side Airbag Sensor Assembly RH
      *2 Airbag Sensor Assembly
      *3 Floor Wire
      *4 Connector C
      *a Front view of wire harness connector
      (to Side Airbag Sensor Assembly RH)

    NG → REPLACE FLOOR WIRE 

    OK: Go to next step 

  7. CHECK FLOOR WIRE (OPEN) 
    1. Using the service wire, connect terminals 4 (BCR+) and 3 (BCR-) of connector C.
      GTY326825Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 No. 2 Side Airbag Sensor Assembly RH *2 Side Airbag Sensor Assembly RH
      *3 Floor Wire *4 Connector B
      *5 Connector C *6 Service Wire
      *a Front view of wire harness connector
      (to Side Airbag Sensor Assembly RH)      		 *b Front view of wire harness connector
      (to No. 2 Side Airbag Sensor Assembly RH)
      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
      J74-1 (BCR+) - J74-2 (BCR-) Always Below 1 Ω

    NG → REPLACE FLOOR WIRE 

    OK: Go to next step 

  8. CHECK FLOOR WIRE (SHORT) 
    1. Disconnect the service wire from connector C.
      GTY329136Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J74-1 (BCR+) - J74-2 (BCR-) Always 1 MΩ or higher
      TEXT IN ILLUSTRATION

      *1 No. 2 Side Airbag Sensor Assembly RH
      *2 Side Airbag Sensor Assembly RH
      *3 Floor Wire
      *4 Connector B
      *a Front view of wire harness connector
      (to Side Airbag Sensor Assembly RH)

    NG → REPLACE FLOOR WIRE 

    OK: Go to next step 

  9. CHECK FLOOR WIRE (SHORT TO B+) 
    1. Connect the cable to the negative (-) battery terminal.
      GTY329136Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      J74-1 (BCR+) - Body ground Ignition switch ON Below 1 V
      J74-2 (BCR-) - Body ground Ignition switch ON Below 1 V
      TEXT IN ILLUSTRATION

      *1 No. 2 Side Airbag Sensor Assembly RH
      *2 Side Airbag Sensor Assembly RH
      *3 Floor Wire
      *4 Connector B
      *a Front view of wire harness connector
      (to Side Airbag Sensor Assembly RH)

    NG → REPLACE FLOOR WIRE 

    OK: Go to next step 

  10. CHECK FLOOR WIRE (SHORT TO GROUND) 
    1. Turn the ignition switch off.
      GTY329136Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the cable from the negative (-) battery terminal.
      WARNING:

      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
      J74-1 (BCR+) - Body ground Always 1 MΩ or higher
      J74-2 (BCR-) - Body ground Always 1 MΩ or higher
      TEXT IN ILLUSTRATION

      *1 No. 2 Side Airbag Sensor Assembly RH
      *2 Side Airbag Sensor Assembly RH
      *3 Floor Wire
      *4 Connector B
      *a Front view of wire harness connector
      (to Side Airbag Sensor Assembly RH)

    NG → REPLACE FLOOR WIRE 

    OK: Go to next step 

  11. CHECK SIDE AIRBAG SENSOR ASSEMBLY RH 
    1. Connect the connectors to the No. 2 side airbag sensor assembly RH and airbag sensor assembly.
      GTY328150Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Interchange the side airbag sensor assembly RH with the side airbag sensor assembly LH and connect the connectors to them.
    3. Connect the cable to the negative (-) battery terminal.
    4. Turn the ignition switch to ON, and wait for at least 60 seconds.
    5. Clear the DTCs stored in the memory. Refer to DTC CHECK / CLEAR [07/2014 - ] .
    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 [07/2014 - ] .
      RESULT

      Result Proceed to
      DTC B1623/81 is output. A
      DTC B1628/82 is output.
      (for 5 Door)      		 B
      DTC B1628/82 is output.
      (for 3 Door)      		 C
      DTC B1623/81 or B1628/82 is not output. D
      TEXT IN ILLUSTRATION

      *1 Side Airbag Sensor Assembly LH
      *2 Airbag Sensor Assembly

      HINT: 

      Codes other than DTCs B1623/81 and B1628/82 may be output at this time, but they are not related to this check.

    9. Turn the ignition switch off.
    10. Disconnect the cable to the negative (-) battery terminal.
      WARNING:

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

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

    B → See step   14 

    C → See step   18 

    D → See step   13 

    A: Go to next step 

  12. CHECK NO. 2 SIDE AIRBAG SENSOR ASSEMBLY RH 
    1. Interchange the No. 2 side airbag sensor assembly RH with the No. 2 side airbag sensor assembly LH and connect the connectors to them.
      GTY225600Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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. Refer to DTC CHECK / CLEAR [07/2014 - ] .
    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 [07/2014 - ] .
      RESULT

      Result Proceed to
      DTC B1623/81 or B1628/82 is not output. A
      DTC B1623/81 is output. B
      DTC B1628/82 is output.
      (for 5 Door)      		 C
      DTC B1628/82 is output.
      (for 3 Door)      		 D
      TEXT IN ILLUSTRATION

      *1 No. 2 Side Airbag Sensor Assembly LH
      *2 Side Airbag Sensor Assembly RH

      HINT: 

      Codes other than DTCs B1623/81 and B1628/82 may be output at this time, but they are not related to this check.

    8. Turn the ignition switch off.
    9. Disconnect the cable from the negative (-) battery terminal.
      WARNING:

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

    10. Return the No. 2 side airbag sensor assembly RH and the No. 2 side airbag sensor assembly LH to their original positions and connect the connectors to them.

    B → See step   15 

    C → See step   16 

    D → See step   19 

    A → See step   13 

  13. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2014 - ] 
  14. REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH. Refer to  REMOVAL [07/2014 - ] 
  15. REPLACE AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL [07/2014 - ] 
  16. REPLACE NO. 2 SIDE AIRBAG SENSOR ASSEMBLY RH. Refer to  REMOVAL [07/2014 - ] 
  17. INSPECTION PROCEDURE RELEVANT TO OUTPUT DTC. Refer to  DIAGNOSTIC TROUBLE CODE CHART [07/2014 - ] 
  18. REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH. Refer to  REMOVAL [07/2014 - ] 
  19. REPLACE NO. 2 SIDE AIRBAG SENSOR ASSEMBLY RH. Refer to  REMOVAL [07/2014 - ] 
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