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Home >> Toyota >> 2014 >> Avalon XLE >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (Diagnostic Codes & Symptom Tests) (Except Hybrid) >> Airbag System >> DTC B1630/23: Rear Airbag Sensor RH Circuit Malfunction [10/2013 - ] >> Procedure

DTC B1630/23: Rear Airbag Sensor RH Circuit Malfunction [10/2013 - ]: Procedure

  1. CHECK CONNECTORS 
    1. Turn the engine 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 side airbag sensor assembly RH, side No. 2 airbag sensor assembly RH and door side airbag sensor RH. Also check that the connectors that link the No. 2 floor wire and front door wire RH are properly connected.

      OK

      The connectors are properly connected.

      HINT: 

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

    4. Disconnect the connectors from the side airbag sensor assembly RH, side No. 2 airbag sensor assembly RH and door side airbag sensor RH. Also disconnect the connectors that link the No. 2 floor wire and front door wire RH.
    5. Check that the terminals of the connectors are not damaged.

      OK

      The terminals are not deformed or damaged.

    NG → REPLACE WIRE HARNESS 

    OK: Go to next step 

  2. CHECK NO. 2 FLOOR WIRE (OPEN) 
    1. Using a service wire, connect terminals 4 (BCR+) and 3 (BCR-) of connector C.
      GTY380185Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      K6-1 (BCR+) - K6-2 (BCR-) Always Below 1 Ω
    3. Disconnect the service wire from connector C.
      TEXT IN ILLUSTRATION

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

    NG → REPLACE NO. 2 FLOOR WIRE 

    OK: Go to next step 

  3. CHECK NO. 2 FLOOR WIRE (SHORT) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY367695Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      K6-1 (BCR+) - K6-2 (BCR-) Always 1 MΩ or higher
      TEXT IN ILLUSTRATION

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

    NG → REPLACE NO. 2 FLOOR WIRE 

    OK: Go to next step 

  4. CHECK NO. 2 FLOOR WIRE (SHORT TO B+) 
    1. Connect the cable to the negative (-) battery terminal.
      GTY367695Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the engine switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      K6-1 (BCR+) - Body ground Engine switch on (IG) Below 1 V
      K6-2 (BCR-) - Body ground Engine switch on (IG) Below 1 V
    4. Turn the engine switch off.
    5. 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.

      TEXT IN ILLUSTRATION

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

    NG → REPLACE NO. 2 FLOOR WIRE 

    OK: Go to next step 

  5. CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY367695Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      K6-1 (BCR+) - Body ground Always 1 MΩ or higher
      K6-2 (BCR-) - Body ground Always 1 MΩ or higher
      TEXT IN ILLUSTRATION

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

    NG → REPLACE NO. 2 FLOOR WIRE 

    OK: Go to next step 

  6. CHECK WIRE HARNESS (OPEN) 
    1. Connect the connectors that link the No. 2 floor wire and front door wire RH.
      GTY374227Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. 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 the wire.

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      K8-1 (BDR+) - K8-2 (BDR-) Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *1 Door Side Airbag Sensor RH
      *2 Side No. 2 Airbag Sensor Assembly RH
      *3 Service Wire
      *a Front view of wire harness connector
      (to Side No. 2 Airbag Sensor Assembly RH)
      *b Front view of wire harness connector
      (to Door Side Airbag Sensor RH)

    NG → See step   13 

    OK: Go to next step 

  7. CHECK WIRE HARNESS (SHORT) 
    1. Disconnect the service wire from connector E.
      GTY378696Courtesy 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
      K8-1 (BDR+) - K8-2 (BDR-) Always 1 MΩ or higher
      TEXT IN ILLUSTRATION

      *1 Door Side Airbag Sensor RH
      *2 Side No. 2 Airbag Sensor Assembly RH
      *a Front view of wire harness connector
      (to Side No. 2 Airbag Sensor Assembly RH)

    NG → See step   14 

    OK: Go to next step 

  8. CHECK WIRE HARNESS (SHORT TO B+) 
    1. Connect the cable to the negative (-) battery terminal.
      GTY378696Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the engine switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      K8-1 (BDR+) - Body ground Engine switch on (IG) Below 1 V
      K8-2 (BDR-) - Body ground Engine switch on (IG) Below 1 V
    4. Turn the engine switch off.
    5. 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.

      TEXT IN ILLUSTRATION

      *1 Door Side Airbag Sensor RH
      *2 Side No. 2 Airbag Sensor Assembly RH
      *a Front view of wire harness connector
      (to Side No. 2 Airbag Sensor Assembly RH)

    NG → See step   15 

    OK: Go to next step 

  9. CHECK WIRE HARNESS (SHORT TO GROUND) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY378696Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      K8-1 (BDR+) - Body ground Always 1 MΩ or higher
      K8-2 (BDR-) - Body ground Always 1 MΩ or higher
      TEXT IN ILLUSTRATION

      *1 Door Side Airbag Sensor RH
      *2 Side No. 2 Airbag Sensor Assembly RH
      *a Front view of wire harness connector
      (to Side No. 2 Airbag Sensor Assembly RH)

    NG → See step   16 

    OK: Go to next step 

  10. CHECK SIDE NO. 2 AIRBAG SENSOR ASSEMBLY RH 
    1. Connect the connectors to the side airbag sensor assembly RH and door side airbag sensor RH.
      GTY316477Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Interchange the side No. 2 airbag sensor assembly RH with LH and connect the connectors.
    3. Connect the cable to the negative (-) battery terminal.
    4. Clear the DTCs stored in memory. Refer to DTC CHECK / CLEAR [10/2013 - ] .
    5. Turn the engine switch off.
    6. Turn the engine switch on (IG), and wait for at least 60 seconds.
    7. Check for DTCs. Refer to DTC CHECK / CLEAR [10/2013 - ] .

      Result

      Result Proceed to
      DTC B1630/23 is output. A
      DTC B1635/24 is output. B
      DTCs B1630/23 and B1635/24 are not output. C

      HINT: 

      Codes other than DTCs B1630/23 and B1635/24 may be output at this time, but they are not related to this check.

    8. Turn the engine 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 side No. 2 airbag sensor assembly RH and LH to their original positions and connect the connectors.
      TEXT IN ILLUSTRATION

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

    B → See step   18 

    C → See step   17 

    A: Go to next step 

  11. CHECK SIDE AIRBAG SENSOR ASSEMBLY RH 
    1. Interchange the side airbag sensor assembly RH with LH and connect the connectors.
      GTY321367Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the cable to the negative (-) battery terminal.
    3. Clear the DTCs stored in memory. Refer to DTC CHECK / CLEAR [10/2013 - ] .
    4. Turn the engine switch off.
    5. Turn the engine switch on (IG), and wait for at least 60 seconds.
    6. Check for DTCs. Refer to DTC CHECK / CLEAR [10/2013 - ] .

      Result

      Result Proceed to
      DTC B1630/23 is output. A
      DTC B1635/24 is output. B
      DTCs B1630/23 and B1635/24 are not output. C

      HINT: 

      Codes other than DTCs B1630/23 and B1635/24 may be output at this time, but they are not related to this check.

    7. Turn the engine switch off.
    8. 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.

    9. Return the side airbag sensor assembly RH and LH to their original positions and connect the connectors.
      TEXT IN ILLUSTRATION

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

    B → See step   20 

    C → See step   17 

    A: Go to next step 

  12. CHECK DOOR SIDE AIRBAG SENSOR RH 
    1. Disconnect the connector from the door side airbag sensor RH.
      GTY383533Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the cable to the negative (-) battery terminal.
    3. Clear the DTCs stored in memory. Refer to DTC CHECK / CLEAR [10/2013 - ] .
    4. Turn the engine switch off.
    5. Turn the engine switch on (IG), and wait for at least 60 seconds.
    6. Check for DTCs. Refer to DTC CHECK / CLEAR [10/2013 - ] .

      OK

      DTC B1630/23 is not output.

      HINT: 

      Codes other than DTC B1630/23 may be output at this time, but they are not related to this check.

      TEXT IN ILLUSTRATION

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

    NG → See step   19 

    OK → See step   21 

  13. CHECK FRONT DOOR WIRE RH (OPEN) 
    1. Disconnect the front door wire RH connector from the No. 2 floor wire.
      GTY380561Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      The service wire has already been inserted into connector E.

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      FK1-1 (BDR+) - FK1-2 (BDR-) Always Below 1 Ω
    3. Disconnect the service wire from connector E.
      TEXT IN ILLUSTRATION

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

    NG → REPLACE FRONT DOOR WIRE RH 

    OK → REPLACE NO. 2 FLOOR WIRE 

  14. CHECK FRONT DOOR WIRE RH (SHORT) 
    1. Disconnect the front door wire RH connector from the No. 2 floor wire.
      GTY372175Courtesy 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
      FK1-1 (BDR+) - FK1-2 (BDR-) Always 1 MΩ or higher
      TEXT IN ILLUSTRATION

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

    NG → REPLACE FRONT DOOR WIRE RH 

    OK → REPLACE NO. 2 FLOOR WIRE 

  15. CHECK FRONT DOOR WIRE RH (SHORT TO B+) 
    1. Disconnect the front door wire RH connector from the No. 2 floor wire.
      GTY372175Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the cable to the negative (-) battery terminal.
    3. Turn the engine switch on (IG).
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      FK1-1 (BDR+) - Body ground Engine switch on (IG) Below 1 V
      FK1-2 (BDR-) - Body ground Engine switch on (IG) Below 1 V
      TEXT IN ILLUSTRATION

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

    NG → REPLACE FRONT DOOR WIRE RH 

    OK → REPLACE NO. 2 FLOOR WIRE 

  16. CHECK FRONT DOOR WIRE RH (SHORT TO GROUND) 
    1. Disconnect the front door wire RH connector from the No. 2 floor wire.
      GTY372175Courtesy 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
      FK1-1 (BDR+) - Body ground Always 1 MΩ or higher
      FK1-2 (BDR-) - Body ground Always 1 MΩ or higher
      TEXT IN ILLUSTRATION

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

    NG → REPLACE FRONT DOOR WIRE RH 

    OK → REPLACE NO. 2 FLOOR WIRE 

  17. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2013 - ] 
  18. REPLACE SIDE NO. 2 AIRBAG SENSOR ASSEMBLY RH. Refer to  REMOVAL [10/2013 - ] 
  19. REPLACE AIRBAG ECU ASSEMBLY. Refer to  REMOVAL [10/2013 - ] 
  20. REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH. Refer to  REMOVAL [10/2013 - ] 
  21. REPLACE DOOR SIDE AIRBAG SENSOR RH. Refer to  REMOVAL [10/2013 - ] 
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