DTC    B1633/81    Rear Airbag Sensor Assembly RH Initialization Incomplete


DESCRIPTION

The side collision sensor RH circuit (to determine deployment of the front seat side airbag assembly RH and curtain shield airbag assembly RH) is composed of the airbag sensor assembly, side airbag sensor assembly RH, door side airbag sensor RH and No. 2 side airbag sensor assembly RH.
The side airbag sensor assembly RH, door side airbag sensor RH and No. 2 side airbag sensor assembly RH detect impacts to the vehicle and send signals to the airbag sensor assembly to determine if the airbag should be deployed.
This DTC is stored when a malfunction is detected for the side collision sensor RH circuit (to determine deployment of the front seat side airbag assembly RH and curtain shield airbag assembly RH).

DTC No.
DTC Detection Condition
Trouble Area
B1633/81
  1. 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 side collision sensor RH circuit (to determine deployment of the front seat side airbag assembly RH and curtain shield airbag assembly RH).
  2. Side airbag sensor assembly RH malfunction
  3. Door side airbag sensor RH malfunction
  4. No. 2 side airbag sensor assembly RH malfunction
  5. Airbag sensor assembly malfunction
  1. Floor wire
  2. Front door wire RH
  3. Side airbag sensor assembly RH
  4. Door side airbag sensor RH
  5. No. 2 side airbag sensor assembly RH
  6. Airbag sensor assembly

WIRING DIAGRAM


C245265E01


INSPECTION PROCEDURE

1.CHECK HISTORY DTC
  1. Turn the ignition switch to ON, and wait for at least 60 seconds.

  1. Check for history DTCs (Click here).

    OK:
    History DTC B1632/81 or B1637/82 is not output.

    HINT:
    Codes other than history DTCs B1632/81 and B1637/82 may be output at this time, but they are not related to this check.


NG
INSPECTION PROCEDURE RELEVANT TO OUTPUT DTC (Click here)
OK


2.CHECK CONNECTORS
  1. Turn the ignition switch off.

  1. 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.
  1. Check that the connectors are properly connected to the airbag sensor assembly, door side airbag sensor 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.
  1. Disconnect the connectors from the airbag sensor assembly, door side airbag sensor RH and No. 2 side airbag sensor assembly RH.

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

    OK:
    The terminals are not deformed or damaged.


NG
REPLACE WIRE HARNESS
OK


3.CHECK FLOOR WIRE (OPEN)


  1. Using the service wire, connect terminals 4 (BCR+) and 3 (BCR-) of connector C.


    C245278E01


    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)

    NOTICE:
    Do not forcibly insert the service wire into the terminals of the connector when connecting.
  1. 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


4.CHECK FLOOR WIRE (SHORT)


    C240718E03
  1. Disconnect the service wire from connector C.

  1. 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


5.CHECK FLOOR WIRE (SHORT TO B+)


    C240718E03
  1. Connect the cable to the negative (-) battery terminal.

  1. Turn the ignition switch to ON.

  1. 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


6.CHECK FLOOR WIRE (SHORT TO GROUND)


    C240718E03
  1. Turn the ignition switch off.

  1. 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.
  1. 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


7.CHECK FLOOR WIRE AND FRONT DOOR WIRE RH (OPEN)


  1. Using the service wire, connect terminals 2 (BDR+) and 1 (BDR-) of connector E.


    C245314E01


    Text in Illustration 
    *1
    Door Side Airbag Sensor RH
    *2
    No. 2 Side Airbag Sensor Assembly RH
    *3
    Front Door Wire RH
    *4
    Floor Wire
    *5
    Connector B
    *6
    Connector E
    *7
    Service Wire
    -
    -
    *a
    Front view of wire harness connector
    (to No. 2 Side Airbag Sensor Assembly RH)
    *b
    Front view of wire harness connector
    (to Door Side Airbag Sensor RH)

    NOTICE:
    Do not forcibly insert the service wire into the terminals of the connector when connecting.
  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    J76-1 (BDR+) - J76-2 (BDR-)
    Always
    Below 1 Ω


NG
Go to step 14
OK


8.CHECK FLOOR WIRE AND FRONT DOOR WIRE RH (SHORT)


    C241240E03
  1. Disconnect the service wire from connector E.

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

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    J76-1 (BDR+) - J76-2 (BDR-)
    Always
    1 MΩ or higher
    Text in Illustration 
    *1
    Door Side Airbag Sensor RH
    *2
    No. 2 Side Airbag Sensor Assembly RH
    *3
    Front Door Wire RH
    *4
    Floor Wire
    *5
    Connector B
    *a
    Front view of wire harness connector
    (to No. 2 Side Airbag Sensor Assembly RH)


NG
Go to step 15
OK


9.CHECK FLOOR WIRE AND FRONT DOOR WIRE RH (SHORT TO B+)


    C241240E03
  1. Connect the cable to the negative (-) battery terminal.

  1. Turn the ignition switch to ON.

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

    Standard Voltage:
    Tester Connection
    Switch Condition
    Specified Condition
    J76-1 (BDR+) - Body ground
    Ignition switch ON
    Below 1 V
    J76-2 (BDR-) - Body ground
    Ignition switch ON
    Below 1 V
    Text in Illustration 
    *1
    Door Side Airbag Sensor RH
    *2
    No. 2 Side Airbag Sensor Assembly RH
    *3
    Front Door Wire RH
    *4
    Floor Wire
    *5
    Connector B
    *a
    Front view of wire harness connector
    (to No. 2 Side Airbag Sensor Assembly RH)


NG
Go to step 16
OK


10.CHECK FLOOR WIRE AND FRONT DOOR WIRE RH (SHORT TO GROUND)


    C241240E03
  1. Turn the ignition switch off.

  1. 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.
  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    J76-1 (BDR+) - Body ground
    Always
    1 MΩ or higher
    J76-2 (BDR-) - Body ground
    Always
    1 MΩ or higher
    Text in Illustration 
    *1
    Door Side Airbag Sensor RH
    *2
    No. 2 Side Airbag Sensor Assembly RH
    *3
    Front Door Wire RH
    *4
    Floor Wire
    *5
    Connector B
    *a
    Front view of wire harness connector
    (to No. 2 Side Airbag Sensor Assembly RH)


NG
Go to step 17
OK


11.CHECK SIDE AIRBAG SENSOR ASSEMBLY RH


    C235513E01
  1. Connect the connectors to the door side airbag sensor RH and airbag sensor assembly.

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

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

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

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

  1. Turn the ignition switch off.

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

  1. Check for DTCs (Click here).

    Result 
    Result
    Proceed to
    DTC B1633/81 is output.
    A
    DTC B1638/82 is output.
    (for 5 Door)
    B
    DTC B1638/82 is output.
    (for 3 Door)
    C
    DTC B1633/81 or B1638/82 is not output.
    D
    Text in Illustration 
    *1
    Side Airbag Sensor Assembly LH
    *2
    Airbag Sensor Assembly

    HINT:
    Codes other than DTCs B1633/81 and B1638/82 may be output at this time, but they are not related to this check.
  1. Turn the ignition switch off.

  1. 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.
  1. 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
REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH (Click here)

C
REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH (Click here)

D
USE SIMULATION METHOD TO CHECK (Click here)
A


12.CHECK NO. 2 SIDE AIRBAG SENSOR ASSEMBLY RH


    C166174E20
  1. Connect the connectors to the door side airbag sensor RH and airbag sensor assembly.

  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.

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

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

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

  1. Turn the ignition switch off.

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

  1. Check for DTCs (Click here).

    Result 
    Result
    Proceed to
    DTC B1633/81 is output.
    A
    DTC B1638/82 is output.
    (for 5 Door)
    B
    DTC B1638/82 is output.
    (for 3 Door)
    C
    DTC B1633/81 or B1638/82 is not output.
    D
    Text in Illustration 
    *1
    No. 2 Side Airbag Sensor Assembly LH
    *2
    Side Airbag Sensor Assembly RH

    HINT:
    Codes other than DTCs B1633/81 and B1638/82 may be output at this time, but they are not related to this check.
  1. Turn the ignition switch off.

  1. 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.
  1. 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
REPLACE NO. 2 SIDE AIRBAG SENSOR ASSEMBLY RH (Click here)

C
REPLACE NO. 2 SIDE AIRBAG SENSOR ASSEMBLY RH (Click here)

D
USE SIMULATION METHOD TO CHECK (Click here)
A


13.CHECK DOOR SIDE AIRBAG SENSOR RH


    C195583E03
  1. Interchange the door side airbag sensor RH with the door side airbag sensor LH and connect the connectors to them.

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

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

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

  1. Turn the ignition switch off.

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

  1. Check for DTCs (Click here).

    Result 
    Result
    Proceed to
    DTC B1633/81 or B1638/82 is not output.
    A
    DTC B1633/81 is output.
    B
    DTC B1638/82 is output.
    C
    Text in Illustration 
    *1
    Door Side Airbag Sensor LH
    *2
    No. 2 Side Airbag Sensor Assembly RH

    HINT:
    Codes other than DTCs B1633/81 and B1638/82 may be output at this time, but they are not related to this check.
  1. Turn the ignition switch off.

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



B
REPLACE AIRBAG SENSOR ASSEMBLY (Click here)

C
REPLACE DOOR SIDE AIRBAG SENSOR RH (Click here)
A

USE SIMULATION METHOD TO CHECK (Click here)  

14.CHECK FRONT DOOR WIRE RH (OPEN)


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


    C245319E01


    Text in Illustration 
    *1
    Door Side Airbag Sensor RH
    *2
    No. 2 Side Airbag Sensor Assembly RH
    *3
    Front Door Wire RH
    *4
    Floor Wire
    *5
    Connector D
    *6
    Connector E
    *7
    Service Wire
    -
    -
    *a
    Front view of wire harness connector
    (to Floor Wire)
    *b
    Front view of wire harness connector
    (to Door Side Airbag Sensor Assembly RH)

    HINT:
    The service wire has already been inserted into connector E.
  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    FJ1-1 (BDR+) - FJ1-2 (BDR-)
    Always
    Below 1 Ω
  1. Disconnect the service wire from connector E.



NG
REPLACE FRONT DOOR WIRE RH
OK

REPLACE FLOOR WIRE 

15.CHECK FRONT DOOR WIRE RH (SHORT)


    C241248E03
  1. Disconnect the floor wire connector from the front door wire RH.

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

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    FJ1-1 (BDR+) - FJ1-2 (BDR-)
    Always
    1 MΩ or higher
    Text in Illustration 
    *1
    Door Side Airbag Sensor RH
    *2
    No. 2 Side Airbag Sensor Assembly RH
    *3
    Front Door Wire RH
    *4
    Floor Wire
    *5
    Connector D
    *a
    Front view of wire harness connector
    (to Floor Wire)


NG
REPLACE FRONT DOOR WIRE RH
OK

REPLACE FLOOR WIRE 

16.CHECK FRONT DOOR WIRE RH (SHORT TO B+)
  1. Turn the ignition switch off.



    C241248E03
  1. 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.
  1. Disconnect the front door wire connector from the floor wire.

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

  1. Turn the ignition switch to ON.

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

    Standard Voltage:
    Tester Connection
    Switch Condition
    Specified Condition
    FJ1-1 (BDR+) - Body ground
    Ignition switch ON
    Below 1 V
    FJ1-2 (BDR-) - Body ground
    Ignition switch ON
    Below 1 V
    Text in Illustration 
    *1
    Door Side Airbag Sensor RH
    *2
    No. 2 Side Airbag Sensor Assembly RH
    *3
    Front Door Wire RH
    *4
    Floor Wire
    *5
    Connector D
    *a
    Front view of wire harness connector
    (to Floor Wire)


NG
REPLACE FRONT DOOR WIRE RH
OK

REPLACE FLOOR WIRE 

17.CHECK FRONT DOOR WIRE RH (SHORT TO GROUND)


    C241248E03
  1. Disconnect the front door wire connector from the floor wire.

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

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    FJ1-1 (BDR+) - Body ground
    Always
    1 MΩ or higher
    FJ1-2 (BDR-) - Body ground
    Always
    1 MΩ or higher
    Text in Illustration 
    *1
    Door Side Airbag Sensor RH
    *2
    No. 2 Side Airbag Sensor Assembly RH
    *3
    Front Door Wire RH
    *4
    Floor Wire
    *5
    Connector D
    *a
    Front view of wire harness connector
    (to Floor Wire)


NG
REPLACE FRONT DOOR WIRE RH
OK

REPLACE FLOOR WIRE