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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 140 (Supplemental Restraint System) >> Airbag System >> DTC B1628/82 Front Passenger Side - Side Airbag Sensor Assembly Initialization Incomplete; DTC B1637/82 Lost Communication with Passenger Side Rear Airbag Sensor I; DTC B1638/82 Passenger Side Rear Airbag Sensor Initialization Incomplete; DTC B1647/82 Lost Communication with Front Passenger Side Satellite Sensor Bus >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONNECTION OF CONNECTOR 
    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 center airbag sensor, rear airbag sensor RH and the side airbag sensor RH.

    OK: The connectors are properly connected. 

    NG: CONNECT CONNECTOR 

    OK: GO to Next Step 

  2. CHECK FLOOR WIRE NO. 2 (OPEN) 
    1. Disconnect the connectors from the center airbag sensor and the side airbag sensor RH.
    2. Using a service wire, connect L10-4 (BBR+) and L10-3 (BBR-) of connector C.
      NOTE: Do not forcibly insert the service wire into the terminals of the connector when connecting.
    3. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Specified Condition
      L7-17 (BBP+) - L7-18 (BBP-) Below 1 Ω

    NG: REPAIR OR REPLACE FLOOR WIRE NO. 2 

    Fig 1: Checking Floor Wire No. 2 (Open)
    G05189476Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO to Next Step 

  3. CHECK FLOOR WIRE NO. 2 (SHORT) 
    1. Disconnect the service wire from connector C.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Specified Condition
      L7-17 (BBP+) - L7-18(BBP-) 1 MΩ or higher

    NG: REPAIR OR REPLACE FLOOR WIRE NO. 2 

    Fig 2: Checking Floor Wire No. 2 (Short)
    G05184403Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO to Next Step 

  4. CHECK FLOOR WIRE NO. 2 (TO B+) 
    1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    2. Turn the ignition switch ON.
    3. Measure the voltage of the wire harness side connector.

      Standard voltage 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Specified Condition
      L7-17 (BBP+) - Body ground Below 1 V
      L7-18 (BBP-) - Body ground Below 1 V

    NG: REPAIR OR REPLACE FLOOR WIRE NO. 2 

    Fig 3: Checking Floor Wire No. 2 (To B+)
    G05184403Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO to Next Step 

  5. CHECK FLOOR WIRE NO. 2 (TO GROUND) 
    1. Turn the ignition switch OFF.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Specified Condition
      L7-17 (BBP+) - Body ground 1 MΩ or higher
      L7-18 (BBP-) - Body ground 1 MΩ or higher

    NG: REPAIR OR REPLACE FLOOR WIRE NO. 2 

    Fig 4: Checking Floor Wire No. 2 (To Ground)
    G05184403Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO to Next Step 

  6. CHECK FLOOR WIRE NO. 2 (OPEN) 
    1. Disconnect the connectors from the side airbag sensor RH and the rear airbag sensor RH.
    2. Using a service wire, connect L12-1 (BCR-) and L12-2 (BCR+) of connector C.
      NOTE: Do not forcibly insert the service wire into the terminals of the connector when connecting.
    3. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Specified Condition
      L10-1 (BCR+) - L10-2 (BCR-) Below 1 Ω

    NG: REPAIR OR REPLACE FLOOR WIRE NO. 2 

    Fig 5: Checking Floor Wire No. 2 (Open)
    G05184412Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO to Next Step 

  7. CHECK FLOOR WIRE NO. 2 (SHORT) 
    1. Disconnect the service wire from connector C.
    2. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Specified Condition
      L10-1 (BCR+) - L10-2 (BCR-) 1 MΩ or higher

    NG: REPAIR OR REPLACE FLOOR WIRE NO. 2 

    Fig 6: Checking Floor Wire No. 2 (Short)
    G05184413Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO to Next Step 

  8. CHECK FLOOR WIRE NO. 2 (TO B+) 
    1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    2. Turn the ignition switch ON.
    3. Measure the voltage of the wire harness side connector.

      Standard voltage 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Specified Condition
      L10-1 (BCR+) - Body ground Below 1 V
      L10-2 (BCR-) - Body ground Below 1 V

    NG: REPAIR OR REPLACE FLOOR WIRE NO. 2 

    Fig 7: Checking Floor Wire No. 2 (To B+)
    G05184413Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO to Next Step 

  9. CHECK FLOOR WIRE NO. 2 (TO GROUND) 
    1. Turn the ignition switch OFF.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Specified Condition
      L10-1 (BCR+) - Body ground 1 MΩ or higher
      L10-2 (BCR-) - Body ground 1 MΩ or higher

    NG: REPAIR OR REPLACE FLOOR WIRE NO. 2 

    Fig 8: Checking Floor Wire No. 2 (To Ground)
    G05184413Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO to Next Step 

  10. CHECK SIDE AIRBAG SENSOR RH 
    1. Connect the connectors to the center airbag sensor.
    2. Interchange the side airbag sensor LH with the side airbag sensor 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 ON, and wait for at least 60 seconds.
    5. Clear the DTCs (see page Check for DTCs (see DTC CHECK / CLEAR )).
    6. Turn the ignition switch OFF.
    7. Turn the ignition switch ON, and wait for at least 60 seconds.
    8. Check for DTCs (see DTC CHECK / CLEAR ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC B1623/81, B1632/81, B1633/81, B1642/81, B1628/82, B1637/82, B1638/ 82 and B1647/82 are not output A
      DTC B1628/82, B1637/82, B1638/82 and B1647/82 are output B
      DTC B1623/81, B1632/81, B1633/81 and B1642/81 are output C
    Fig 9: Checking Side Airbag Sensor RH
    G05184416Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

    DTCs other than DTC B1623/81, B1632/81, B1633/81, B1642/81, B1628/82, B1637/82, B1638/82 and 61647/ 82 may be output at this time, but they are not related to this check.

    B: REPLACE CENTER AIRBAG SENSOR ASSEMBLY 

    C: REPLACE SIDE AIRBAG SENSOR RH 

    A: GO to Next Step 

  11. CHECK REAR AIRBAG SENSOR RH 
    1. Turn the ignition switch OFF.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Interchange the rear airbag sensor RH with the rear airbag sensor LH and connect the connectors to them.
    4. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    5. Turn the ignition switch ON, and wait for at least 60 seconds.
    6. Clear the DTCs (see DTC CHECK / CLEAR ).
    7. Turn the ignition switch ON, and wait for at least 60 seconds.
    8. Check the DTCs (see DTC CHECK / CLEAR ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC B1623/81, B1632/81, B1633/81, B1642/81, B1628/82, B1637/82, B1638/ 82 and B1647/82 are not output A
      DTC B1628/82, B1637/82, B1638/82 and B1647/82 are output B
      DTC B1623/81, B1632/81, B1633/81 and B1642/81 are output C
    Fig 10: Checking Rear Airbag Sensor RH
    G05184417Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

    DTCs other than DTC B1623/81, B1632/81, B1633/81, B1642/81, B1628/82, B1637/82, B1638/82 and B1647/ 82 may be output at this time, but they are not related to this check.

    B: REPLACE CENTER AIRBAG SENSOR ASSEMBLY 

    C: REPLACE REAR AIRBAG SENSOR RH 

    A: USE SIMULATION METHOD TO CHECK 

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