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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 B1627/82 Lost Communication with Front Passenger Side - Side Airbag Sensor Assembly >> 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. 

    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 connectors.

      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 SIDE AIRBAG SENSOR RH 
    1. Connect the connectors to the center airbag sensor.
    2. Interchange the side airbag sensor RH with the side airbag sensor LH and connect me 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 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 B1622/81 and B1627/82 are not output A
      DTC B1622/81 is output B
      DTC B1627/82 is output C

      HINT:

      DTCs other than DTC B1622/81 and B1627/82 may be output at this time, but they are not related to this check.

    Fig 5: Checking Side Airbag Sensor RH
    G05184406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B: REPLACE SIDE AIRBAG SENSOR RH 

    C: REPLACE CENTER AIRBAG SENSOR ASSEMBLY 

    A: USE SIMULATION METHOD TO CHECK