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Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DASH WIRE (FRONT PASSENGER SIDE SQUIB (2ND STEP) CIRCUIT) 
    1. Turn the ignition switch to LOCK.
    2. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
    3. Disconnect the connectors from the center airbag sensor and the front passenger airbag.
    4. Measure the resistance between the body ground and P2+ of the A27 dash wire connector on the front passenger airbag (front passenger side squib (2nd step)) side.

      Standard resistance: 1 MΩ or higher 

    Fig 1: Checking Dash Wire (Front Passenger Side Squib (2nd Step) Circuit)
    G04438186Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE DASH WIRE 

    OK: GO TO NEXT STEP 

  2. CHECK CENTER AIRBAG SENSOR ASSEMBLY 
    1. Connect the connector to the center airbag sensor.
    2. Using a service wire, connect P2+ and P2- of the A27 dash wire connector on the front passenger airbag (front passenger side squib (2nd step)) side.
    3. Connect the negative (-) terminal cable to the battery, and wait at least for 2 seconds.
    4. Turn the ignition switch to ON, and wait at least for 10 seconds.
    5. Clear the DTC stored in memory (see DTC CHECK/CLEAR  ).
    6. Turn the ignition switch to LOCK, and wait at least for 10 seconds.
    7. Turn the ignition switch to ON, and wait at least for 10 seconds.
    8. Check the DTC (see DTC CHECK/CLEAR  ).

      OK: DTC B1187/55 is not output. 

      HINT:

      Codes other than code B1187/55 may be output at this time, but they are not relevant to this check.

    Fig 2: Checking Center Airbag Sensor Assembly
    G04438187Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE CENTER AIRBAG SENSOR ASSEMBLY 

    OK: GO TO NEXT STEP 

  3. CHECK FRONT PASSENGER SIDE SQUIB (2ND STEP) 
    1. Turn the ignition switch to LOCK.
    2. Disconnect the negative (-) terminal cable from the battery, and wait at least for 90 seconds.
    3. Connect the front passenger airbag (front passenger side squib (2nd step)) to the dash wire.
    4. Connect the negative (-) terminal cable to the battery, and wait at least for 2 seconds.
    5. Turn the ignition switch to ON, and wait at least for 10 seconds.
    6. Clear the DTC stored in memory (see DTC CHECK/CLEAR  ).
    7. Turn the ignition switch to LOCK, and wait at least for 10 seconds.
    8. Turn the ignition switch to ON, and wait at least for 10 seconds.
    9. Check the DTC (see DTC CHECK/CLEAR  ).

      OK: DTC B1187/55 is not output. 

      HINT:

      Codes other than code B1187/55 may be output at this time, but they are not relevant to this check.

    Fig 3: Checking Front Passenger Side Squib (2nd Step)
    G04438188Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE FRONT PASSENGER AIRBAG ASSEMBLY (FRONT PASSENGER SIDE SQUIB (2ND STEP)) 

    OK: USE SIMULATION METHOD TO CHECK