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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 194 (Supplemental Restraint System) >> Airbag System >> DTC B1830/57 Short in Driver Side Curtain Shield Squib Circuit; DTC B1831/57 Open in Driver Side Curtain Shield Squib Circuit; DTC B1832/57 Short to GND in Driver Side Curtain Shield Squib Circuit; DTC B1833/57 Short to B+ in Driver Side Curtain Shield Squib Circuit >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

  1. CHECK CURTAIN SHIELD AIRBAG ASSEMBLY LH (DRIVER SIDE CURTAIN SHIELD SQUIB) 

    SST 09843-18060 

    1. Turn the ignition switch off.
    2. Disconnect the negative (-) terminal cable from the battery and wait for at least 90 seconds.
    3. Disconnect the connectors from the curtain shield airbag assembly LH.
    4. Connect the white wire side of SST (resistance 2.1 Ω) to connector C.
      CAUTION: Never connect a tester to the curtain shield airbag assembly LH (driver side curtain shield squib) for measurement, as this may lead to a serious injury due to airbag deployment.
      NOTE:
      • Do not forcibly insert the SST into the terminals of the connector when connecting.
      • Insert the SST straight into the terminals of the connector.
    5. Connect the negative (-) terminal cable to the battery and wait for at least 2 seconds.
    6. Turn the ignition switch on and wait for at least 60 seconds.
    7. Clear the DTCs stored in the memory (See DTC CHECK / CLEAR  ).
    8. Turn the ignition switch off.
    9. Turn the ignition switch on and wait for at least 60 seconds.
    10. Check the DTCs (See DTC CHECK / CLEAR  ).
      Fig 1: Checking Curtain Shield Airbag Assembly LH
      G04830127Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: 

      DTC B1830, B1831, B1832, B1833 and 57 are not output. 

      HINT:

      DTCs other than DTC B1830, B1831, B1832, B1833 and 57 may be output at this time, but they are not related to this check.

    OK: REPLACE CURTAIN SHIELD AIRBAG ASSEMBLY LH 

    NG: GO TO NEXT STEP 

  2. CHECK CONNECTOR 
    1. Turn the ignition switch off.
    2. Disconnect the negative (-) terminal cable from the battery and wait for at least 90 seconds.
    3. Disconnect the SST from connector C.
    4. Check that the floor wire connectors (on the curtain shield airbag assembly LH side) are not damaged.

      OK: The lock button is not disengaged and the claw of the lock is not deformed or damaged. 

    NG: REPAIR OR REPLACE FLOOR WIRE 

    OK: GO TO NEXT STEP 

  3. CHECK FLOOR WIRE (DRIVER SIDE CURTAIN SHIELD SQUIB CIRCUIT) 
    1. Disconnect the connectors from the center airbag sensor assembly.
    2. Check for short to B+ in the circuit.
      1. Connect the negative (-) terminal cable to the battery and wait for at least 2 seconds.
      2. Turn the ignition switch on.
      3. Measure the voltage.

        Standard voltage 

        TESTER CONNECTION SPECIFIED CONDITION

        Tester Connection Condition Specified Condition
        J23-1 (ICL+) - Body ground Ignition switch on Below 1 V
        J23-2 (ICL-) - Body ground Ignition switch on Below 1 V
    3. Check for open in the circuit.
      1. Turn the ignition switch off.
      2. Disconnect the negative (-) terminal cable from the battery and wait for at least 90 seconds.
      3. Measure the resistance.

        Standard resistance 

        Fig 2: Checking Floor Wire (Driver Side Curtain Shield Squib Circuit)
        G04830128Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TESTER CONNECTION SPECIFIED CONDITION

        Tester Connection Condition Specified Condition
        J23-1 (ICL+) - J23-2 (ICL-) Always Below 1 Ω
    4. Check for short to ground in the circuit.
      1. Measure the resistance.

        Standard resistance 

        TESTER CONNECTION SPECIFIED CONDITION

        Tester Connection Condition Specified Condition
        J23-1 (ICL+) - Body ground Always 1 MΩ or higher
        J23-2 (ICL-j Body ground Always 1 MΩ or higher
    5. Check for short in the circuit.
      1. Release the activation prevention mechanism built into connector B (See DIAGNOSIS SYSTEM  ).
      2. Measure the resistance.

        Standard resistance 

        TESTER CONNECTION SPECIFIED CONDITION

        Tester Connection Condition Specified Condition
        J23-1 (ICL+)-J23-2 (ICL-) Always 1 MΩ or higher

    NG: REPAIR OR REPLACE FLOOR WIRE 

    OK: GO TO NEXT STEP 

  4. CHECK CENTER AIRBAG SENSOR ASSEMBLY 
    1. Connect the connectors to the curtain shield airbag assembly LH and the center airbag sensor assembly.
    2. Connect the negative (-) terminal cable to the battery and wait for at least 2 seconds.
    3. Turn the ignition switch on and wait for at least 60 seconds.
    4. Clear the DTCs stored in the memory (See DTC CHECK / CLEAR  ).
    5. Turn the ignition switch off.
    6. Turn the ignition switch on and wait for at least 60 seconds.
    7. Check the DTCs (See DTC CHECK / CLEAR  ).

      OK: DTC B1830, B1831, B1832, B1833 and 57 are not output. 

      HINT:

      DTCs other than DTC B1830, B1831, B1832, B1833 and 57 may be output at this time, but they are not related to this check.

      Fig 3: Checking Center Airbag Sensor Assembly
      G04830129Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE CENTER AIRBAG SENSOR ASSEMBLY 

    OK: USE SIMULATION METHOD TO CHECK 

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