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Steering Pad: Disposal

HINT:

When scrapping a vehicle equipped with the SRS or disposing of the steering pad, be sure to deploy the airbag first in accordance with the procedure described below. If any abnormality occurs with the airbag deployment, contact the SERVICE DEPT. of TOYOTA MOTOR SALES, U.S.A., INC.

CAUTION:
  • An airbag or pretensioner may be activated by static electricity. To prevent this, be sure to touch a metal surface with bare hands to discharge static electricity before performing this procedure.
  • Never dispose of a steering pad that has an undeployed airbag.
  • The airbag produces an exploding sound when it is deployed, so perform the operation outdoors and where it will not create a nuisance to nearby residents.
  • When deploying the airbag, always use the specified SST (SRS Airbag Deployment Tool). Perform the operation in a place away from electrical noise.
  • When deploying the airbag, perform the operation at least 10 m (33 ft) away from the steering pad.
  • The steering pad becomes extremely hot when the airbag is deployed, so do not touch it for at least 30 minutes after deployment.
  • Use gloves and safety glasses when handling a steering pad with a deployed airbag.
  • Do not apply water, etc. to a steering pad with a deployed airbag.
  • Always wash your hands with water after completing the operation.
  1. DISPOSE OF STEERING PAD (WHEN INSTALLED IN VEHICLE) 

    HINT:

    Prepare a battery as the power source to deploy the airbag.

    1. Check the function of the SST.

      SST 09082-00700 

      CAUTION: When deploying the airbag, always use the specified SST:
      SRS Airbag Deployment Tool.
      Fig 1: Checking Function Of SST
      G04951207Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Connect the SST to the battery.

        Connect the red clip of the SST to the battery positive (+) terminal and the black clip of the SST to the battery negative (-) terminal.

        Fig 2: Connecting SST To Battery
        G05131678Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Check the function of the SST.

        Press the SST activation switch, and check that the LED of the SST activation switch comes on.

        CAUTION:
        • Do not connect the SST connector (yellow colored one) to the airbag.
        • If the LED comes on when the activation switch is not being pressed, SST malfunction is possible, so replace the SST with a new one.
          Fig 3: Pressing SST Activation Switch
          G04951157Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Disconnect the SST from the battery.
    2. Precaution (see PRECAUTION  ).
    3. Disconnect the cable from the negative battery terminal.

      Wait for at least 90 seconds after disconnecting the cable to prevent the airbag working.

    4. Remove the steering column cover lower.
      1. While turning the steering wheel assembly to the right and left, remove the 3 screws and steering column cover lower.
    5. Install the SST.
      CAUTION: Check that there is no looseness in the steering wheel assembly and steering pad.
      1. Disconnect the airbag connector (yellow colored one) from the spiral cable with steering sensor.
        Fig 4: Turning Steering Wheel
        G05298285Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE: When handling the airbag connector, take care not to damage the airbag wire harness.
      2. Connect the SST connector to the airbag connector of the spiral cable with steering sensor.

        SST 09082-00700,09082-00780 

        NOTE: To avoid damaging the SST connector and wire harness, do not lock the secondary lock of the twin lock.
        Fig 5: Connecting SST Connector To Airbag Connector Of Spiral Cable With Steering Sensor
        G05298286Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Move the SST at least 10 m (33 ft) away from the vehicle front side window.
      4. Maintaining enough clearance for the SST wire harness in the front side window, close all doors and windows of the vehicle.
        NOTE: Take care not to damage the SST wire harness.
      5. Connect the red clip of the SST to the battery positive (+) terminal and the black clip of the SST to the negative (-) terminal.
        Fig 6: Identifying Clearance For SST Wire Harness In Front Side Window
        G04951160Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Deploy the airbag.
      1. Check that no one is inside the vehicle or within a 10 m (33 ft) radius of the vehicle.
      2. Press the SST activation switch and deploy the airbag.
        CAUTION:
        • When deploying the airbag, make sure that no one is near the vehicle.
        • The steering pad becomes extremely hot when the airbag is deployed, so do not touch it for at least 30 minutes after deployment.
        • Use gloves and safety glasses when handling a steering pad with a deployed airbag.
        • Do not apply water, etc. to a steering pad with a deployed airbag.
        • Always wash your hands with water after completing the operation.

        HINT:

        The airbag is deployed as the LED of the SST activation switch comes on.

  2. DISPOSE OF STEERING PAD (WHEN NOT INSTALLED IN VEHICLE) 
    NOTE:
    • When disposing of the steering pad, never use the customer's vehicle to deploy the airbag.
    • Be sure to follow the procedure detailed below when deploying the airbag.

    HINT:

    Prepare a battery as the power source to deploy the airbag.

    1. Check the function of the SST.
    2. Remove the steering pad (see REMOVAL  ).
      CAUTION:
      • When removing the steering pad, work must be started 90 seconds after the engine switch is turned off and the negative (-) terminal cable is disconnected from the battery.
      • When storing the steering pad, keep the airbag deployment side facing upward.
        Fig 7: Checking Function Of SST
        G04951207Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Using a service-purpose wire harness for the vehicle, tie down the steering pad to the disc wheel.

      Wire harness: Stripped wire harness section 1.25 mm 2  or more (0.0019 in. 2  or more) 

      CAUTION: If the wire harness is too thin or an alternative object is used to tie down the steering pad, it may be snapped by the shock when the airbag is deployed. Always use a wire harness for vehicle use with an area of at least 1.25 mm2 (0.0019 in.2 ).
      Fig 8: Identifying Stripped Wire Section
      G05419239Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      To calculate the area of the stripped wire harness section:

      Area = 3.14 x (Diameter)2 divided by 4

      1. Install the 2 bolts with washers into the 2 bolt holes on the steering pad.

        Bolt: 

        L: 35.0 mm (1.378 in.) 

        M: 6.0 mm (0.236 in.) 

        Pitch: 1.0 mm (0.039 in.) 

        Fig 9: Locating Steering Pad Bolts
        G05810342Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE:
        • Tighten the bolts by hand until they become difficult to turn.
        • Do not tighten the bolts excessively.
      2. After connecting the SST below to each other, connect them to the steering pad.

        SST 09082-00802 (09082-10801, 09082-30801) 

        Fig 10: Connecting SST To Steering Pad
        G05810343Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Using 3 wire harnesses, wind wire harness at least 2 times each around the bolts installed on the left and right sides of the steering pad.
        CAUTION:
        • Tightly wind the wire harness around the bolts so that there is no slack.
        • Make sure that the wire harness is tight. If there is slack in wire harness, the steering pad may become loose due to the shock when the airbag is deployed.
          Fig 11: Winding Wire Harness Around Bolts
          G05810344Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Face the airbag deployment side of the steering pad upward. Separately tie the left and right sides of the steering pad to the disc wheel through the hub nut holes. Position the SST connector so that it hangs downward through the hub hole of the disc wheel.
        CAUTION:
        • Make sure that the wire harness is tight. If there is slack in wire harness, the steering pad may become loose due to the shock when the airbag is deployed.
        • Always tie down the steering pad with the airbag deployment side facing upward.
          Fig 12: Tying Left And Right Sides Of Steering Pad To Disc Wheel
          G05298293Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE: The disc wheel will be marked by the airbag deployment, so use an extra disc wheel.
    4. Install the SST.
      CAUTION: Place the disc wheel on level ground.
      1. Connect the SST connector.

        SST 09082-00700 

        NOTE: To avoid damaging the SST connector and wire harness, do not lock the secondary lock of the twin lock. Also, secure some slack for the SST wire harness inside the disc wheel.
        Fig 13: Connecting SST Connector
        G05298294Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Move the SST at least 10 m (33 ft) away from the steering pad tied down to the disc wheel.
        Fig 14: Identifying SST Distance From Disc Wheel
        G05419245Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Cover the steering pad with a cardboard box or tires.
      1. Covering method using a cardboard box: Cover the steering pad with the cardboard box and place the weights on the cardboard box and place the weights on the cardboard box in 4 place with at least 190 N (19 kg, 43 lb).

        Cardboard box size: Must exceed the following dimensions 

        X: 460 mm (18.11 in.) 

        Y: 650 mm (25.59 in.) 

        Fig 15: Covering Steering Pad With Cardboard Box And Place Weights On Cardboard Box
        G04979591Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE:
        • When the dimension Y of the cardboard box exceeds the diameter of the disc wheel with tire which the steering pad is tied to, X should be the following size. X = 460 mm (18.11 in.) + width of tire
        • If a cardboard box which is smaller than the specified size is used, the cardboard box will be broken by the shock from the airbag deployment.
      2. Covering method using tires:

        Place at least 3 tires without disc wheels on the tire with disc wheel which the steering pad is tied to.

        Place the tire with disc wheel on them.

        Tire size: Must exceed the following dimensions 

        Width: 185 mm (7.28 in.) 

        Inner diameter: 360 mm (14.17 in.) 

        CAUTION: Do not use tires with disc wheels except on the top and bottom.
        NOTE:
        • The tires may be marked by the airbag deployment, so use an extra tire.
        • Do not place the SST connector under the tire because it could be damaged.
          Fig 16: Identifying Covering Method Of Tires
          G05005256Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Tie the tires together with 2 wire harnesses.
        CAUTION: Make sure that the wire harness is tight. Looseness in the wire harness results in the tires coming free due to the shock when the airbag is deployed.
        Fig 17: Tying Tires With Wire Harnesses
        G04951172Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Deploy the airbag.
      1. Connect the red clip of the SST to the battery positive (+) terminal and the black clip of the SST to the battery negative (-) terminal.
      2. Check that no one is within a 10 m (33 ft) radius of the disc wheel which the steering pad is tied to.
      3. Press the SST activation switch and deploy the airbag.
        CAUTION: When deploying the airbag, make sure that no one is near the tire.

        HINT:

        The airbag is deployed as the LED of the SST activation switch comes on.

        Fig 18: Connecting SST Clip To Battery Terminal
        G05419249Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Dispose of the steering pad.
      CAUTION:
      • The steering pad becomes extremely hot when the airbag is deployed, so do not touch it for at least 30 minutes after deployment.
      • Use gloves and safety glasses when handling a steering pad with a deployed airbag.
      • Do not apply water, etc. to a steering pad with a deployed airbag.
      • Always wash your hands with water after completing the operation.
        Fig 19: Placing Steering Pad In Plastic Bag
        G05131697Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the steering pad from the disc wheel.
      2. Place the steering pad in a plastic bag, tie it tightly and dispose of it as other general part disposal.
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