Suspension Control System: Precaution

WHEN LIFTING UP VEHICLE
1. When jacking up or lifting up, stop operation of the air suspension control system by pressing the height control OFF switch.
  
  Fig 1: Locating Height Control OFF Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DISCONNECTION AND CONNECTION OF HEIGHT CONTROL TUBE
NOTE:
- Disconnection and connection of the height control tube should be performed by hand to prevent foreign objects from entering.
- Never damage the height control tube.
1. Disconnect the height control tube.
  1. Pinch "A" of the connector No. 1 and pull out from the housing.
  2. Set the SST to the tube.
    SST 09730-00010
    
    Fig 3: Identifying SST & Air Tube
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. Insert SST into the housing to expand the claw of the connector No. 2 in the housing.
  4. Pull out the tube with SST inserted.
    NOTE: Do not pull on the tube with excessive force.
  5. Insert a screwdriver into the circular hole on the housing, and remove the connector No. 2, the 2 O-rings and the plate from the housing.
    HINT:
    
    The O-rings, plate and connector No. 2 are non-reusable parts.
    
    Fig 4: Identifying SST, Plate, O-Ring & Air Tube
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Install height control tube O-ring and the plate.
  NOTE: When replacing the parts on which the tube to be installed with a new one, it is not necessary to perform the procedure for installation.
  
  Fig 5: Identifying Height Control Tube O-Ring & Plate
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Apply MP grease to 2 new O-rings and plate and install them to the straight tube or an equivalent.
    NOTE: Install the plate between the O-rings.
    Keep foreign matter from adhering to the O-rings and the height control tube in order to prevent air leaks.
  2. Insert the tube on which the 2 O-rings and plate are installed into the housing, and then push it in lightly with a piece of rolled up cardboard.
    
    Fig 6: Identifying Height Control Tube O-Ring, Cardboard & Plate
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. Push the connector No. 2 into the housing to where a clicking sound is heard.
    
    Fig 7: Locating Connector No. 2
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Install the height control tube.
  1. Push the tube and connector No. 1 into the housing to where a clicking sound is heard.
    NOTE:
    The port (hole) of the housing should be set in the position 90° from the claws of connector No. 1.
    
    Pull the tube lightly to make sure that it is securely connected.
    
    Prevent foreign matter from being attached to the O-rings and height control tube. Failure to do so may cause air leakage.
    Fig 8: Identifying Housing, Connector, Claw & Air Tube
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002