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Height Control Valve Sub-ASSY No. 1: Replacement

NOTE:
  • Before replacement, press the height control OFF switch to stop the vehicle height control operation. 
  • Be careful that the vehicle body lowers because the air in the pneumatic cylinder is discharged by disconnecting the pneumatic cylinder side air tube of the height control valve. 
  • This operation takes out the air from the front shock absorber, therefore never rotate the lower part of the absorber by turning the steering wheel etc. 
  1. REMOVE ENGINE UNDER COVER NO. 1 
  2. SEPARATE FRONT FENDER SPLASH SHIELD SUB-ASSY RH (See  REPLACEMENT  ) 
  3. SEPARATE FRONT FENDER SPLASH SHIELD SUB-ASSY LH (See  REPLACEMENT  ) 
  4. REMOVE FRONT BUMPER COVER (See  REPLACEMENT  ) 
  5. REMOVE HEIGHT CONTROL VALVE SUB-ASSY NO. 1 
    1. Disconnect the connector.
    2. Disconnect the 3 height control tubes.

      HINT:

      For the removal procedure of the (type 3) tube, refer to SUSPENSION CONTROL SYSTEM .

      Fig 1: Disconnecting Height Control Tubes
      G03012840Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 2 nuts and the height control valve sub-assy No. 1.
      Fig 2: Removing Nuts And Height Control Valve Sub-Assy No. 1
      G03012841Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSTALL HEIGHT CONTROL VALVE SUB-ASSY NO. 1 
    1. Install the height control valve sub-assy No. 1 with the 2 nuts.

      Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf) 

      Fig 3: Installing Height Control Valve Sub-Assy No. 1
      G03012842Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Coat 2 new O-rings with MP grease No. 2 and install them on each height control tube.
    3. Connect the 3 height control tubes onto the height control valve sub-assy No. 1.

      HINT:

      For the removal procedure of the (type 3) tube, refer to SUSPENSION CONTROL SYSTEM .

      Fig 4: Connecting Height Control Tubes Onto Height Control Valve Sub-Assy No. 1
      G03012843Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Connect the connector.
  7. INSPECT AIR LEAK (See  ON-VEHICLE INSPECTION  ) 
  8. INSTALL FRONT BUMPER COVER 
  9. INSTALL FRONT FENDER SPLASH SHIELD SUB-ASSY LH 
  10. INSTALL FRONT FENDER SPLASH SHIELD SUB-ASSY RH 
  11. INSTALL ENGINE UNDER COVER NO. 1 
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