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Home/Lexus/GX/Lexus GX J120 (2002-2009)/Repair manual/Suspension Control Systems/Suspension Control System: Removal & Installation
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Suspension Control System: Removal & Installation Lexus GX J120

Suspension Control Systems 14 illustrations ~1761 words

REPLACEMENT

HINT

See COMPONENTS

Scheme 26

Scheme 26: REPLACEMENT
Scheme 26: REPLACEMENT

Scheme 27

Scheme 27
Scheme 27

Scheme 28

Scheme 28
Scheme 28

Scheme 29

Scheme 29
Scheme 29
  1. REMOVE REAR DISC WHEEL
  2. REMOVE QUARTER PANEL MUDGUARD REAR LH
  3. REMOVE FUEL TANK FILLER PIPE PROTECTOR Remove the 4 clips and the fuel tank filler pipe protector.
  4. REMOVE HEIGHT CONTROL COMPRESSOR COVER Remove the 3 clips and the height control compressor cover.
  5. REMOVE HEIGHT CONTROL FILTER Disconnect the 2 clips and the 2 hoses. Remove the 2 bolts and the height control filter.
  6. DISCONNECT HEIGHT CONTROL TUBE NO. 2 Remove the holder. Spread the clip and slowly pull the height control tube No. 2 straight out. NOTE: Do not remove the clip from the union except when replacing it. Remove the 2 O-rings.
  7. REMOVE HEIGHT CONTROL COMPRESSOR ASSY Disconnect the connector. Remove the 3 clamps. Remove the 3 bolts. Disconnect the clip and remove the No. 1 hose. Remove the 3 bolts, the height control compressor and the dryer with the bracket. Remove the bolt, the dryer and the O-ring. Remove the 3 bushings from the height control compressor assy.
  8. INSTALL HEIGHT CONTROL COMPRESSOR ASSY Install the 3 bushings to the height control compressor assy. Install the bolt, the dryer and the new O-ring. Torque: 6.4 N.m (65 kgf.cm, 57 in.lbf) Assemble the height control compressor, the dryer and the bracket as a unit to the vehicle, and tighten the 3 bolts to fix the bracket to the frame. Torque: 29 N.m (300 kgf.cm, 21 ft.lbf) Install the height control compressor assy to the bracket with the 3 bolts. Torque: 5.9 N.m (60 kgf.cm, 52 in.lbf) Install the 3 clamps. Connect the connector. Connect the No. 1 hose with a new clip.
  9. CONNECT HEIGHT CONTROL TUBE NO. 2 Coat 2 new O-rings with MP grease. Push the height control tube No. 2 in straight to connect it until the clip makes "click" sound. NOTE: Do not get scratches or foreign particle on the O-ring, the O-ring seal and the flare section. Install the holder.
  10. INSTALL HEIGHT CONTROL FILTER Install the height control filter with the new 2 bolts. Torque: 6.4 N.m (65 kgf.cm, 57 in.lbf) Connect 2 new clips and 2 hoses.
  11. INSTALL HEIGHT CONTROL COMPRESSOR COVER Install the height control compressor cover with 3 new clips.
  12. INSPECT AIR LEAK (See «ON-VEHICLE INSPECTION»(ref-228787-S29119478392006041100000) )
  13. INSTALL FUEL TANK FILLER PIPE PROTECTOR Install the fuel tank filler pipe protector with the 4 clips.
  14. INSTALL QUARTER PANEL MUDGUARD REAR LH
  15. INSTALL REAR DISC WHEEL Torque: 112 N.m (1,140 kgf.cm, 83 ft.lbf)

HINT

See COMPONENTS

Scheme 30

Scheme 30: REPLACEMENT
Scheme 30: REPLACEMENT

Scheme 31

Scheme 31
Scheme 31
  1. REMOVE REAR DISC WHEEL
  2. REMOVE QUARTER PANEL MUDGUARD REAR LH
  3. REMOVE FUEL TANK FILLER PIPE PROTECTOR (See «HEIGHT CONTROL COMPRESSOR ASSY»(ref-228787-S15786071152006041100000) )
  4. REMOVE HEIGHT CONTROL COMPRESSOR COVER (See «HEIGHT CONTROL COMPRESSOR ASSY»(ref-228787-S15786071152006041100000) )
  5. REMOVE HEIGHT CONTROL FILTER (See «HEIGHT CONTROL COMPRESSOR ASSY»(ref-228787-S15786071152006041100000) )
  6. DISCONNECT HEIGHT CONTROL TUBE NO. 2 (See «HEIGHT CONTROL COMPRESSOR ASSY»(ref-228787-S15786071152006041100000) )
  7. REMOVE HEIGHT CONTROL DRYER ASSY Disconnect the connector. Remove the 3 bolts. Remove the 3 bolts, the height control compressor and the dryer with the bracket. Remove the bolt and the dryer. Remove the O-ring.
  8. INSTALL HEIGHT CONTROL DRYER ASSY Install the bolt, the dryer and a new O-ring. Torque: 6.4 N.m (65 kgf.cm, 57 in.lbf) Assemble the height control compressor, the dryer and the bracket as a unit to the vehicle, and tighten the 3 bolts to fix the bracket to the frame. Torque: 29 N.m (300 kgf.cm, 21 ft.lbf) Install the height control compressor assy to the bracket with the 3 bolts. Torque: 5.9 N.m (60 kgf.cm, 52 in.lbf) Connect the connector.
  9. CONNECT HEIGHT CONTROL TUBE NO. 2 (See «HEIGHT CONTROL COMPRESSOR ASSY»(ref-228787-S15786071152006041100000) )
  10. INSTALL HEIGHT CONTROL FILTER (See «HEIGHT CONTROL COMPRESSOR ASSY»(ref-228787-S15786071152006041100000) )
  11. INSTALL HEIGHT CONTROL COMPRESSOR COVER (See «HEIGHT CONTROL COMPRESSOR ASSY»(ref-228787-S15786071152006041100000) )
  12. INSPECT AIR LEAK (See «ON-VEHICLE INSPECTION»(ref-228787-S29119478392006041100000) )
  13. INSTALL FUEL TANK FILLER PIPE PROTECTOR (See «HEIGHT CONTROL COMPRESSOR ASSY»(ref-228787-S15786071152006041100000) )
  14. INSTALL QUARTER PANEL MUDGUARD REAR LH
  15. INSTALL REAR DISC WHEEL Torque: 112 N.m (1,140 kgf.cm, 83 ft.lbf)

HINT

See COMPONENTS

  1. DISCONNECT HEIGHT CONTROL TUBE NO. 2 Remove the holder. Spread the clip and slowly pull the height control tube No. 2 straight out. Remove the 2 O-rings.
  2. DISCONNECT HEIGHT CONTROL TUBE NO. 6 Using SST, disconnect the height control tube No. 6. SST 09730-00010 NOTE: Refer to PRECAUTION of removal and installation of the height control tube (See «PRECAUTION»(ref-228787-S08323057552006041100000) ). Remove the 2 O-rings, the plate and the connector No. 2.
  3. DISCONNECT HEIGHT CONTROL TUBE NO. 7 Using SST, disconnect the height control tube No. 7. SST 09730-00010 NOTE: Refer to PRECAUTION of removal and installation of the height control tube (See «PRECAUTION»(ref-228787-S08323057552006041100000) ). Remove the 2 O-rings, the plate and the connector No. 2.
  4. REMOVE HEIGHT CONTROL RESERVOIR ASSY Remove the 2 bolts and the height control reservoir assy.
  5. INSTALL HEIGHT CONTROL RESERVOIR ASSY Install the height control reservoir assy with the 2 bolts. Torque: 29 N.m (300 kgf.cm, 21 ft.lbf)
  6. CONNECT HEIGHT CONTROL TUBE NO.7 Install 2 new O-rings, a new plate, a new connector No. 2, and connect the height control tube No. 7. NOTE: Refer to PRECAUTION of removal and installation of the height control tube (See «PRECAUTION»(ref-228787-S08323057552006041100000) ).
  7. CONNECT HEIGHT CONTROL TUBE NO. 6 Install 2 new O-rings, a new plate, a new connector No. 2, and connect the height control tube No. 6. NOTE: Refer to PRECAUTION of removal and installation of the height control tube (See «PRECAUTION»(ref-228787-S08323057552006041100000) ).
  8. CONNECT HEIGHT CONTROL TUBE NO. 2 Coat 2 new O-rings with MP grease. Push the height control tube No. 2 in straight to connect it until the clip makes "click" sound. Install the holder.
  9. INSPECT AIR LEAK (See «ON-VEHICLE INSPECTION»(ref-228787-S29119478392006041100000) )

HINT

See LOCATION

Scheme 32

Scheme 32: REPLACEMENT
Scheme 32: REPLACEMENT
  1. DISCONNECT BATTERY NEGATIVE TERMINAL
  2. INSTALL INSTRUMENT PANEL UNDER COVER SUB-ASSY NO. 1 (SEE «REPLACEMENT»(ref-228812-S42057540512006041100000) )
  3. INSTALL COWL SIDE TRIM BOARD LH (SEE «REPLACEMENT»(ref-228807-S32953263012006041100000) )
  4. REMOVE FRONT DOOR SCUFF PLATE LH (SEE «REPLACEMENT»(ref-228807-S32953263012006041100000) )
  5. REMOVE COWL SIDE TRIM BOARD LH (SEE «REPLACEMENT»(ref-228807-S32953263012006041100000) )
  6. REMOVE INSTRUMENT PANEL UNDER COVER SUB-ASSY NO. 1 (SEE «REPLACEMENT»(ref-228807-S32953263012006041100000) )
  7. REMOVE INSTRUMENT PANEL FINISH PLATE (SEE «REPLACEMENT»(ref-228807-S32953263012006041100000) )
  8. REMOVE INSTRUMENT PANEL FINISH LOWER PANEL RH Remove the 2 nuts and a bolt, disconnect the junction block. Disconnect the connector from the suspension control ECU. Remove the 2 bolts and the suspension control ECU.
  9. REMOVE INSTRUMENT PANEL LOWER LH Install the suspension control ECU with the 2 bolts. Torque: 7.8 N.m (80 kgf.cm, 69 in.lbf) Connect the connector to the suspension control ECU. Install the junction block with the 2 nuts and a bolt. Torque: 8.4 N.m (86 kgf.cm, 74 in.lbf)
  10. REMOVE SUSPENSION CONTROL ECU
  11. INSTALL SUSPENSION CONTROL ECU
  12. INSTALL INSTRUMENT PANEL LOWER LH
  13. INSTALL INSTRUMENT PANEL FINISH LOWER PANEL RH
  14. INSTALL COWL SIDE TRIM BOARD LH
  15. INSTALL FRONT DOOR SCUFF PLATE LH

HINT

See COMPONENTS

Scheme 33

Scheme 33: REPLACEMENT
Scheme 33: REPLACEMENT
  1. REMOVE REAR DISC WHEEL
  2. REMOVE HEIGHT CONTROL SENSOR SUB-ASSY REAR LH Disconnect the connector from the height control sensor. Place matchmarks on the link and the bracket. Remove the nut and disconnect the sensor link. Remove the 2 bolts and height control sensor.
  3. INSTALL HEIGHT CONTROL SENSOR SUB-ASSY REAR LH Install the height control sensor with the 2 bolts. Torque: 13 N.m (133 kgf.cm, 10 ft.lbf) Align the matchmarks on the link and the bracket. Connect the sensor link with the nut. Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf) Connect the connector to the height control sensor.
  4. INSTALL REAR DISC WHEEL Torque: 112 N.m (1,140 kgf.cm, 83 ft.lbf)
  5. MEASURE VEHICLE HEIGHT (SEE «FRONT WHEEL ALIGNMENT»(ref-228788-S15882064162006041100000) )
  6. ADJUST VEHICLE HEIGHT (See «ON-VEHICLE INSPECTION»(ref-228787-S29119478392006041100000) )

HINT

See LOCATION

Scheme 34

Scheme 34: REPLACEMENT
Scheme 34: REPLACEMENT
  1. REMOVE FRONT DOOR SCUFF PLATE RH (SEE «REPLACEMENT»(ref-228812-S42057540512006041100000) )
  2. REMOVE COWL SIDE TRIM BOARD RH (SEE «REPLACEMENT»(ref-228807-S32953263012006041100000) )
  3. REMOVE INSTRUMENT PANEL UNDER COVER SUB-ASSY NO. 1 (SEE «REPLACEMENT»(ref-228807-S32953263012006041100000) )
  4. REMOVE INSTRUMENT PANEL FINISH PLATE (SEE «REPLACEMENT»(ref-228807-S32953263012006041100000) )
  5. REMOVE INSTRUMENT PANEL FINISH LOWER PANEL RH (SEE «REPLACEMENT»(ref-228807-S32953263012006041100000) )
  6. REMOVE INSTRUMENT PANEL LOWER LH (SEE «REPLACEMENT»(ref-228807-S32953263012006041100000) )
  7. REMOVE ACCELERATION SENSOR Disconnect the connector from the acceleration sensor. Remove a bolt and the acceleration sensor.
  8. INSTALL ACCELERATION SENSOR Install the acceleration sensor with a bolt. Torque: 7.8 N.m (80 kgf.cm, 69 in.lbf) Connect the connector to the acceleration sensor.
  9. INSTALL INSTRUMENT PANEL LOWER LH
  10. INSTALL INSTRUMENT PANEL FINISH LOWER PANEL RH
  11. INSTALL INSTRUMENT PANEL FINISH PLATE
  12. INSTALL INSTRUMENT PANEL UNDER COVER SUB-ASSY NO. 1
  13. INSTALL COWL SIDE TRIM BOARD RH
  14. INSTALL FRONT DOOR SCUFF PLATE RH

HINT

See LOCATION

Scheme 35

Scheme 35: REPLACEMENT
Scheme 35: REPLACEMENT
  1. REMOVE REAR NO. 2 SEAT ASSY LH (SEE «OVERHAUL»(ref-228808-S27930267532006041100000) )
  2. REMOVE QUARTER SCUFF PLATE INSIDE LH (SEE «REPLACEMENT»(ref-228812-S42057540512006041100000) )
  3. REMOVE REAR DOOR SCUFF PLATE LH (SEE «REPLACEMENT»(ref-228812-S42057540512006041100000) )
  4. REMOVE REAR DOOR OPENING TRIM WEATHERSTRIP RH (SEE «REPLACEMENT»(ref-228812-S42057540512006041100000) )
  5. REMOVE BACK DOOR WEATHERSTRIP (SEE «REPLACEMENT»(ref-228812-S42057540512006041100000) )
  6. REMOVE REAR FLOOR MAT SUPPORT PLATE REAR (SEE «REPLACEMENT»(ref-228812-S42057540512006041100000) )
  7. REMOVE QUARTER INSIDE TRIM BOARD LH (SEE «REPLACEMENT»(ref-228812-S42057540512006041100000) )
  8. REMOVE ACCELERATION SENSOR ASSY Disconnect the connector. Remove a clip, bolt and the acceleration sensor assy.
  9. INSTALL ACCELERATION SENSOR ASSY Install the acceleration sensor assy with a clip and a bolt. Torque: 7.8 N.m (80 kgf.cm, 69 in.lbf) Connect the connector.
  10. INSTALL REAR NO. 2 SEAT ASSY LH (SEE «OVERHAUL»(ref-228808-S27930267532006041100000) )

HINT

See LOCATION .

Scheme 36

Scheme 36: REPLACEMENT
Scheme 36: REPLACEMENT

Scheme 37

Scheme 37
Scheme 37
  1. DISCONNECT BATTERY NEGATIVE TERMINAL
  2. REMOVE RR CONSOLE BOX ASSY (SEE «REPLACEMENT»(ref-228807-S32953263012006041100000) ) HINT: Refer to the procedures up to "REMOVE RR CONSOLE BOX ASSY".
  3. REMOVE ACCELERATION SENSOR ASSY Disengage the 2 clamps. Remove the 2 bolts and acceleration sensor assy. Disconnect the connector from the acceleration sensor assy.
  4. INSTALL ACCELERATION SENSOR ASSY Connect the connector to the acceleration sensor assy. Install the acceleration sensor assy with the 2 bolts. Torque: 8.0 N.m (82 kgf.cm, 71 in.lbf) Engage the 2 clamps.
  5. INSTALL RR CONSOLE BOX ASSY NOTE: When installing the rear console box assy, do not apply excessive force, as the bracket may become deformed.
  6. CONNECT BATTERY NEGATIVE TERMINAL
  7. PERFORM ACCELERATION SENSOR ASSY ZERO POINT CALIBRATION (SEE «CALIBRATION»(ref-228751-S26070045882006041100000) )

HINT

See LOCATION .

Scheme 38

Scheme 38: REPLACEMENT
Scheme 38: REPLACEMENT

Scheme 39

Scheme 39
Scheme 39
  1. DISCONNECT BATTERY NEGATIVE TERMINAL
  2. REMOVE ROOF SIDE GARNISH INNER LH (SEE «REPLACEMENT»(ref-228812-S42057540512006041100000) ) HINT: Refer to the procedures up to "REMOVE ROOF SIDE GARNISH INNER LH".
  3. REMOVE STABILIZER CONTROL ECU Disconnect the connector. Remove the 2 bolts and stabilizer control ECU. NOTE: Avoid any impact to the stabilizer control ECU. Replace the stabilizer control ECU with a new one if it is dropped.
  4. INSTALL STABILIZER CONTROL ECU Install the stabilizer control ECU with the 2 bolts. Torque: 7.8 N.m (80 kgf.cm, 69 in.lbf) Connect the connector.
  5. INSTALL ROOF SIDE GARNISH INNER LH (SEE «REPLACEMENT»(ref-228812-S42057540512006041100000) ) HINT: Refer to the procedures from "INSTALL ROOF SIDE GARNISH INNER LH".
  6. CONNECT BATTERY NEGATIVE TERMINAL
  7. PERFORM ACCELERATION SENSOR ASSY ZERO POINT CALIBRATION (SEE «CALIBRATION»(ref-228751-S26070045882006041100000) )

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