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Steering Column ASSY: Overhaul

  1. PRECAUTION (See  SUPPLEMENTAL RESTRAINT SYSTEM  ) 
  2. DISCONNECT BATTERY NEGATIVE TERMINAL 
  3. PLACE FRONT WHEELS FACING STRAIGHT AHEAD 
  4. REMOVE STEERING WHEEL COVER LOWER NO. 3 
  5. REMOVE STEERING WHEEL COVER LOWER NO. 2 
  6. REMOVE HORN BUTTON ASSY 
    NOTE: If the airbag connector is disconnected with the ignition switch being at ON, DTCs will be recorded. 
    1. Using a torx socket wrench (Torx socket wrench (T=30), loosen the 2 torx screws until the groove along the screw circumference catches on the screw case.
      Fig 1: Loosening Torx Screws Until Groove Along Screw Circumference Catches On Screw Case
      G01324044Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: When removing the horn button assy, take care not to pull the airbag wire harness. 
    2. Pull out the horn button assy from the steering wheel assy.
    3. Using a screwdriver, release the lock part of each of the airbag connectors and disconnect the 2 airbag connectors.
    4. Disconnect the horn ground harness from the horn button assy.
      Fig 2: Releasing Lock Part Of Each Of Airbag Connectors And Disconnecting Airbag Connectors
      G01324045Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    CAUTION:
    • When storing the horn button assy, keep the upper surface of the pad facing upward.
    • Never disassemble the horn button assy.
      Fig 3: Identifying Correct Way Of Storing Horn Button Assy
      G01324046Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE STEERING WHEEL ASSY 
    1. W/Steering switch

      Disconnect the steering switch connector.

    2. Remove the steering wheel assy set nut.
    3. Place matchmarks on the steering wheel assy and main shaft assy.
    4. Using SST, remove the steering wheel assy.

      SST 09950-50013 (09951-05010, 09952-05010, 09953-05020, 09954-05021)

      Fig 4: Placing Matchmarks On Steering Wheel Assy And Main Shaft Assy
      G01324047Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE FRONT DOOR SCUFF PLATE LH 
  9. REMOVE FRONT FLOOR FOOTREST 
  10. REMOVE COWL SIDE TRIM BOARD LH 
  11. REMOVE INSTRUMENT PANEL SAFETY PAD SUB-ASSY 
  12. REMOVE INSTRUMENT PANEL LOWER LH 
  13. REMOVE SPIRAL CABLE SUB-ASSY 
    1. Remove the 3 screws and steering column cover upper and lower.
      Fig 5: Removing Screws And Steering Column Cover Upper And Lower
      G01324048Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the 2 connectors from the spiral cable sub-assy.
    3. Remove the 4 screws and spiral cable sub-assy.
      Fig 6: Removing Screws And Spiral Cable Sub-Assy
      G01324049Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. REMOVE TURN SIGNAL SWITCH ASSY 
    1. Disconnect the 3 connectors.
    2. Remove the 3 screws and turn signal switch assy.
      Fig 7: Removing Screws And Turn Signal Switch Assy
      G01324050Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. REMOVE ENGINE UNDER COVER SUB-ASSY NO. 1 
    1. Remove the 4 bolts and engine under cover sub-assy No. 1.
  16. REMOVE ENGINE UNDER COVER ASSY REAR 
    1. Remove the 4 bolts and engine under cover assy rear.
  17. REMOVE STEERING SLIDING YOKE 
    1. Remove the 2 bolts from the steering sliding yoke.
    2. Slide the steering sliding yoke up and separate it from the steering intermediate shaft sub-assy No. 2.
    3. Pull down the steering sliding yoke from the steering inter-mediate shaft assy to remove.
      Fig 8: Pulling Down Steering Sliding Yoke From Steering Inter-Mediate Shaft Assy To Remove
      G01324051Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. REMOVE STEERING INTERMEDIATE SHAFT COVER 
    1. Remove the 4 bolts and steering intermediate shaft cover.
      Fig 9: Removing Bolts And Steering Intermediate Shaft Cover
      G01324052Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  19. REMOVE STEERING INTERMEDIATE SHAFT NO. 2 
    1. Mark the matchmarks on the power steering gear assy and steering intermediate shaft sub-assy No. 2.
    2. Remove the bolt and intermediate shaft sub-assy No. 2 from the power steering gear assy.
      Fig 10: Marking Matchmarks On Power Steering Gear Assy And Steering Intermediate Shaft Sub-Assy
      G01324053Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      When replacing the gear box with a new one, be sure to align the matchmarks with the protrusion to install.

    3. Align the notch with the protrusion of the gear box to make a matchmarks on the intermediate shaft No. 2.
  20. REMOVE STEERING COLUMN HOLE COVER 
    1. Remove the heater to register duct.
    2. Remove the 4 clips and steering column hole cover.
      Fig 11: Removing Clips And Steering Column Hole Cover
      G01324054Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  21. REMOVE TILT STEERING GEAR ASSY W/MOTOR 
    1. Disconnect each of the connectors from the steering column assy.
    2. Disconnect the wire harness from the steering column assy.
    3. Remove the 4 steering column set nuts.
    4. Pull out the steering column assy with the intermediate shaft assy.
      Fig 12: Removing Steering Column Set Nuts
      G01324055Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  22. REMOVE STEERING INTERMEDIATE SHAFT ASSY 
    1. Remove the bolt and separate the steering shaft thrust stopper from the steering intermediate shaft assy.
    2. Pull out the intermediate shaft assy and steering shaft thrust stopper from the tilt steering gear assy.
      Fig 13: Pulling Out Intermediate Shaft Assy And Steering Shaft Thrust Stopper From Tilt Steering Gear Assy
      G01324056Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  23. REMOVE STEERING COLUMN BRACKET ASSY UPPER 
    1. Using a 3 mm (0.12 in.) pin punch, mark the center of the 2 tapered-head bolts.
    2. Using a 4-5 mm (0.12-0.16 in.) drill, drill in to the 2 tapered-head bolts.
    3. Using a screw extractor, remove the 2 tapered-head bolts, steering column bracket assy upper, steering column upper clamp.
      Fig 14: Removing Tapered-Head Bolts, Steering Column Bracket Assy Upper, Steering Column Upper Clamp
      G01324057Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  24. REMOVE TRANSPONDER KEY AMPLIFIER 
    NOTE: Take care not to use excessive force to prevent the case from being damaged. 
    1. Expand the claw hung on the upper bracket by approx, 1.0 mm (0.039 in.) using a screwdriver.
    2. Pull the transponder key amplifier toward the rear of the vehicle with the claw open.
      Fig 15: Pulling Transponder Key Amplifier Toward Rear Of Vehicle With Claw Open
      G01324058Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  25. REMOVE IGNITION SWITCH LOCK CYLINDER & KEY SET 
    1. Place the ignition switch lock cylinder & key set at the ACC position.
    2. Push down the stop pin with a screwdriver and pull out the ignition switch lock cylinder & key set.
      Fig 16: Removing Ignition Switch Lock Cylinder
      G01324059Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  26. REMOVE UN-LOCK WARNING SWITCH ASSY 
    1. Disconnect the un-lock warning switch assy connector from the ignition or start switch assy.
    2. Remove the un-lock warning switch assy toward the rear of the vehicle by pushing up the center part.
      Fig 17: Removing Un-Lock Warning Switch Assy
      G01324060Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  27. REMOVE IGNITION OR STARTER SWITCH ASSY 
    1. Remove the 2 screws and ignition or starter switch assy from the steering column bracket assy upper.
      Fig 18: Removing Screws And Ignition Switch Assy From Steering Column Bracket Assy Upper
      G01324061Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  28. REMOVE KEY INTER LOCK SOLENOID 
    1. Remove the 2 screws and key inter lock solenoid from the steering column bracket assy upper.
      Fig 19: Removing Screws And Key Inter Lock Solenoid From Steering Column Bracket Assy Upper
      G01324062Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  29. INSTALL KEY INTER LOCK SOLENOID 
    1. Install the key inter lock solenoid to the steering column bracket assy upper with 2 screws.
  30. INSTALL IGNITION OR STARTER SWITCH ASSY 
    1. Install the ignition or starter switch assy to the steering column bracket assy upper with 2 screws.
  31. INSTALL UN-LOCK WARNING SWITCH ASSY 
    1. Install the un-lock warning switch assy to the steering column bracket assy upper.
    2. Connect the un-lock warning switch assy connector to the ignition or starter switch assy.
      Fig 20: Installing Un-Lock Warning Switch Assy
      G01324063Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. INSTALL IGNITION SWITCH LOCK CYLINDER & KEY SET 
    1. Make sure that the ignition switch lock cylinder assy is at the ACC position.
    2. Install the ignition switch lock cylinder assy.
  33. INSTALL TRANSPONDER KEY AMPLIFIER
    NOTE:

    Take care not to push the amplifier up with excessive force to prevent it from being damaged. 

    1. Align the transponder key amplifier with the installation position of the upper bracket with the amplifier inclined.
    2. Push up the transponder key amplifier and connect it to the upper bracket.
      Fig 21: Installing Transponder Key Amplifier
      G01324064Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  34. INSPECT STEERING LOCK OPERATION 
    1. Check that the steering mechanism is activated when removing the key.
    2. Check that the steering mechanism is deactivated when inserting the key and turning it to ACC position.
      Fig 22: Inspecting Steering Lock Operation
      G01324065Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  35. INSTALL STEERING COLUMN BRACKET ASSY UPPER 
    1. Temporarily install the steering column bracket assy upper and steering column upper clamp with the 2 new tapered-head bolts.
    2. Tighten the 2 tapered-head bolts until the bolt heads break off.
      Fig 23: Tightening Tapered-Head Bolts Until Bolt Heads Break Off
      G01324066Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  36. INSTALL STEERING INTERMEDIATE SHAFT ASSY 
    1. Install the steering intermediate shaft assy and steering shaft thrust stopper to the tilt steering gear assy with the bolt.

      Torque: 36 N.m (370 kgf.cm, 26 ft.lbf) 

      Fig 24: Installing Steering Intermediate Shaft Assy
      G01324067Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  37. INSTALL TILT STEERING GEAR ASSY W/MOTOR 
    1. Install the steering column assy with the steering intermediate shaft assy with the 4 steering column set nuts.

      Torque: 26 N.m (270 kgf.cm, 20 ft.lbf) 

    2. Connect the wire harness to the steering column assy.
    3. Connect each of the connectors to the steering column assy.
  38. INSTALL STEERING COLUMN HOLE COVER 
    1. Install the steering column hole cover with the 4 clips.
    2. Install the heater to register duct to the heater unit.
      Fig 25: Installing Steering Column Hole Cover With Clips
      G01324068Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  39. INSTALL STEERING INTERMEDIATE SHAFT NO. 2 
    1. Align the matchmarks on the power steering gear assy and steering intermediate shaft No. 2.
    2. Install the steering intermediate shaft No. 2 to the steering gear box with the bolt.

      Torque: 36 N.m (370 kgf.cm, 26 ft.lbf) 

      Fig 26: Aligning Matchmarks On Power Steering Gear Assy And Steering Intermediate Shaft
      G01324069Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      When replacing the gear box with a new one, be sure to align the matchmarks with the protrusion to install.

    3. Align the notch on the power steering gear box assy and steering intermediate shaft No. 2.
    4. Install the steering intermediate shaft No. 2 to the steering gear box with the bolt.
  40. INSTALL STEERING INTERMEDIATE SHAFT COVER 
    1. Install the steering intermediate shaft cover with the 4 bolts.

      Torque: 5 N.m (50 kgf.cm, 44 in.lbf) 

      Fig 27: Installing Steering Intermediate Shaft Cover With Bolts
      G01324070Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  41. INSTALL STEERING SLIDING YOKE 
    1. Install the steering sliding yoke to the steering column assy and slide it upward.
    2. Install the steering sliding yoke to the intermediate shaft No. 2 with the 2 bolts.

      Torque: 36 N.m (370 kgf.cm, 27 ft.lbf) 

      Fig 28: Installing Steering Sliding Yoke To Intermediate Shaft With Bolts
      G01324071Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  42. INSTALL ENGINE UNDER COVER ASSY REAR 
    1. Install the engine under cover assy rear with the 4 bolts.

      Torque: 29 N.m (300 kgf.cm, 22 ft.lbf) 

  43. INSTALL ENGINE UNDER COVER SUB-ASSY NO. 1 
    1. Install the engine under cover sub-assy No. 1 with the 4 bolts.

      Torque: 29 N.m (300 kgf.cm, 22 ft.lbf) 

  44. INSTALL TURN SIGNAL SWITCH ASSY 
    1. Install the turn signal switch assy with the 3 screws.
    2. Connect the 3 connectors to the turn signal switch assy.
      Fig 29: Installing Turn Signal Switch Assy With Screws
      G01324072Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  45. INSTALL SPIRAL CABLE SUB-ASSY 
    1. Check that the front wheels are facing straight ahead.
    2. Turn the spiral cable counterclockwise by hand until it becomes harder to turn.
    3. Then rotate the spiral cable clockwise about 2.5 turns to align the mark.

      HINT:

      The spiral cable will rotate about 2.5 turns to either left or right of the center.

    4. Install the spiral cable with the 4 screws.
    5. Connect the 2 connectors to the spiral cable sub-assy.
      Fig 30: Installing Spiral Cable With Screws
      G01324073Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Install the steering column cover upper and lower with the 3 screws.
      Fig 31: Installing Steering Column Cover Upper And Lower With Screws
      G01324074Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  46. INSTALL INSTRUMENT PANEL LOWER LH 
  47. INSTALL INSTRUMENT PANEL SAFETY PAD SUB-ASSY 
  48. INSTALL COWL SIDE TRIM BOARD LH 
  49. INSTALL FRONT FLOOR FOOTREST 
  50. INSTALL FRONT DOOR SCUFF PLATE LH 
  51. INSTALL STEERING WHEEL ASSY 
    1. Align the matchmarks on the steering wheel and main shaft assy.
    2. Install the steering set nut.

      Torque: 50 N.m (510 kgf.cm, 37 ft.lbf) 

    3. W/steering switch

      Connect the connector.

  52. INSTALL HORN BUTTON ASSY 
    NOTE:
    • Never use airbag parts from another vehicle. When replacing parts, replace with new ones. 
    • Make sure the horn button assy is installed to the specified torque. 
    • If the horn button assy has been dropped, or there are cracks, dents or other defects in the case or connector, replace the horn button assy with a new one. 
    • When installing the horn button assy, take care that the wirings do not interfere with other parts and are not pinched between other parts. 
    1. Connect the horn ground harness to the horn button assy. 
    2. Connect the 2 airbag connectors.
    3. Install the horn button assy after confirming that the circumference groove of torx screw is caught on the screw case.
    4. Using a torx socket wrench (Torx socket wrench (T=30), torque the 2 screws.

      Torque: 8.8 N.m (90 kgf.cm, 78 in.lbf) 

      Fig 32: Connecting Airbag Connectors
      G01324075Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  53. INSTALL STEERING WHEEL COVER LOWER NO. 2 
  54. INSTALL STEERING WHEEL COVER LOWER NO. 3 
  55. CHECK FRONT WHEELS FACING STRAIGHT AHEAD 
  56. INSTALL BATTERY NEGATIVE TERMINAL 
  57. INSPECT SRS WARNING LIGHT (See  SYSTEM OPERATION CHECK  ) 
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