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Steering Column ASSY: Overhaul

  1. PRECAUTION 
  2. DISCONNECT BATTERY NEGATIVE TERMINAL 
  3. INSPECT PLACE FRONT WHEELS FACING STRAIGHT AHEAD 
  4. 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, loosen the 2 Torx screws until the groove along the screw circumference catches on the screw case.
      Fig 1: Loosening Torx Screws
      G02635051Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Pull out the horn button assy from the steering wheel.
    3. Using a screwdriver, release the lock part of each airbag connector and disconnect the 2 airbag connectors.
      NOTE: When removing the horn button assy, take care not to pull the airbag wire harness.
      Fig 2: Disconnecting Airbag Connectors
      G02635052Courtesy 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: Precaution For Handling Upper Surface Of Pad
    G02635053Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE STEERING WHEEL ASSY 
    1. Disconnect the 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
      G02635054Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE STEERING COLUMN COVER 
    1. Remove the 3 screws and steering column cover.
  7. DISCONNECT FLOOR SHIFT PARKING LOCK CABLE ASSY (A/T TRANSAXLE) 
    1. With the key in ACC, push the claw and pull out the floor shift parking lock cable.
      Fig 5: Removing Floor Shift Parking Lock Cable
      G02635055Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE SPIRAL CABLE SUB-ASSY 
  9. REMOVE HEADLAMP DIMMER SWITCH ASSY 
    1. Disconnect the connector and remove the headlamp dimmer switch assy.
  10. REMOVE WINDSHIELD WIPER SWITCH ASSY 
    1. Disconnect the connector and remove the windshield wiper switch assy.
  11. REMOVE COLUMN HOLE COVER SILENCER SHEET 
  12. DISCONNECT STEERING INTERMEDIATE SHAFT 
    1. Place matchmarks on the sliding yoke and steering intermediate shaft.
    2. Loosen the bolt A and remove the bolt B, then disconnect the steering intermediate shaft.
      Fig 6: Disconnecting Steering Intermediate Shaft
      G02635056Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE STEERING COLUMN ASSY 
    1. Disconnect the connectors and wire harness clamps from the steering column assy.
    2. Remove the 3 bolts and steering column assy.
      Fig 7: Removing Steering Column Assy
      G02635057Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. REMOVE STEERING COLUMN UPPER W/SWITCH BRACKET ASSY 
    1. Using a centering punch, mark the center of the 2 tapered-head bolts.
    2. Using a 3 - 4 mm (0.12 - 0.16 in.) drill, drill into the 2 bolts.
    3. Using a screw extractor, remove the 2 bolts and steering column upper w/switch bracket assy.
      Fig 8: Removing Steering Column Upper W/Switch Bracket Assy
      G02635058Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. REMOVE STEERING COLUMN CLAMP UPPER 
  16. REMOVE IGNITION SWITCH LOCK CYLINDER ASSY 
    1. Place the ignition switch lock cylinder assy at the ACC position.
    2. Push down the stop pin with a screwdriver, and pull out the cylinder assy.
      Fig 9: Removing Ignition Switch Lock Cylinder Assy
      G02635059Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. REMOVE UNLOCK WARNING SWITCH ASSY 
    1. Disconnect the unlock warning switch assy connector from the ignition or starter switch assy.
    2. Remove the unlock warning switch assy.
      Fig 10: Removing Unlock Warning Switch Assy
      G02635060Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. REMOVE IGNITION OR STARTER SWITCH ASSY 
    1. Remove the 2 screws and ignition or starter switch assy from the steering column bracket assy.
  19. INSTALL IGNITION OR STARTER SWITCH ASSY 
    1. Install the ignition or starter switch assy to the steering column bracket assy with the 2 screws.
  20. INSTALL UNLOCK WARNING SWITCH ASSY 
    1. Install the unlock warning switch assy.
    2. Connect the unlock warning switch assy connector to the ignition or starter switch assy.
      Fig 11: Installing Unlock Warning Switch Assy
      G02635061Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  21. INSTALL IGNITION SWITCH LOCK CYLINDER ASSY 
    1. Make sure that the ignition switch lock cylinder assy is at the ACC position.
    2. Install the ignition switch lock cylinder assy.
  22. INSPECT STEERING LOCK OPERATION 
    1. Check that the steering lock mechanism is activated when removing the key.
    2. Check that the steering lock mechanism is deactivated when inserting the key and turning it to ACC position.
  23. INSTALL STEERING COLUMN UPPER W/SWITCH BRACKET ASSY 
    1. Temporarily install the steering column upper w/switch bracket assy and steering column upper clamp with 2 new tapered-head bolts.
    2. Tighten the 2 tapered-head bolts until the bolt heads break off.
      Fig 12: Installing Steering Column Upper W/Switch Bracket Assy
      G02635062Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  24. INSTALL STEERING COLUMN ASSY 
    1. Install the steering column assy with the 3 bolts.

      Torque: 21 N.m (210 kgf.cm, 15 ft.lbf) 

    2. Connect the connectors and wire harness clamps.
      Fig 13: Installing Steering Column Assy
      G02635063Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  25. CONNECT STEERING INTERMEDIATE SHAFT 
    1. Align the matchmarks on the sliding yoke and steering intermediate shaft.
    2. Install the bolt B and torque the bolt A.

      Torque: 35 N.m (360 kgf.cm, 26 ft.lbf) 

      Fig 14: Connecting Steering Intermediate Shaft
      G02635064Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  26. INSTALL COLUMN HOLE COVER SILENCER SHEET 
  27. INSTALL WINDSHIELD WIPER SWITCH ASSY 
    1. Install the windshield wiper switch assy and connect the connector.
  28. INSTALL HEADLAMP DIMMER SWITCH ASSY 
    1. Install the headlamp dimmer switch assy and connect the connector.
  29. PLACE FRONT WHEELS FACING STRAIGHT AHEAD 
  30. INSTALL SPIRAL CABLE SUB-ASSY 
  31. CONNECT FLOOR SHIFT PARKING LOCK CABLE ASSY (A/T TRANSAXLE) 
    1. With the key in ACC, push into the floor shift parking lock cable and install it.
      Fig 15: Installing Floor Shift Parking Lock Cable
      G02635065Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. CONNECT CHECK KEY INTERLOCK OPERATION 
  33. INSTALL STEERING COLUMN COVER 
    1. Install the steering column cover with the 3 screws.
  34. CENTER SPIRAL CABLE 
    1. Check that the ignition switch is at OFF.
    2. Check that the battery negative terminal is disconnected.
      NOTE: Do not start the operation for 90 seconds after removing the terminal.
    3. Turn the cable counterclockwise by hand until it becomes harder to turn.
      Fig 16: Turning Center Spiral Cable Counterclockwise
      G02635066Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Then rotate the cable clockwise about 2.5 turns to align the marks.

      HINT:

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

      Fig 17: Turning Center Spiral Cable Clockwise
      G02635067Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  35. INSTALL STEERING WHEEL ASSY 
    1. Align the matchmark with the one on the steering wheel assy and steering main shaft assy.
    2. Install the steering wheel assy with the set nut.

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

    3. Connect the connector.
  36. INSPECT HORN BUTTON ASSY (See  ON-VEHICLE INSPECTION  ) 
  37. INSTALL HORN BUTTON ASSY 
    NOTE:
    • Never use the airbag parts removed from another vehicle. When replacing parts, replace with new ones.
    • Make sure that 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 so that the wirings do not interfere with other parts and that they are not pinched between other parts.
    1. Connect the 2 airbag connectors.
    2. Install the horn button assy after confirming that the circumference groove of the Torx screws is caught on the screw case.
    3. Using a Torx socket wrench, torque the 2 Torx screws.

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

      Fig 18: Tightening Torx Screws
      G02635068Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  38. STEERING WHEEL CENTER POINT 
  39. INSPECT SRS WARNING LIGHT (See  DIAGNOSIS SYSTEM  ) 
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