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Steering Column: Overhaul

  1. PRECAUTION (See  AIR BAG SAFETY PRECAUTIONS  ) 
  2. DISCONNECT BATTERY NEGATIVE TERMINAL 
  3. PLACE FRONT WHEELS FACING STRAIGHT AHEAD 
  4. REMOVE HORN BUTTON ASSEMBLY 
    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: Removing Horn Button Assembly
      G02825373Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Pull out the horn button assembly 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 assembly, take care not to pull the airbag wire harness.
    Fig 2: Disconnecting Airbag Connector
    G02825374Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    CAUTION:
    • When storing the horn button assembly, keep the upper surface of the pad facing upward.
    • Never disassemble the horn button assembly.
    Fig 3: Placing Horn Button Assembly Upward Pad
    G02825375Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE STEERING WHEEL ASSEMBLY 
    1. Disconnect the connector.
    2. Remove the steering wheel assembly set nut.
    3. Place matchmarks on the steering wheel assembly and main shaft assembly.
    4. Using SST, remove the steering wheel assembly.

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

    Fig 4: Removing Steering Wheel Assembly
    G02825376Courtesy 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 ASSEMBLY (A/T TRANSAXLE) 
    1. With the key in ACC, push the claw and pull out the floor shift parking lock cable.
    Fig 5: Disconnecting Floor Shift Parking Lock Cable Assembly
    G02825377Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE SPIRAL CABLE SUB-ASSY 
  9. REMOVE HEADLAMP DIMMER SWITCH ASSEMBLY 
    1. Disconnect the connector and remove the headlamp dimmer switch assembly.
  10. REMOVE WINDSHIELD WIPER SWITCH ASSEMBLY 
    1. Disconnect the connector and remove the windshield wiper switch assembly.
  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
    G02825378Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE STEERING COLUMN ASSEMBLY 
    1. Disconnect the connectors and wire harness clamps from the steering column assembly.
    2. Remove the 3 bolts and steering column assembly.
    Fig 7: Removing Wire Harness Clamp
    G02825379Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. REMOVE STEERING COLUMN UPPER W/SWITCH BRACKET ASSEMBLY 
    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 assembly.
    Fig 8: Removing Bolts From Steering Column
    G02825380Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. REMOVE STEERING COLUMN CLAMP UPPER 
  16. REMOVE IGNITION SWITCH LOCK CYLINDER ASSEMBLY 
    1. Place the ignition switch lock cylinder assembly at the ACC position.
    2. Push down the stop pin with a screwdriver, and pull out the cylinder assembly.
    Fig 9: Removing Ignition Switch Lock Cylinder Assembly
    G02825381Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. REMOVE UN-LOCK WARNING SWITCH ASSEMBLY 
    1. Disconnect the un-lock warning switch assembly connector from the ignition or starter switch assembly.
    2. Remove the un-lock warning switch assembly.
    Fig 10: Removing Un-Lock Warning Switch Assembly
    G02825382Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. REMOVE IGNITION OR STARTER SWITCH ASSEMBLY 
    1. Remove the 2 screws and ignition or starter switch assembly from the steering column bracket assembly.
  19. INSTALL IGNITION OR STARTER SWITCH ASSEMBLY 
    1. Install the ignition or starter switch assembly to the steering column bracket assembly with the 2 screws.
  20. INSTALL UN-LOCK WARNING SWITCH ASSEMBLY 
    1. Install the un-lock warning switch assembly.
    2. Connect the un-lock warning switch assembly connector to the ignition or starter switch assembly.
    Fig 11: Installing Un-Lock Warning Switch Assembly
    G02825383Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  21. INSTALL IGNITION SWITCH LOCK CYLINDER ASSEMBLY 
    1. Make sure that the ignition switch lock cylinder assembly is at the ACC position.
    2. Install the ignition switch lock cylinder assembly.
  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 ASSEMBLY 
    1. Temporarily install the steering column upper w/switch bracket assembly 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 Bolts
    G02825384Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  24. INSTALL STEERING COLUMN ASSEMBLY 
    1. Install the steering column assembly 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 Assembly
    G02825385Courtesy 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
    G02825386Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  26. INSTALL COLUMN HOLE COVER SILENCER SHEET 
  27. INSTALL WINDSHIELD WIPER SWITCH ASSEMBLY 
    1. Install the windshield wiper switch assembly and connect the connector.
  28. INSTALL HEADLAMP DIMMER SWITCH ASSEMBLY 
    1. Install the headlamp dimmer switch assembly and connect the connector.
  29. PLACE FRONT WHEELS FACING STRAIGHT AHEAD 
  30. INSTALL SPIRAL CABLE SUB-ASSY 
  31. CONNECT FLOOR SHIFT PARKING LOCK CABLE ASSEMBLY (A/T TRANSAXLE) 
    1. With the key in ACC, push into the floor shift parking lock cable and install it.
    Fig 15: Connecting Floor Shift Parking Lock Cable Assembly
    G02825387Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. CONNECT CHECK KEY INTERLOCK OPERATION 
  33. INSTALL COVER SET STEERING COLUMN 
    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: Checking Battery Negative Terminal
      G02825388Courtesy 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: Locating Clock Wire Direction
    G02825389Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  35. INSTALL STEERING WHEEL ASSEMBLY 
    1. Align the matchmark with the one on the steering wheel assembly and steering main shaft assembly.
    2. Install the steering wheel assembly with the set nut.

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

    3. Connect the connector.
  36. INSPECT HORN BUTTON ASSEMBLY (See  AIR BAG RESTRAINT SYSTEMS  ) 
  37. INSTALL HORN BUTTON ASSEMBLY 
    NOTE:
    • Never use the airbag parts removed from another vehicle. When replacing parts, replace with new ones.
    • Make sure that the horn button assembly is installed to the specified torque.
    • If the horn button assembly has been dropped, or there are cracks, dents or other defects in the case or connector, replace the horn button assembly with a new one.
    • When installing the horn button assembly, 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 assembly 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
    G02825390Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  38. STEERING WHEEL CENTER POINT 
  39. INSPECT SRS WARNING LIGHT (See  SYSTEM OPERATION CHECK  ) 
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