2008 Toyota Prius BaseFACTORY OEM SERVICE PROCEDURE

Steering Column Assembly: Installation

  1. INSTALL STEERING COLUMN ASSEMBLY 
    1. Install the steering column with the 3 bolts.

      Torque: 25 N*m (255 kgf*cm, 18 ft.*lbf) 

      Fig 1: Installing Steering Column Bolts
      G04474930Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the connectors and wire harness clamps to the steering column.
  2. INSTALL STEERING SLIDING YOKE SUB-ASSEMBLY 
    1. Temporarily install the steering sliding yoke sub-assembly to the steering intermediate shaft with the bolt.
      Fig 2: Identifying Steering Sliding Yoke Bolt
      G04474931Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSTALL STEERING INTERMEDIATE SHAFT SUB-ASSEMBLY 
    1. Align the matchmarks on the steering intermediate shaft assembly and steering column and install them with the bolt labeled C.

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

    2. Align the matchmark on the steering intermediate shaft and steering intermediate shaft and install them with the bolt labeled B.

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

    3. Tighten the bolt labeled A on the steering sliding yoke.
      Fig 3: Identifying Matchmarks & Bolts
      G04474932Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

  4. INSTALL COLUMN HOLE COVER SILENCER SHEET 
  5. INSTALL FRONT FLOOR FOOTREST LH 
    1. Attach the 2 clips to install the front floor footrest.
  6. INSTALL POWER STEERING ECU ASSEMBLY 
    1. Connect the 2 steering column connectors to the power steering ECU.
    2. Install the clamp holding the power steering motor and torque sensor wire harness on the bottom surface of the power steering computer.
    3. Install the torque sensor wire harness clamp to the instrument panel reinforcement.
    4. Make sure that the power steering motor and torque sensor wire harnesses do not interfere with other parts while tilting up and down the steering column.
    Fig 4: Connecting Steering Column Connectors To Power Steering ECU
    G04474933Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSTALL INSTRUMENT PANEL PASSENGER AIRBAG ASSEMBLY (See  INSTALLATION  ) 
  8. DISCONNECT PASSENGER AIRBAG CONNECTOR (See  INSTALLATION  ) 
  9. INSTALL FRONT PILLAR GARNISH ASSEMBLY LH (See  INSTALLATION  ) 
  10. INSTALL FRONT PILLAR GARNISH ASSEMBLY RH (See  INSTALLATION  ) 
  11. INSTALL FRONT PILLAR GARNISH CORNER PIECE LH (See  INSTALLATION  ) 
  12. INSTALL FRONT PILLAR GARNISH CORNER PIECE RH (See  INSTALLATION  ) 
  13. INSTALL NO. 1 INSTRUMENT PANEL SPEAKER PANEL SUB-ASSEMBLY (w/ JBL Sound System) 
  14. INSTALL GLOVE COMPARTMENT DOOR (see  INSTALLATION  ) 
  15. INSTALL GLOVE COMPARTMENT DOOR ASSEMBLY (see  INSTALLATION  ) 
  16. INSTALL GLOVE COMPARTMENT DOOR STOPPER SUB-ASSEMBLY 
  17. INSTALL MULTI-DISPLAY (See  INSTALLATION  ) 
  18. INSTALL NO. 2 INSTRUMENT PANEL REGISTER ASSEMBLY (see  INSTALLATION  ) 
  19. INSTALL NO. 4 INSTRUMENT PANEL REGISTER ASSEMBLY (see  INSTALLATION  ) 
  20. INSTALL NO. 3 INSTRUMENT PANEL REGISTER ASSEMBLY (See  INSTALLATION  ) 
  21. INSTALL INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY (See  INSTALLATION  ) 
  22. INSTALL NO. 1 INSTRUMENT PANEL REGISTER ASSEMBLY (See  INSTALLATION  ) 
  23. INSTALL COWL SIDE TRIM BOARD RH (See  INSTALLATION  ) 
  24. INSTALL COWL SIDE TRIM BOARD LH (See  INSTALLATION  ) 
  25. INSTALL FRONT DOOR INSIDE SCUFF PLATE LH (See  INSTALLATION  ) 
  26. INSTALL FRONT DOOR INSIDE SCUFF PLATE RH (See  INSTALLATION  ) 
  27. INSTALL SPIRAL CABLE SUB-ASSEMBLY (See  INSTALLATION  ) 
  28. INSPECT SPIRAL CABLE SUB-ASSEMBLY (See  INSPECTION  ) 
  29. INSTALL TURN SIGNAL SWITCH ASSEMBLY 
    1. Install the turn signal switch to the steering column with the clamp.
  30. INSTALL STEERING COLUMN COVER 
    1. Engage the 4 claws to install the steering column upper cover and steering column lower cover.

      HINT:

      Fully tilt down the steering column when installing the steering column upper cover and fully tilt it up when installing the steering column cover.

  31. INSTALL TILT LEVER BRACKET 
    1. Install the tilt level bracket with the 2 screws.

      Torque: 2.0 N*m (20 kgf*cm, 18 in.*lbf) 

  32. INSPECT STEERING WHEEL CENTER POINT 

    HINT:

    When the steering wheel is not properly centered, remove and refit to center.

  33. INSTALL STEERING WHEEL ASSEMBLY 
    1. Align the matchmarks on the steering wheel and steering main shaft.
    2. Install the steering wheel with the set nut.

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

  34. INSTALL STEERING PAD ASSEMBLY (See  INSTALLATION  ) 
  35. CONNECT CABLE TO BATTERY NEGATIVE TERMINAL 
  36. INSPECT STEERING PAD ASSEMBLY 
    1. Inspect the steering pad (see ON-VEHICLE INSPECTION ).
  37. INSTALL NO. 3 STEERING WHEEL LOWER COVER 
  38. INSTALL NO. 2 STEERING WHEEL LOWER COVER 
  39. INSTALL REAR NO. 3 FLOOR BOARD ASSEMBLY 
  40. INSTALL REAR DECK FLOOR BOX 
  41. INSTALL REAR NO. 2 FLOOR BOARD 
  42. INSPECT SRS WARNING LIGHT 
    1. Inspect SRS warning light (see DIAGNOSIS SYSTEM ).
  43. PERFORM CALIBRATION 
    1. Perform CALIBRATION .
  44. PERFORM INITIALIZATION 
    1. Perform INITIALIZATION .
      NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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