STEERING COLUMN ASSEMBLY REASSEMBLY

Note


  • When using a vise, do not overtighten it.

  • Do not drop the power steering motor assembly, strike it with tools or subject it to impacts.

  • If the power steering motor assembly is subjected to an impact, replace it with a new one.

  • Do not pull the wire harness of the electric power steering column sub-assembly.

  • Do not allow any moisture to come into contact with the power steering motor assembly.

  • Do not loosen any bolts not mentioned in the procedure.


  1. INSTALL IGNITION OR STARTER SWITCH ASSEMBLY (w/o Smart Key System)


    1. Engage the 2 claws to install the ignition or starter switch assembly to the steering column upper bracket assembly.

  2. INSTALL IGNITION SWITCH LOCK CYLINDER ASSEMBLY (w/o Smart Key System)


    1. A01HZMAE01
      Text in Illustration
      *a LOCK
      *b ACC

      Make sure that the ignition switch lock cylinder assembly is in the ACC position.

    2. Install the ignition switch lock cylinder assembly to the steering column upper bracket assembly.

    3. Make sure that the ignition switch lock cylinder assembly is securely installed.

  3. INSTALL KEY INTERLOCK SOLENOID (w/o Smart Key System)


    1. Engage the claw to install the key interlock solenoid to the steering column upper bracket assembly.

    2. Install the screw.

  4. INSTALL UNLOCK WARNING SWITCH ASSEMBLY (w/o Smart Key System)


    1. A01I1Q0

      Slide the unlock warning switch assembly and engage the 2 claws to install the unlock warning switch assembly to the steering column upper bracket assembly as shown in the illustration.

  5. INSTALL TRANSPONDER KEY COIL (w/o Smart Key System)


    1. A01I11T

      Align the transponder key coil with the steering column upper bracket assembly. Tilt the transponder key coil slightly and slide it into position.

    2. Push the transponder key coil, and engage the 2 claws to install the transponder key coil to the steering column upper bracket assembly.

  6. INSPECT STEERING LOCK OPERATION (w/o Smart Key System)


    1. A01HXFT

      Check that the steering lock mechanism is activated when the key is removed.

    2. A01I07BE01
      Text in Illustration
      *a LOCK
      *b ACC

      Check that the steering lock mechanism is deactivated when the key is inserted and turned to the ACC position.

      Tech Tips

      If there is any abnormality, replace the ignition switch lock cylinder assembly or steering column upper bracket assembly.

  7. INSTALL POWER STEERING ECU WITH MOTOR ASSEMBLY (for 2AR-FE)


    1. Install a new electric power steering motor shaft damper to the electric power steering column sub-assembly.

    2. Install a new electric power steering motor shaft spacer to the electric power steering column sub-assembly.

    3. A01HYNKE01

      Temporarily install the power steering ECU with motor assembly to the electric power steering column sub-assembly with 3 bolts.

      Note


      • Bolt (A) is shorter than bolt (B). Make sure to install them to the correct positions.

      • When temporarily installing the 3 bolts to the power steering motor assembly, do not tighten them all the way down.

    4. A01HY2GE02
      Text in Illustration
      *1 Service Nut

      Install the 2 service nuts to the steering main shaft.

      Recommended service nut
      Thread diameter
      12.0 mm (0.472 in.)
      Thread pitch
      1.25 mm (0.0492 in.)

    5. Simultaneously to rotate the service nut that was installed first counterclockwise and rotate the service nut that was installed second clockwise to lock them.

      Note

      Do not apply excess torque to the service nuts by using a tool such as an impact wrench.

      Tech Tips

      These nuts are installed to turn the steering main shaft. They should be removed after inspecting the steering main shaft rotating torque.

    6. A01HZ13E01
      Text in Illustration
      *1 Aluminum Plate
      *2 Wooden Block

      Secure the steering column assembly in a vice using aluminum plates and wooden block as shown in the illustration.

      Note


      • Do not overtighten the vice, as the steering column assembly may become deformed.

      • Secure the steering column assembly so that power steering ECU assembly with motor is directly upright.

      • Support the steering column assembly with a wooden block or similar item to ensure that it does not fall.

    7. A01HZ4S

      Turn the steering main shaft once 180 degrees to the left and then 180 degrees to the right at a speed of 60 rpm, and repeat 2 to 3 times to adjust the axis of the power steering ECU with motor assembly.

    8. Tighten the 3 bolts.

      Torque:
      19 N*m  { 189 kgf*cm, 14 ft.*lbf }

      Note

      Make sure not to move the power steering motor assembly after adjusting the axis.

    9. A01HY4N

      Measure the turning torque of the steering main shaft.

      Torque:
      Turning torque
      1.0 to 1.8 N*m  { 10 to 18 kgf*cm, 9 to 15 in.*lbf }

      Note

      Ensure that there is no abnormal resistance during rotation.

      If the torque is not as specified, readjust the axis of the power steering ECU with motor assembly.

    10. Remove the 2 service nuts from the steering main shaft.

    11. Connect the connector to the power steering ECU with motor assembly.

  8. INSTALL ECU WIRE SUB-ASSEMBLY (for 2AR-FE)


    1. Engage the 2 wire harness clamps to install the ECU wire sub-assembly.

    2. Connect the 2 connectors to the power steering ECU with motor assembly.

  9. INSTALL POWER STEERING ECU PROTECTOR (for 2AR-FE)


    1. Install a new power steering ECU protector to the power steering ECU with motor assembly.

  10. INSTALL POWER STEERING ECU ASSEMBLY (for 2GR-FE)


    1. Install the power steering ECU assembly to the power steering motor assembly with the 2 new bolts.

      Torque:
      20 N*m  { 204 kgf*cm, 15 ft.*lbf }

    2. Install the 3 new bolts.

      Torque:
      3.2 N*m  { 33 kgf*cm, 28 in.*lbf }

    3. Engage the 4 claws to install the new protector.

  11. INSTALL POWER STEERING ECU WITH MOTOR ASSEMBLY (for 2GR-FE)


    1. A01HY2GE02
      Text in Illustration
      *1 Service Nut

      Install the 2 service nuts to the steering main shaft.

      Recommended service nut
      Thread diameter
      12.0 mm (0.472 in.)
      Thread pitch
      1.25 mm (0.0492 in.)

    2. Simultaneously to rotate the service nut that was installed first counterclockwise and rotate the service nut that was installed second clockwise to lock them.

      Note

      Do not apply excess torque to the service nuts by using a tool such as an impact wrench.

      Tech Tips

      These nuts are installed to turn the steering main shaft. They should be removed after inspecting the steering main shaft rotating torque.

    3. Install a new O-ring to the power steering ECU with motor assembly.

    4. A01HZ7G

      Apply grease to the splines of the power steering ECU with motor assembly.

      Note

      First wipe off the existing grease from the splines, and then apply the dedicated grease supplied with a new power steering motor assembly or electric power steering column sub-assembly.

    5. Insert the power steering ECU with motor assembly into the splines of the electric power steering column sub-assembly.

      Note

      Do not damage the gears.

    6. A01HZYSE01
      Text in Illustration
      *1 Aluminum Plate
      *2 Wooden Block

      Secure the steering column assembly in a vice using aluminum plates and wooden block as shown in the illustration.

      Note


      • Do not overtighten the vice, as the steering column assembly may become deformed.

      • Secure the steering column assembly so that power steering motor assembly is directly upright.

      • Support the steering column assembly with a wooden block or similar item to ensure that it does not fall.

    7. A01HZ0G

      Temporarily install the power steering ECU with motor assembly to the electric power steering column sub-assembly with 2 new bolts while rotating the steering main shaft at approximately 4 rpm.

      Note

      When temporarily installing the 2 bolts to the power steering motor assembly, do not tighten them all the way down.

    8. Rotate the steering main shaft 120 to 240 degrees at approximately 4 rpm.

    9. Rotate the steering main shaft 180 degrees clockwise and counterclockwise at approximately 4 rpm and repeat this operation 2 or 3 times to align the power steering ECU with motor assembly.

    10. Tighten the 2 bolts.

      Torque:
      19 N*m  { 194 kgf*cm, 14 ft.*lbf }

      Note

      Make sure not to move the power steering motor assembly after adjusting the axis.

    11. A01HY1R

      Measure the turning torque of the steering main shaft.

      Torque:
      Turning torque
      1.2 to 1.7 N*m  { 12 to 17 kgf*cm, 10 to 15 in.*lbf }

      Note

      Ensure that there is no abnormal resistance during rotation.

      If the torque is not as specified, readjust the axis of the power steering ECU with motor assembly.

    12. Remove the 2 service nuts from the steering main shaft.

    13. Connect the 2 connectors to the power steering ECU assembly.

  12. INSTALL ECU WIRE SUB-ASSEMBLY (for 2GR-FE)


    1. Engage the 2 wire harness clamps to install the new ECU wire sub-assembly.

    2. Connect the 2 connectors to the power steering ECU with motor assembly.

  13. INSTALL POWER STEERING ECU PROTECTOR (for 2GR-FE)


    1. Engage the 2 claws to install a new power steering ECU protector to the power steering ECU with motor assembly.

  14. INSTALL STEERING COLUMN UPPER WITH SWITCH BRACKET ASSEMBLY (w/o Smart Key System)


    1. Secure the steering column assembly in a vise.

    2. A01HZGH

      Temporarily install the steering column upper with switch bracket assembly to the steering column assembly with 2 new tapered-head bolts.

    3. Tighten the 2 tapered-head bolts until the bolt heads break off.

  15. INSTALL STEERING LOCK ACTUATOR ASSEMBLY (w/ Smart Key System)

    Tech Tips

    When replacing the steering lock actuator assembly, perform initialization Click here.


    1. Secure the steering column assembly in a vise.

    2. A01HYIY

      Temporarily install the steering lock actuator assembly to the steering column assembly with 2 new tapered-head bolts.

    3. Tighten the 2 tapered-head bolts until the bolt heads break off.