STEERING COLUMN ASSEMBLY REASSEMBLY

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   INSTALL POWER STEERING ECU WITH MOTOR ASSEMBLY

   
   

   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. 

      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 ECU with motor assembly, do not tighten them all the way down.

   4. 

      Install the 2 service nuts to the steering main shaft.

      Table 1. Text in Illustration

      *1	Service Nut

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

   5. Simultaneously 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.

      Tip:

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

   6. 

      Securely set the steering column assembly on a wooden block or similar item.

      Table 2. Text in Illustration

      *1	Wooden Block

      Note:
      

      • Be sure to hold the steering column assembly by hand so that it will not move while servicing.

      • Make sure that the power steering motor assembly is facing upward.

   7. 

      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.

      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. 

      Measure the turning torque of the steering main shaft.

      Turning torque
      1.1 N*m	1.9 N*m	12 kgf*cm	19 kgf*cm	10 in.*lbf	17 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.

2. Click here

   INSTALL ECU WIRE SUB-ASSEMBLY

   
   

   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.

3. Click here

   INSTALL POWER STEERING ECU PROTECTOR

   
   

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

4. Click here

   INSTALL MULTIPLEX TILT AND TELESCOPIC ECU

   
   

   1. Engage the claw to install the multiplex tilt and telescopic ECU to the electric power steering column sub-assembly.

5. Click here

   INSTALL STEERING LOCK ACTUATOR ASSEMBLY

   Tip:

   When replacing the steering lock actuator assembly, refer to Service Bulletin.

   
   
   1. 

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

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