Toyota CH-R Service Manual: Inspection

(a) Secure the steering column assembly in a vise using aluminum plates, cloths and wooden blocks.

(b) Install 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.)

(d) Using a torque wrench, turn the steering main shaft at a constant rate of approximately 1 revolution every 4 seconds and measure the preload.

Preload:

1.2 to 2.4 N*m (13 to 24 kgf*cm, 11 to 21 in.*lbf)

If the preload is not as specified, replace the power steering ECU assembly or electric power steering column sub-assembly with a new one.

(a) Check that the 2 bushings are securely installed to the steering column assembly.

If the bushings are deformed, missing or damaged, replace the electric power steering column sub-assembly with a new one.