Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 573

PS-13

Steering Wheel

POWER ASSISTED SYSTEM (POWER STEERING)

2. Steering Wheel

A: REMOVAL

1) Disconnect the ground cable from battery.

2) Set the tire to the straight-ahead position.

3) Remove the airbag module. <Ref. to AB-15, RE-

MOVAL, Driver’s Airbag Module.>
WARNING:

Always refer to “Airbag System” before per-

forming service on the airbag modules. <Ref. to

AB-5, CAUTION, General Description.>

4) Place alignment marks on the steering wheel

and steering shaft.

5) Remove the steering wheel nut, and then draw

out the steering wheel from shaft using steering

puller.

B: INSTALLATION

WARNING:

Always refer to “Airbag System” before per-

forming service on the airbag modules. <Ref. to

AB-5, CAUTION, General Description.>

1) Align the center position of the roll connector.

<Ref. to AB-27, ADJUSTMENT, Roll Connector.>

2) Install each part in the reverse order of removal.
CAUTION:

Insert the roll connector guide pin into the

guide hole on the lower end of the steering

wheel surface. Avoid damaging the pin.
NOTE:

Align the alignment marks on the steering wheel

and steering shaft.
Tightening torque:

39 N·m (4.0 kgf-m, 28.8 ft-lb)

Column cover-to-steering wheel clearance:

2 — 4 mm (0.08 — 0.16 in)

C: INSPECTION

1) Check the steering wheel for deformation. If the

deformation is excessive, replace the steering

wheel.
Specification:
Runout of steering wheel

17 mm (0.67 in) or less

Deflection of steering wheel

6 mm (0.24 in) or less

2) Check the splines on the steering wheel for dam-

age. If the damage is excessive, replace the steer-

ing wheel.

(1) Alignment mark

(1)

PS-00552

PS-14

Universal Joint

POWER ASSISTED SYSTEM (POWER STEERING)

3. Universal Joint

A: REMOVAL

1) Remove the steering wheel. <Ref. to PS-13, RE-

MOVAL, Steering Wheel.>

2) Place alignment marks on the universal joint and

gear box assembly input shaft.

3) Remove the universal joint bolt and remove the

universal joint.

B: INSTALLATION

1) Align the cutout portion at serrated section of the

column shaft (c) and yoke (b), then install the uni-

versal joint into column shaft.
CAUTION:

Be sure to align the protrusion section (a) of the

column shaft side with the cutout (a) of the ser-

ration. If the protrusion is aligned with the other

cutout (d), the universal joint bolt cannot be as-

sembled.

2) Install the universal joint to the serrations of

gearbox assembly by matching alignment marks.

3) Tighten the bolts.
CAUTION:

Excessively large tightening torque of univer-

sal joint bolts may lead to heavy steering wheel

operation.
Tightening torque:

24 N·m (2.4 kgf-m, 17.7 ft-lb)

Clearance between coupling of universal joint

and turbo cover:

15 mm (0.59 in) or more

4) Align the center position of the roll connector.

<Ref. to AB-27, ADJUSTMENT, Roll Connector.>

5) Install the steering wheel. <Ref. to PS-13, IN-

STALLATION, Steering Wheel.>

C: INSPECTION

1) Check for wear, damage or any other faults. Re-

place as necessary
Service limit:

Universal joint play: 0 mm (0 in)

2) Measure the swing torque of universal joint.
Service limit:

Maximum load: 4.5 N (0.46 kgf, 1.01 lbf) or

less

(A) Column shaft side
(B) Gearbox side

PS-00874

PS-01345

(A)

(B)

(a)

(b)

(c)

(a)

(d)

(d)

(1) Play

(1) Yoke

(1)

PS-01207

PS-00034

PS-15

Universal Joint

POWER ASSISTED SYSTEM (POWER STEERING)

Service limit:

Maximum load: 4.5 N (0.46 kgf, 1.01 lbf) or

less

(1) Yoke

PS-00035

PS-16

Steering Column

POWER ASSISTED SYSTEM (POWER STEERING)

4. Steering Column

A: REMOVAL

1) Adjust the tilt position of the steering column to

the highest position and lock the tilt lever.

2) Remove the steering wheel. <Ref. to PS-13, RE-

MOVAL, Steering Wheel.>

3) Remove the universal joint. <Ref. to PS-14, RE-

MOVAL, Universal Joint.>

4) Remove the instrument panel lower cover under.

5) Remove the instrument panel lower cover upper.

6) Remove the one screw which secures the col-

umn cover lower, and then remove the column cov-

er lower.

7) Remove all connectors from the steering col-

umn.

8) Remove the two bolts under instrument panel

securing the steering column.

(1)

Tilt and telescopic steering col-
umn

(2)

Universal joint

(1)

(2)

PS-00876

PS-00798