Page 626 of 2248
1. Supplemental Restraint System
“Airbag”
Airbag system wiring harness is routed near the steering
wheel, steering shaft and column.
WARNING:
All Airbag system wiring harness and connectors
are colored yellow. Do not use electrical test equip-
ment on these circuit.
Be careful not to damage Airbag system wiring har-
ness when servicing the steering wheel, steering shaft
and column.
2. Tilt Steering Column
B4M0554A
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 24±3 (2.4±0.3, 17.4±2.2)
T2: 25±5 (2.5±0.5, 18.1±3.6)
A: REMOVAL
1) Disconnect battery minus terminal.
2) Lift-up vehicle.
3) Remove airbag module. (with airbag model)
5-5 [W3A1].>
WARNING:
Always refer to“5-5 Supplemental Restraint System”
before performing airbag module service (if so
equipped).
10
4-3SERVICE PROCEDURE
1. Supplemental Restraint System“Airbag”- 2. Tilt Steering Column
Page 628 of 2248
C: INSPECTION
1. BASIC INSPECTION
Clean the disassembled parts with a cloth, and check for
wear, damage, or any other faults. If necessary, repair or
replace faulty parts.
Part name Inspection Corrective action
Universal jointFree play
Swinging torque
Yawing torque
looseness
G4M0089Standard value of universal joint free play: 0 mm (0 in)
Max. value of universal joint swinging torque:
0.3 N⋅m (0.03 kg-m, 0.2 ft-lb)
Replace if faulty.
Steering columnOverall length of steering column
Measure overall length of steering column.
Standard overall length of steering column:
B4M0129B
Replace steering column
assembly.
2. AIRBAG MODEL INSPECTION
WARNING:
For airbag module inspection procedures, refer to 5-5
[W207] and [W208].
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4-3SERVICE PROCEDURE
2. Tilt Steering Column
Page 629 of 2248

B4M0555
D: ASSEMBLY
1) Insert combination switch to upper column shaft, and
install lower column cover with tilt lever held in the lowered
position. Then route ignition key harness and combination
switch harness between column cover mounting bosses.
2) Fit upper column cover to lower column cover, and
tighten combination switch and column cover.
Tightening torque:
1.2±0.2 N⋅m (0.12±0.02 kg-m, 0.9±0.1 ft-lb)
CAUTION:
Don’t overtorque screw.
E: INSTALLATION
1) Insert end of steering shaft into toe board grommet.
2) Tighten steering shaft mounting bolts under instrument
panel.
Tightening torque:
25±5 N⋅m (2.5±0.5 kg-m, 18.1±3.6 ft-lb)
3) Connect ignition and combination switch connectors
under instrument panel.
4) Connect airbag system connector at harness spool.
NOTE:
Make sure to apply double lock.
5) Install universal joint.
(1) Align bolt hole on the long yoke side of universal
joint with the cutout at the serrated section of shaft end,
and insert universal joint.
(2) Align bolt hole on the short yoke side of universal
joint with the cutout at the serrated section of gearbox
assembly. Lower universal joint completely.
(3) Temporarily tighten bolt on the short yoke side.
Raise universal joint to make sure the bolt is properly
passing through the cutout at the serrated section.
(4) Tighten bolt on the long yoke side, then that on the
short yoke side.
Tightening torque:
24±3 N⋅m (2.4±0.3 kg-m, 17.4±2.2 ft-lb)
CAUTION:
Make sure that universal joint bolts is tightened
through notch in shaft serration.
Excessively large tightening torque of universal
joint bolts may lead to heavy steering wheel operation.
Standard clearance between gearbox to DOJ:
Over 15 mm (0.59 in)
13
4-3SERVICE PROCEDURE
2. Tilt Steering Column
Page 630 of 2248
G5M0328
6) Align center of roll connector. (with airbag model)
CAUTION:
Ensure that front wheels are set in straight-forward
direction.
7) Set steering wheel to neutral and install it onto steering
shaft.
Tightening torque:
34±5 N⋅m (3.5±0.5 kg-m, 25.3±3.6 ft-lb)
Column cover-to-steering wheel clearance:
2 — 4 mm (0.08 — 0.16 in)
CAUTION:
Insert roll connector guide pin into guide hole on lower
end of surface of steering wheel to prevent damage.
Draw out airbag system connector, horn connector
and cruise control connectors from guide hole of
steering wheel lower end. (with airbag model)
8) Install airbag module to steering wheel. (with airbag
model)
WARNING:
Always refer to 5-5 [W3B1] before performing the ser-
vice operation.
14
4-3SERVICE PROCEDURE
2. Tilt Steering Column
Page 631 of 2248
3. Steering Gearbox (Power Steering
System) [LHD model]
NOTE:
For disassembly and assembly of gearbox unit, refer to
section Control Valve (Power Steering Gearbox).
B4M0131A
1Cotter pin
2Castle nut
3Dust cover
4Clip
5Tie-rod end
6Clip
7Boot
8Clip
9Spacer
10Tie-rod
11Lock washer
12Circlip
13Rack stopper
14Oil seal
15Rack bushing
16O-ring
17Rack
18Back-up washer
19Rack housing
20Adapter
21Clamp
22Lock nut
23Adjusting screw
24Spring
25Sleeve
26C-ring
27Ball bearing
28Valve
29Seal ring
30Packing
31Valve housing
32Dust seal
33Universal joint
34Spring washer
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 13±3 (1.3±0.3, 9.4±2.2)
T2: 24±3 (2.4±0.3, 17.4±2.2)
T3: 25±5 (2.5±0.5, 18.1±3.6)
T4: 27.0±2.5
(2.75±0.25, 19.9±1.8)
T5: 39±10 (4.0±1.0, 29±7)
T6: 59±12 (6.0±1.2, 43±9)
T7: 78±10 (8.0±1.0, 58±7)
T8: 83±5 (8.5±0.5, 61.5±3.6)
15
4-3SERVICE PROCEDURE
3. Steering Gearbox (Power Steering System) [LHD model]
Page 635 of 2248

C: INSPECTION
1) Clean all disassembled parts, and check for wear,
damage, or any other faults, then repair or replace as nec-
essary.
2) When disassembling, check inside of gearbox for water.
If any water is found, carefully check boot for damage,
input shaft dust seal, adjusting screw and boot clips for
poor sealing. If faulty, replace with new parts.
No. Parts Inspection Corrective action
1 Input shaft(1) Bend of input shaft
(2) Damage on serrationIf bend or damage is excessive, replace
entire gearbox.
2 Dust seal(1) Crack or damage
(2) WearIf outer wall slips, lip is worn out or
damage is found, replace it with new one.
3 Rack and pinion Poor mating of rack with pinion(1) Adjust backlash properly.
By measuring turning torque of
gearbox and sliding resistance of rack,
check if rack and pinion engage
uniformly and smoothly with each
other.
(Refer to“Service limit”.)
(2) Keeping rack pulled out all the way so
that all teeth emerge, check teeth for
damage.
Even if abnormality is found in either
(1) or (2), replace entire gearbox.
4 Gearbox unit(1) Bend of rack shaft
(2) Bend of cylinder portion
(3) Crack or damage on cast iron portionReplace gearbox with new one.
(4) Wear or damage on rack bushIf free play of rack shaft in radial direction
is out of the specified range, replace
gearbox with new one. (Refer to“Service
limit”.)
(5) Wear on input shaft bearingIf free plays of input shaft in radial and
axial directions are out of the specified
ranges, replace gearbox with new one.
(Refer to“Service limit”.)
5 Boot Crack, damage or deterioration Replace.
6 Tie-rod(1) Looseness of ball joint
(2) Bend of tie-rodReplace.
7 Tie-rod end Damage or deterioration on dust seal Replace.
8 Adjusting screw spring Deterioration Replace.
9 Boot clip Deterioration Replace.
10 Sleeve Damage Replace.
11 Pipes(1) Damage to flared surface
(2) Damage to flare nut
(3) Damage to pipe
(4) Damage to O-ringReplace.
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4-3SERVICE PROCEDURE
3. Steering Gearbox (Power Steering System) [LHD model]
Page 638 of 2248

G4M0116
4) Press-fit dust seal into gearbox housing while tapping it
via a spanner or the like so that stepping between gearbox
and dust seal is normally 2 mm (0.08 in).
G4M0117
Depth: A
2 mm (0.08 in)
G4M0118
5) Apply grease to sliding surface of sleeve and spring
seat, then insert sleeve into pinion housing. Fit spring into
sleeve screw, pack grease inside of screw, then install the
screw.
1Sleeve
2Spring
3Adjusting screw
G4M0107
6) Fit new lock washer on screwed portion of rack end.
Aligning cut portion of rack and nail of washer, screw in and
tighten ball joint by using ST and spanner.
ST 925700000 WRENCH
Tightening torque (Ball joint):
78±10 N⋅m (8.0±1.0 kg-m, 58±7 ft-lb)
CAUTION:
Pay attention to prevent rack surface on the right side
from being damaged by a tool or the like, otherwise oil
leakage might be caused.
NOTE:
While tightening ball joint, hold rack with ST to prevent it
from revolving.
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4-3SERVICE PROCEDURE
3. Steering Gearbox (Power Steering System) [LHD model]
Page 639 of 2248
G4M0120
7) Bend lock washer using a chisel.
CAUTION:
Be careful not to scratch rack when bending lock
washer.
G4M0122
8) Rack and pinion backlash adjustment
(1) Loosen adjusting screw.
(2) Rotate input shaft so that rack is in the straight
ahead direction.
(3) Apply grease to sleeve.
1Sleeve
2Spring
3Lock nut
4Adjusting screw
G4M0121
(4) Tighten adjusting screw by two threads.
G4M0662
(5) Apply liquid packing to at least 1/3 of entire perim-
eter of adjusting screw thread.
Liquid packing:
THREE BOND 1141
(6) Tighten adjusting screw to 15 N⋅m (1.5 kg-m, 11
ft-lb) and back off 26°.
(7) Install lock nut. While holding adjusting screw with
a wrench, tighten lock nut using ST.
ST 926230000 SPANNER
Tightening torque (Lock nut):
39±10 N⋅m (4.0±1.0 kg-m, 29±7 ft-lb)
NOTE:
Hold adjusting screw with a wrench to prevent it from
turning while tightening lock nut.
23
4-3SERVICE PROCEDURE
3. Steering Gearbox (Power Steering System) [LHD model]