2007 SUZUKI SWIFT Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine Power Assisted Steering System: 6C-39
Reference waveform No.3
Motor output signal 1(1), Motor output signal 2(2), with
engine idling
Steering Wheel Play CheckS7RS0B6304024
• Check steering wheel for looseness or rattle by moving it in its shaft direction and lateral direction.
If found defective, repair or replace.
• Check steering wheel for play, holding vehicle in straight forward condition on the ground with engine
stopped.
If steering wheel play is not within specification,
inspect as follows and replace if found defective.
• Tie-rod end ball stud for wear (Ball stud should move when more than 0.2 N ⋅m (2 kg-cm, 0.44 lb-ft) torque is
applied.)
• Lower ball joint for wear
• Steering shaft joint for wear • Steering pinion or rack gear for wear or breakage
• Each part for looseness
Steering wheel play
“a”
: 0 – 30 mm (0 – 1.18 in.)
Steering Force CheckS7RS0B6304025
1) Place vehicle on level road and set steering wheel at
straight-ahead position.
2) Check if tire inflation pressure is as specified referring to the tire placard.
3) Remove driver air bag (inflator) module referring to “Driver Air Bag (Inflator) Module Removal and
Installation in Section 8B”.
4) Start engine.
5) With engine idling, measure steering force by turning torque wrench.
Steering force
: Less than 6.4 N ⋅m (0.64 kgf-m, 4.6 lb-ft)
6) Install driver air bag (inflator) module referring to “Driver Air Bag (Inflator) Module Removal and
Installation in Section 8B”.
Measurement
terminal
CH1: “E51-1” to vehicle body ground
CH2: “E51-2” to vehicle body ground
Oscilloscope
setting CH1: 5 V/DIV, CH2: 5 V/DIV
TIME: 20
µs/DIV
Measurement
condition • Engine is idling and steering wheel
is kept fully turned to left or right
until it stops
[A]: Steering wheel is kept fully turned left until it stops
[B]: Steering wheel is kept fully turned right until it stops
[C]: 12 V ON
[D]: GND ON
I6RS0B630019-01
I3RM0A630021-01
I3RM0A630022-01

Downloaded from www.Manualslib.com manuals search engine 6C-40 Power Assisted Steering System:
Repair Instructions
Steering Gear Case Assembly ComponentsS7RS0B6306001
3(a)
10
(c) 2
3
(a)
2 1
19
(g)
19 18(g) 6
11
8
9
(b) 7
(b)
22 23
24 4
5
14
15
16
(e)
17
(f)
12
(d) 21
(c)
20
4 6
5 7
(b)
9
(b)
8
13
22
23
24
A
A
1322
I7RS0B630013-02
1. Steering gear case 12. Steering gear case mounting No.3 bolt 23. Boot
2. Tie-rod lock washer 13. Gear rack side No.1 bracket 24. split pin
3. Tie-rod 14. Steering rack plunger
: Apply grease 99000-25050 to rack plunger. : 93 N
⋅m (9.3 kgf-m, 67.5 lb-ft)
4. Band 15. Steering rack plunger spring
: Apply grease 99000-25050 to spring end. : 45 N
⋅m (4.5 kgf-m, 32.5 lb-ft)
Refer to “Tie-Rod End Removal and
Installation”.
5. Boot 16. Steering rack damper screw
: Apply thread lock 99000-32110 to all around
thread part of rack damper screw. : 55 N
⋅m (5.5 kgf-m, 40.0 lb-ft)
6. Rack boot clip 17. Steering rack damper lock nut : 40 N⋅m (4.0 kgf-m, 29.0 lb-ft)
7. Tie-rod end lock nut 18. Heat insulator : Refer to “Steering Rack Plunger Removal
and Installation”.
8. Tie-rod end 19. Heat insulator bolt : 64 N⋅m (6.4 kgf-m, 46.5 lb-ft)

Downloaded from www.Manualslib.com manuals search engine Power Assisted Steering System: 6C-41
Tie-Rod End Boot On-Vehicle InspectionS7RS0B6306002
Check boot for crack and damage.
If any defect is found, replace it with a new one.
Tie-Rod End Removal and InstallationS7RS0B6306003
Removal1) Hoist vehicle, and then remove wheel referring to “Wheel Removal and Installation in Section 2D”.
2) Remove split pin (2) and tie-rod end nut (1) from steering knuckle.
3) Disconnect tie-rod end (1) from knuckle (2) using puller (3). 4) For ease of adjustment after installation, make
marking (1) of tie-rod end lock nut (2) position on tie-
rod end thread. Then, loosen lock nut and remove
tie-rod end (3) from tie-rod (4).
Installation 1) Install tie-rod end lock nut (1) and tie-rod end (2) to tie-rod (3). Align lock nut with mark (4) on tie-rod
thread.
9. Tie-rod end nut 20. Gear rack side No.2 bracket : 9.5 N⋅m (0.95 kgf-m, 7.0 lb-ft)
10. Steering gear case mounting No.1 bolt 21. Steering gear case mounting No.2 bolt : Do not reuse.
11. Steering gear case grommet 22. Clip
I3RM0A630024-01
21
I7RS0A630016-01
2 1
3
I4RS0A630040-01
I4RS0A630041-01
I4RS0A630042-01

Downloaded from www.Manualslib.com manuals search engine 6C-42 Power Assisted Steering System:
2) Connect tie-rod end to knuckle. Tighten tie-rod end nut (1) to spec ified torque.
3) Bend new split pin (2).
NOTE
After tightening tie-rod end nut to specified
torque, match next first slot of nut with hole
of tie-rod end for insertion of split pin
(rotation angle 60 ° max).

Tightening torque
Tie-rod end nut (a): 45 N·m (4.5 kgf-m, 32.5 lb-ft)
4) Inspect for proper toe re ferring to “Front Wheel
Alignment Inspection and Adjustment in Section 2B”.
5) After confirming proper toe, tighten tie-rod end lock nut to specified torque.
Tightening torque
Tie-rod end lock nut (a): 45 N·m (4.5 kgf-m, 32.5
lb-ft)
6) Tighten wheel nuts to specified torque and lower hoist.
Tightening torque
Wheel nut: 85 N·m (8.5 kgf-m, 61.5 lb-ft)
Tie-Rod End InspectionS7RS0B6306004
• Inspect for play in ball joint.
• Inspect for play in rack end ball joint. In either case, if found defective, replace.
Steering Shaft Joint On-Vehicle InspectionS7RS0B6306005
Check shaft joint for wear, breakage and any other
damage and replace if any defect exists.
Steering Gear Case Assembly Removal and
Installation
S7RS0B6306006
Removal
CAUTION!
Be sure to set front wheels (tires) in straight
direction and remove ignition key from key
cylinder before performing the following
steps; otherwise, contact coil of air bag
system may get damaged.

1) Remove front suspension frame with steering gear case assembly referrin g to “Front Suspension
Frame, Stabilizer Bar and/ or Bushings Removal and
Installation in Section 2B”.
2) Remove steering gear case mounting No.3 bolts (4), No.1 bolts (1), No.2 bolts (2) and gear case bracket,
then remove gear case (3) from front suspension
frame (5).
2 1,(a)
I7RS0A630017-01
I3RM0A630030-01
I4RS0A630043-01
I4RS0B630012-01
25
3
14
I6RS0C630018-01

Downloaded from www.Manualslib.com manuals search engine Power Assisted Steering System: 6C-43
Installation1) Mount steering gear case (1) to front suspension frame (2) and tighten gear case mounting No.1 bolts
(3), No.2 bolts (4) and No .3 bolts (5) to specified
torque.
Tightening torque
Steering gear case mounting No.1 bolt (a): 55
N·m (5.5 kgf-m, 40.0 lb-ft)
Steering gear case mounting No.2 bolt (b): 55
N·m (5.5 kgf-m, 40.0 lb-ft)
Steering gear case mounting No.3 bolt (c): 40
N·m (4.0 kgf-m, 29.0 lb-ft)
2) Install earth cable (6) as shown in figure. Tightening torque
Earth cable bolt (d): 4.5 N·m (0.45 kgf-m, 3.5 lb-
ft)
3) Install grommet (1) whose projection (2) orients vehicle forward.
4) Install front suspension frame with steering gear case assembly referring to “Front Suspension
Frame, Stabilizer Bar and/or Bushings Removal and
Installation in Section 2B”.Steering Rack Boot InspectionS7RS0B6306007
Hoist vehicle.
Inspect each boot for tear. A torn boot allows entry of
dust and water which can cause wear to steering rack
and pinion to produce noise as well as rust to result in
malfunction of steering system.
Even if boot tear is small, replace with new one.
Also, check each boot for dent. If there is a dent, keep
boot in most compressed st ate for some seconds to
correct dent.
Boots should be visually inspected for any damage, dent
and tear during every periodical inspection at specified
intervals and whenever vehicle is hoisted for any other
purpose.
Tie-Rod / Rack Boot Removal and InstallationS7RS0B6306008
Removal
1) Remove steering gear case assembly referring to
“Steering Gear Case Assembly Removal and
Installation”.
2) For ease of adjustment after installation, make marking (1) of tie-rod end lock nut position of tie-rod
thread.
3) Loosen tie-rod end lock nut and remove tie-rod end.
4) Remove boot band (2) and clip (1).
5) Remove boot from tie-rod.
F: Vehicle forward
1 2
3, (a) 4, (b)
6, (d)
5, (c)
I6RS0C630019-02
12
F
I6RS0C630020-01
I2RH01630012-01
I4RS0A630044-01
IYSQ01630034-01

Downloaded from www.Manualslib.com manuals search engine 6C-44 Power Assisted Steering System:
6) Unbend bent part of tie-rod lock washer (1).
7) Hold rack with soft jawed vise (3) and remove tie-rod
from rack (2).
Installation 1) Install tie-rod (1) and new tie-rod lock washer (3) to rack (2).
2) Hold rack with soft jawed vise and tighten tie-rod to specified torque.
Tightening torque
Tie-rod (a): 93 N·m (9.3 kgf-m, 67.5 lb-ft)
3) Bend lock washer at 2 places (1) as shown in figure. 4) Apply sealant to gear case groove “A” indicated in
figure. Position boot properly in grooves of gear case
(or rack side mount) and tie-rod.
After this, check to ensure that boot is free from twist
and dent.
“A”: Silicone sealant 99000–31120 (Silicone
sealant)
5) Fasten boot with new band and clip securely. Special tool
(A): 09943–55010
6) Install tie-rod end lock nut and tie-rod end to tie-rod. Position lock nut to marking (1) made in removal.
NOTE
When tie-rod was replaced, measure length
“a” on removed tie-rod and use it on new
replacement tie-rod so as to position lock nut
properly.

7) Tighten tie-rod end lock nut to specified torque.
Tightening torque
Tie-rod end lock nut (a): 45 N·m (4.5 kgf-m, 32.5
lb-ft)
I4RS0A630033-01
3 1, (a)
2
I6RS0C630027-01
I4RS0A630035-01
I3RM0A630050-01
I3RM0A630051-01
I3RM0A630052-01
(a)I7RS0A630018-01

Downloaded from www.Manualslib.com manuals search engine Power Assisted Steering System: 6C-45
8) Install steering gear case assembly referring to “Steering Gear Case Assembly Removal and
Installation”.
Steering Rack Plunger Removal and InstallationS7RS0B6306009
Removal
1) Remove gear case assembly referring to “Steering
Gear Case Assembly Removal and Installation”.
2) Loosen lock nut (1) with holding damper screw (2).
3) Remove lock nut (1), rack damper screw (2), rack plunger spring (3) and rack plunger (4).
Installation 1) Apply grease lightly to sliding part of plunger (1) against rack.
“A”: Grease 99000–25050 (SUZUKI Super
Grease E)
2) Install plunger and spring (2) as shown.
3) Apply thread lock cement to rack damper screw (3)
and tighten them as follows.
a) Tighten damper screw to 25 N ⋅m (2.5 kgf-m, 18.0
lb-ft).
b) Loosen damper screw until 180 °.
c) Retighten damper screw to 3.9 N ⋅m (0.39 kgf-m,
3.0 lb-ft).
d) After tightening rack damper screw to specified torque, turn it back by 7 ± 3°.
“B”: Thread lock cement 99000–32110
(Thread Lock Cement Super 1322)
Tightening torque
Rack damper screw (a): Tighten 25 N ⋅m (2.5
kgf-m, 18.0 lb-ft) and loosen 180° and then
tighten 3.9 N ⋅m (0.39 kgf-m, 3.0 lb-ft) and turn
it back by 7 ± 3° by the specified procedure. 4) Pinion rotation torque should be checked with rack
position centered.
Also, check if rack as a whole moves smoothly.
Special tool
(A): 09944–18310
Tightening torque
Rotation torquer of pinion (a): 2.0 N·m (0.2 kgf-
m, 1.5 lb-ft)
5) After adjustment, tighten lo ck nut to specified torque
with holding damper screw at the position.
Tightening torque
Rack damper screw lock nut (a): 64 N·m (6.4
kgf-m, 46.5 lb-ft)
6) Install gear case assembly referring to “Steering Gear Case Assembly Re moval and Installation”.
Steering Rack Plunger InspectionS7RS0B6306010
• Inspect rack plunger (1) for wear or damage.
• Inspect rack plunger spring (2) for deterioration.
I4RS0A630045-01
I4RS0A630046-01
I3RM0A630055-02
I4RS0A630047-01

Downloaded from www.Manualslib.com manuals search engine 6C-46 Power Assisted Steering System:
P/S Control Module Removal and InstallationS7RS0B6306011
Removal1) Disconnect negative cable at battery.
2) Remove console box.
3) Disconnect connectors (1) from P/S control module (2).
4) Disconnect connector from yaw rate / G sensor
(ESP ® model).
5) Remove P/S control module (2) with bracket (3) from floor panel.
6) Separate P/S control module and bracket.
Installation
Reverse removal procedure for installation noting the
following.
• Tighten each screw to the specified torque. Tightening torque
P/S control module bracket screw (ABS model)
(a): 9 N·m (0.9 kgf-m, 6.5 lb-ft)
P/S control module bracket screw (ESP ® model)
(a): 7 N·m (0.7 kgf-m, 5.0 lb-ft)
P/S control module mounting screw (b): 5 N·m (
0.5 kgf-m, 3.7 lb-ft)
Torque Sensor and Its Circuit InspectionS7RS0B6306012
1) Remove console box.
2) With ignition switch turned OFF, connect scan tool to DLC or connect voltage tester between “E52-18” –
“E52-9” (main sensor) or “E52-6” – “E52-9” (sub
sensor) with connected connector (1) to P/S control
module. 3) Set torque wrench to stee
ring wheel referring to
“Steering Force Check” for checking steering force.
4) Turn ON ignition switch without engine running and select scan tool “Data list” mode due to check of
“TQS Main Torque”, “TQS Sub Torque” and “Assist
Torque” display on scan tool when steering wheel
turned left and right (if used).
5) Check that characteristic of torque sensor (main and sub) output voltage or scan tool data and steering
force is as following graph when steering wheel is
turned left and right. If sensor voltage or scan tool
data is out of specified value or does not vary linearly
as the following graph, check P/S control module
and its circuit.
If they are OK, replace steering gear case assembly.
1
(a)
2
3
(b)
I7RS0A630020-01
[A]: Steering force at left turn
[B]: Steering force at right turn
[C]: Steering wheel at free
[D]: “TQS Main Torque”, “TQS Sub Torque” and “Assist Torque” in “Data List” displayed on scan tool
E52
18
9
6
9
6 18
1
I6RS0C630024-01
I3RM0A630022-01
0
[C] [N.m]
MAX MAX
[B]
[A]
2.33 - 2.68 [V]
[D]
0.65 - 0.72
(0 - 0.4)
4.21 - 4.41
(5.1 - 5.6)
6.86
-6.86
0
6.86
- 6.86
I6RS0C630021-04