2008 SUZUKI SWIFT Direction

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Yaw rate / G sensor
The yaw rate / G sensor consists of the yaw rate (angular velocity in the vehicle turning direction) sensor and right-left
G (acceleration in right-left direction) sensor and is mounted to the P/S controller B/K at the lower part of the center
console. It detects the angular velocity in the vehicle turn ing direction and movement in the right-left direction, and
then it sends that information to ESP ® control module.
Wheel speed sensor
The vehicle speed is detected by the hall IC type wheel speed sensor (1) and encoder (4). The wheel speed sensor is
fixed to the knuckle and includes a hall IC (3) having 2 hall elements (2).
The encoder consisting of a permanent ma gnet which has S/N electrodes turns inside of the wheel hub along with the
wheel. The wheel speed sensor outputs alternate current.
As the cycle of the alternate current is in proportion to the revolution speed of the encoder, this AC signal (5) is
converted into the voltage signal in the ESP ® control module (6) for detection of the wheel speed.
ESP ® Hydraulic Unit / Control Module
Assembly Description
S7RS0B4601002
ESP ® control module is a component of ESP ® hydraulic
unit / control module assembly and has the following
functions.
Self-Diagnosis Function
ESP ® control module monitors each input and output
signals. When ESP ® control module detects any
malfunction, some of ABS warning lamp (1), EBD
warning lamp (brake warning lamp) (2), ESP ® warning
lamp (3), SLIP indicator lamp (4), ESP ® OFF lamp (5)
are turned ON and indicate the abnormality to driver.
• When ignition switch is turned ON, ABS warning lamp, EBD warning lamp, ESP ® warning lamp, SLIP
indicator lamp and ESP ® OFF lamp light for 2
seconds to check its circuit.
• When no abnormality is detected (the system is in good condition), ABS warning lamp, EBD warning
lamp, ESP ® warning lamp, SLIP indicator lamp and
ESP ® OFF lamp turn OFF after 2 seconds.
• When an abnormality in the system is detected, some of ABS warning lamp, EBD warning lamp (brake
warning lamp), ESP ® warning lamp, SLIP indicator
lamp and/or ESP ® OFF lamp are turned ON and the
area where that abnormality lies is stored in the
memory in ESP ® control module. Fail-Safe Mode
When ESP
® control module detects abnormality, the
system goes into fail-safe mode. And some of functions
of ABS, TCS, stability control system are shut down. For
details of fail safe mode, re fer to “Fail-Safe Table”.
S
N
S
N
S
N
N
S
N
S
12V
2
3
1
5
4
6I7RS0B460003-01
3245
1
I6RS0B460001-01

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-45
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM memo ry by using scan tool.
3) Start engine and shift select lever to “D” range.
4) Keep engine running at idle speed for 25 seconds or more.
5) Stop vehicle and check DTC.
DTC Troubleshooting DTC detecting condition Trouble area
Multiple or more signals are inputted simultaneously for 10
seconds. • Select cable maladjusted
• Transmission range sensor (switch) maladjusted
• Transmission range sensor (switch) or its circuit
malfunction
•TCM
Step Action YesNo
1 Was “A/T System Check” performed? Go to Step 2.Go to “A/T System
Check”.
2 Do you have SUZUKI scan tool? Go to Step 3.Go to Step 4.
3 Check transmission range sensor (switch) circuit for
operation
Check by using SUZUKI scan tool:
1) Connect SUZUKI scan tool to DLC with ignition switch
OFF.
2) Turn ignition switch ON and check transmission range signal (“P”, “R”, “N”, “D”, “3”, “2” or “L”) on display when
shifting select lever to each range.
Is applicable range indicated? Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
Go to Step 5.
4 Check transmission range sensor (switch) circuit for
operation
Check by not using SUZUKI scan tool:
1) Turn ignition switch ON.
2) Check voltage at terminals “C35-1”, “C35-7”, “C35-8”,
“C35-18”, “C35-19” and “C35-20” respectively with
select lever shifted to each range.
Taking terminal “C35-19” as an example, is battery
voltage indicated only when se lect lever is shifted to “2”
range and 0 V for other ranges as shown in the following
table.
Check voltage at other terminals likewise, referring to the
following table.
Are check results satisfactory? Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
Go to Step 5.
5 1) Check select cable for adjustment referring to “Select Cable Adjustment”.
Is it adjusted correctly? Go to Step 6.
Adjust.
6 Check transmission range sensor (switch) for
installation position
1) Shift select lever to “N” range.
2) Check that “N” reference line on sensor and needle
direction shaped on lock washer are aligned.
Are they aligned? Go to Step 7.
Adjust.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-47
DTC Confirmation Procedure
WARNING!
• When performing a road test, select a place where there is no traffic or possibility of a traffic accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and a tester, on a level road.

1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM memo ry by using scan tool.
3) Start engine and shift select lever to “D” range.
4) Start vehicle and increase vehicle speed to 40 km/h (25 mile/h) or more for 1 minutes.
5) Stop vehicle and turn ignition switch OFF.
6) Repeat Step 3) to 4) one time.
7) Stop vehicle and check DTC.
DTC Troubleshooting Step Action YesNo
1 Was “A/T System Check” performed? Go to Step 2.Go to “A/T System
Check”.
2 Do you have SUZUKI scan tool? Go to Step 3.Go to Step 4.
3 Check transmission range sensor (switch) circuit for
operation
Check by using SUZUKI scan tool:
1) Connect SUZUKI scan tool to DLC with ignition switch
OFF.
2) Turn ignition switch ON and check transmission range signal (P, R, N, D, 3, 2 or L) on display when shifting
select lever to each range.
Is applicable range indicated? Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”
Go to Step 5.
4 Check transmission range sensor (switch) circuit for
operation
Check by not using SUZUKI scan tool:
1) Turn ignition switch ON.
2) Check voltage at terminals “C35-1”, “C35-7”, “C35-8”,
“C35-18”, “C35-19” and “C35-20” respectively with
select lever shifted to each range.
Taking terminal “C35-19” as an example, is battery
voltage indicated only when se lect lever is shifted to “2”
range and 0 V for other ranges as shown in the following
table.
Check voltage at other terminals likewise, referring to the
following table.
Are check results satisfactory? Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
Go to Step 5.
5 1) Check select cable for adjustment referring to “Select Cable Adjustment”.
Is it adjusted correctly? Go to Step 6.
Adjust.
6 Check transmission range sensor (switch) for
installation position
1) Shift select lever to “N” range.
2) Check that “N” reference line on sensor and needle
direction shaped on lock washer are aligned.
Are they aligned? Go to Step 7.
Adjust.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-95
5) Shift select lever to “N” position.
NOTE
If select lever is in “P” position, shift select
lever referring to “Select Lever Inspection”.

6) Install cable casing cap (3) to selector bracket (4).
7) Connect cable end (1) to interlock cam (2) with ignition switch turned to ACC position.
8) Drive lock button (5) in cable end until it locks cable expansion and contraction.
9) With select lever set at “P ” position, turn ignition key
to ACC position and then check for the following
conditions.
• With knob button released, ignition key can be turned from ACC position to LOCK position.
• With knob button pressed, ignition key cannot be
turned from ACC position to LOCK position.
10) Install steering column cover. 11) If the vehicle is equipped with air bag system, connect negative cable at battery and enable air bag
system, referring to “Enabling Air Bag System in
Section 8B”.
Transmission Range Sensor (Shift Switch)
Inspection and Adjustment
S7RS0B5106015
1) Shift manual select lever (4) to “N” range.
2) Check that needle direction shaped on lock washer (2) and “N” reference line (1) on transmission range
sensor are aligned. If not, loosen sensor bolts (3)
and align them.
Tightening torque
Transmission range sensor bolt (a): 5.5 N·m (
0.55 kgf-m, 4.0 lb-ft)
3) Check that engine starts in “N” and “P” ranges but it doesn’t start in “D”, “2”, “L” or “R” range. Also, check
that back-up lamp lights in “R” range.
If faulty condition cannot be corrected by adjustment,
disconnect transmission range sensor connector
and check that continuity ex ists as shown by moving
manual select lever.
3
4 1
2
3 5
I4RS0A510055-01
I3RM0B510038-01
4
3
2
1
98 76 5
12 345
6789
P
R N
D 2
L
I3RM0B510039-01

Downloaded from www.Manualslib.com manuals search engine 5A-102 Automatic Transmission/Transaxle:
Operation Check
Check pressure control solenoid valves (Pressure
control solenoid and TCC pressure control solenoid)
operation in the either manner of the following.
Using regulated DC power supply
1) Connect pressure contro l solenoid valve (1) with
regulated DC power supply (2) as shown in figure.
2) Turn regulated DC power supply switch ON and increase voltage of power supply keeping current
within 1.0 A.
3) Check for gradual movement of valve (3) in the direction of arrow “A” as voltage is increased.
4) Check movement of valve (3) in the direction of arrow “B” as voltage is decreased.
5) Turn power supply switch OFF.
CAUTION!
Do not pass current 1.0 A or more, or
pressure control solenoid is burned out.

Not using regulated DC power supply 1) Connect pressure control solenoid valve (1) to battery (2) setting 21 W bulb (4) on the way as
shown in figure.
2) Check for movement of valve (3) in the direction of arrow “A”.
3) Disconnect pressure control solenoid valve (1) from battery (2) and check movement of valve (3) in the
direction of arrow “B” as shown in figure.
CAUTION!
Set 21 W bulb on the way, or pressure control
solenoid valve is burned out.

Transmission Control Module (TCM) Removal
and Installation
S7RS0B5106026
CAUTION!
• TCM and ECM consists of highly precise
parts, therefore when handling it, be
careful not to expose to excessive shock.
• When replacing TCM with used one, all learned contents, which have been stored
in TCM memory by executing learning
control, should be initialized after
replacement.

Removal
1) Disconnect negative cable at battery.
2) If the vehicle is equipped with air bag system, disable air bag system. Refer to “Disabling Air Bag
System in Section 8B”.
3) Disconnect connectors from TCM (1).
4) Remove TCM by removing its bolts.
I2RH0B510064-01
I4RS0A510031-01
1
I4RS0B510007-01

Downloaded from www.Manualslib.com manuals search engine 5A-118 Automatic Transmission/Transaxle:
55) Remove one-way clutch outer race retainer (1).
56) Check one-way clutch No.2 as follows.• Ensure planetary carrier (1) rotates only in counterclockwise direction “A”, never in clockwise
direction “B”.
• If the planetary carrier rotates both ways or does not rotate either way, one-way clutch No.2
assembly will need to be replaced with new one-
way clutch No.2 assembly.
57) Remove one-way clutch No.2 assembly (1). 58) Remove planetary gear assembly (1).
59) Measure 1st and reverse brake piston stroke.
If piston stroke exce eds specified value,
disassemble, inspect and replace discs and plates.
• Using special tool, measure 1st and reserve brake piston stroke when compressed air (400 – 800
kPa, 4 – 8 kg/cm
2, 57 – 113 psi) is blown through
oil hole.
Special tool
(A): 09900–20607
(B): 09900–20701
(C): 09952–06020
1st and reverse brake piston stroke
Standard: 0.79 – 1.49 mm (0.031 – 0.059 in.)
I2RH0B510129-01
I2RH0B510130-01
1
I4RS0A510039-01
I2RH0B510132-01
I2RH0B510133-01

Downloaded from www.Manualslib.com manuals search engine 5A-132 Automatic Transmission/Transaxle:
• Measure forward clutch piston stroke in the same manner as “Forward and Reverse Clutch Assembly
Preliminary Check”.
When piston stroke is out of specification, select
forward clutch retaining plate with proper thickness
from among the following table and replace it.
Special tool
(A): 09900–20607
(B): 09900–20701
(C): 09952–06020
Forward clutch piston stroke
1.30 – 1.50 mm (0.051 – 0.059 in.)
Available forward clutch retaining plate thickness
• Install reverse clutch cushion plate (1) in correct direction as shown in figure.
• Apply A/T fluid to reverse clutch cushion plate (1),
reverse clutch separator plate (2), discs (3) and
retaining plate (4).
• Install reverse clutch cushio n plate (1), reverse clutch
separator plate (2), discs (3), retaining plate (4) and
then snap ring (5) to inte rmediate shaft subassembly. • Install reverse clutch plate snap ring so that its both
ends would be positioned in correct locations as
shown in figure.
• Measure reverse clutch piston stroke in the same manner as “Forward and Reverse Clutch Assembly
Preliminary Check”.
When piston stroke is out of specification, select
reverse clutch retaining plate with proper thickness
from among the following table and replace it.
Special tool
(A): 09900–20607
(B): 09900–20701
Reverse clutch piston stroke
1.20 – 1.60 mm (0.047 – 0.063 in.)
Available reverse clutch retaining plate thickness
Thickness Identification mark
3.0 mm (0.118 in.) 1
3.1 mm (0.122 in.) 5
3.2 mm (0.126 in.) 2
3.3 mm (0.130 in.) 6
3.4 mm (0.134 in.) 3
3.5 mm (0.138 in.) 7
3.6 mm (0.142 in.) 4
1. Oil hole
I2RH0B510177-02
I3RM0B510062-01
[A]: Correct[B]: Incorrect
ThicknessIdentification mark
3.0 mm (0.118 in.) 1
3.2 mm (0.126 in.) 2
3.4 mm (0.134 in.) 3
3.6 mm (0.142 in.) 4
I2RH0B510190-01
I2RH0B510191-01

Downloaded from www.Manualslib.com manuals search engine 5A-148 Automatic Transmission/Transaxle:
One-way clutch No.1 assembly1) Install one-way clutch No.1 assembly (2) to rear planetary sun gear subassembly (1).
2) Securing rear planetary sun gear subassembly, ensure that one-way clutch No.1 assembly rotates
only in one direction.
If the one-way clutch rotates in both directions or it
does not rotate in either direction, replace it with new
one.
Adjustment
Differential side bearing preload 1) After applying A/T fluid to differential assembly, fit it to transaxle case.
2) Install torque converter housing to transaxle case, then tighten bolts (1) to specified torque.
Tightening torque
Torque converter housing bolt (a): 29 N·m (2.9
kgf-m, 21 lb-ft) 3) Measure bearing preload (a) by using a special tool.
Special tool
(A): 09928–06050
Differential side bearing preload (a) measured as
starting torque
In the case of new bearing: 0.78 – 1.37 N ⋅m (7.9 –
13.9 kg-cm, 0.58 – 1.01 lb-ft)
In the case of reused bearing: 0.39 – 0.69 N ⋅m
(3.9 – 6.9 kg-cm, 0.29 – 0.51 lb-ft)
4) If bearing preload is out of specification, select shim with suitable thickness from among the list below
and replace it. Then adjust differential side bearing
preload within specification.
Available shim thickness
NOTE
Record measured differential side bearing,
because it is necessary to adjust
countershaft bearing preload.

5) Remove differential assembly.
I2RH0B510254-01
I2RH0B510255-01
Thickness Identification mark
1.80 mm (0.070 in.) A
1.85 mm (0.072 in.) B
1.90 mm (0.074 in.) C
1.95 mm (0.076 in.) D
2.00 mm (0.078 in.) E
2.05 mm (0.080 in.) F
2.08 mm (0.081 in.) G
2.11 mm (0.083 in.) H
2.14 mm (0.084 in.) J
2.17 mm (0.085 in.) K
2.20 mm (0.087 in.) L
2.23 mm (0.088 in.) M
2.26 mm (0.089 in.) N
2.29 mm (0.090 in.) P
2.32 mm (0.091 in.) Q
2.35 mm (0.092 in.) R
2.40 mm (0.094 in.) S
2.45 mm (0.096 in.) T
2.50 mm (0.098 in.) U
2.55 mm (0.100 in.) V
2.60 mm (0.102 in.) W
2.65 mm (0.104 in.) X
2.70 mm (0.106 in.) Y
I2RH0B510256-01