Tcc SUZUKI SWIFT 2008 2.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine General Information: 0A-2
SAS: Steering Angle Sensor
SDM: Sensing and Diagnostic Module (Air Bag Controller, Air bag Control Module)
SDT: Smart Diagnostic Tester
SFI: Sequential Multipor t Fuel Injection
SOHC: Single Over Head Camshaft
T:
TBI: Throttle Body Fuel Injection (Single-Point Fuel
Injection, SPI)
TCC: Torque Converter Clutch
TCM: Transmission Control Module (A/T Controller, A/T
Control Module)
TDC: Top Dead Center
TP Sensor: Throttle Position Sensor TVV:
Thermal Vacuum Valve (Thermal Vacuum
Switching Valve, TVSV, Bi metal Vacuum Switching
Valve, BVSV)
TWC: Three Way Catalytic Converter (Three Way
Catalyst)
2WD: 2 Wheel Drive
U:
USB: Universal Serial Bus
V:
VIN: Vehicle Identification Number
VSS: Vehicle Speed Sensor
VVT: Variable Valve Timing (Camshaft Position Control)
W:
WU-OC: Warm Up Oxidation Catalytic Converter
WU-TWC: Warm Up Three Way Catalytic Converter
SymbolsS7RS0B0101002
Wire Color SymbolsS7RS0B0101003
Symbol Definition SymbolDefinition
Tightening torque Apply SUZUKI BOND NO. 1216B
99000-31230
Apply oil (engine, transmission, transfer,
differential) Apply SILICONE SEALANT
99000-31120
Apply fluid (brake, power steering or
automatic transmission fluid) Apply SEALING COMPOUND 366E
99000-31090
Apply SUZUKI SUPER GREASE A
99000-25011
Apply SUZUKI SUPER GREASE C
99000-25030 Apply THREAD LOCK 1322
99000-32110
Apply SUZUKI SUPER GREASE E
99000-25050 Apply THREAD LOCK 1333B
99000-32020
Apply SUZUKI SUPER GREASE H
99000-25121 Apply THREAD LOCK 1342
99000-32050
Apply SUZUKI SUPER GREASE I
99000-25210
Apply SUZUKI BOND NO. 1215
99000-31110 Do not reuse
Apply SUZUKI BO ND NO. 1207F
99000-31250 Note on reassembly
Apply SUZUKI BO ND NO. 1217G
99000-31260
Symbol Wire Color SymbolWire Color
B BLK Black O, Or ORN Orange
Bl BLU Blue RRED Red
Br BRN Brown WWHT White
G GRN Green YYEL Yellow
Gr GRY Gray PPNK Pink
Lbl LT BLU Light blueVPPL Violet
Lg LT GRN Light green

Downloaded from www.Manualslib.com manuals search engine 5-ii Table of Contents
DTC P1878: Torque Converter Clutch Shudder .......................................................... 5A-75
DTC P2762: Torque Converter Clutch (TCC) Pressure Control Sole noid Control Circuit
Range /Performance ....................................... 5A-76
DTC P2763: Torque Converter Clutch Pressure Control Sole noid Control Circuit
High ................................................................. 5A-78
DTC P2764: Torque Converter Clutch Circuit Pressure Control Sole noid Control Circuit
Low ................................................................. 5A-80
Inspection of TCM and Its Circuits .................... 5A-82
TCM Power and Ground Circuit Check ............. 5A-86
Brake Interlock System Inspection .................... 5A-87
Repair Instructions ........... .................................5A-88
Learning Control Initializat ion ............................ 5A-88
A/T Fluid Level Check ....................................... 5A-89
A/T Fluid Change .............................................. 5A-90
Select Lever Components ... .............................. 5A-90
Select Lever Assembly Removal and Installation ....................................................... 5A-90
Select Lever Knob Installa tion........................... 5A-90
Select Lever Inspection .... ................................. 5A-91
“3” Position Switch Inspec tion ........................... 5A-91
Shift Lock Solenoid Inspec tion .......................... 5A-91
Shift Lock Solenoid Replacement ..................... 5A-91
Select Cable Components ................................ 5A-92
Select Cable Removal and Installation ............. 5A-92
Select Cable Adjustment ................................... 5A-93
Key Interlock Cable Removal and Installation... 5A-93
Transmission Range Sensor (Shift Switch) Inspection and Adjustment .............................. 5A-95
Output Shaft Speed Sensor Removal and Installation ....................................................... 5A-96
Output Shaft Speed Sensor Inspection ............. 5A-96
Input Shaft Speed Sensor Removal and Installation ....................................................... 5A-96
Input Shaft Speed Sensor Inspection................ 5A-97
Transmission Fluid Temperature Sensor Removal and Installation ................................. 5A-97
Transmission Fluid Temperature Sensor Inspection ........................................................ 5A-98
Solenoid Valves (Shift Solenoid Valves and Timing Solenoid Valve) Removal and
Installation ....................................................... 5A-98
Solenoid Valves (Shift Solenoid Valves, and Timing Solenoid Valve) Inspection .................. 5A-99
Pressure Control Soleno id Valves (Pressure
Control Solenoid and TCC Pressure Control
Solenoid) Removal and Inst allation .............. 5A-101
Pressure Control Solenoid Valve Inspection ... 5A-101
Transmission Control Module (TCM) Removal and Installation ............................... 5A-102
A/T Relay Inspection ....................................... 5A-103
Differential Side Oil Seal Replacement ........... 5A-103
A/T Fluid Cooler Hoses Replacement ............. 5A-104
Automatic Transaxle Unit Components........... 5A-105
Automatic Transaxle Unit Dismounting and Remounting ................................................... 5A-106
Automatic Transaxle Asse mbly Components . 5A-108 Automatic Transaxle Unit
Disassembly........... 5A-110
Oil Pump Assembly Components ................... 5A-121
Oil Pump Assembly Disassembly and Reassembly .................................................. 5A-122
Oil Pump Assembly Inspection ....................... 5A-122
Direct Clutch Assembly Components.............. 5A-124
Direct Clutch Assembly Preliminary Check ..... 5A-124
Direct Clutch Assembly Disassembly and Reassembly .................................................. 5A-125
Direct Clutch Assembly Inspection.................. 5A-127
Forward and Reverse Clutch Assembly Components .................................................. 5A-128
Forward and Reverse Clutch Assembly Preliminary Check ......................................... 5A-129
Forward and Reverse Clutch Assembly Disassembly and Reassembly ...................... 5A-129
Forward and Reverse Clutch Assembly Inspection ...................................................... 5A-133
2nd Brake Piston Assembly Components ....... 5A-134
2nd Brake Piston Assembly Disassembly and Reassembly .................................................. 5A-134
Transaxle Rear Cover (O/D and 2nd Coast Brake Piston) Assembly Components........... 5A-135
Transaxle Rear Cover (O/D and 2nd Coast Brake Piston) Assembly Disassembly and
Reassembly .................................................. 5A-136
Transaxle Rear Cover (O/D and 2nd Coast Brake Piston) Assembly Inspection............... 5A-137
Countershaft Assembly Co mponents.............. 5A-138
Countershaft Assembly Disassembly and Reassembly .................................................. 5A-138
Valve Body Assembly Components ................ 5A-139
Valve Body Assembly Disassembly and Reassembly .................................................. 5A-140
Differential Assembly Components ................. 5A-141
Differential Assembly Disassembly and Reassembly .................................................. 5A-142
Differential Assembly Inspection ..................... 5A-143
Torque Converter Housing Disassembly and Reassembly .................................................. 5A-144
Transaxle Case Disassembly and Reassembly .................................................. 5A-146
Automatic Transaxle Unit Inspection and Adjus
tment .................................................... 5A-147
Automatic Transaxle Unit Assembly ............... 5A-150
Specifications .................. .................................5A-167
Tightening Torque Specifications .................... 5A-167
Special Tools and Equipmen t .........................5A-168
Recommended Service Material ..................... 5A-168
Special Tool .................................................... 5A-168
Manual Transmission/Tr ansaxle ............ 5B-1
General Description .............................................5B-1
Manual Transaxle Construction and Servicing .... 5B-1
Diagnostic Information and Procedures ............5B-3 Manual Transaxle Symptom Diagnosis............... 5B-3
Repair Instructions ............ ..................................5B-3
Manual Transaxle Oil Change............................. 5B-3
Differential Side Oil Seal Replacement ............... 5B-4

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-3
General Description
A/T DescriptionS7RS0B5101001
This automatic transaxle is electronic control full automatic transaxle with forward 4-speed and reverse 1-speed.
The torque converter is a 3-element, 1-step and 2-phase type and is equipped with an automatically controlled lock-up
mechanism.
The gear change device consists of a ravigneau type planet ary gear unit, 3 multiple disc type clutches, 3 multiple disc
type brakes and 2 one-way clutches.
The hydraulic pressure control device consists of a valve body assembly, pressure control solenoid valve (linear
solenoid), 2 shift solenoid va lves, TCC pressure control solenoid valve (lin ear solenoid) and a timing solenoid valve.
Optimum line pressure complying with engine torque is produced by the pressure control solenoid valve in
dependence upon control signal from transmission control module (TCM). This makes it possible to control the line
pressure with high accuracy in accordance with the engine power and running conditions to achieve smooth shifting
characteristics and high efficiency.
A clutch-to-clutch control system is prov ided for shifting between 3rd gear and 4th gear. This clutch-to-clutch control
system is made to function optimally , so that hydraulic pressure controls such as shown below are conducted.
• When upshifting from 3rd gear to 4th gear, to adjust the drain hydraulic pressure at releasing the forward clutch, a
timing solenoid valve is used to switch a hydraulic passage with an orifice to another during shifting.
• When downshifting from 4th gear to 3rd gear, to adjust the line pressure applied to the forward clutch at engaging the forward clutch, a timing solenoid valve is used to s witch a hydraulic passage with an orifice to another during
shifting.
• When upshifting from 3rd gear to 4th gear with engine throttle opened, to optimize the line pressure applied to the forward clutch at releasing the forward clutch, the learning control is processed to compensate the switching timing
of the timing solenoid at every shifting.
• When downshifting from 4th gear to 3rd gear with engine throttle opened, to optimize the line pressure applied to
the forward clutch at engaging the forw ard clutch, the learning control is processed to compensate the line pressure
at every shifting.
Employing the ravigneau type planetary gear unit and this clutch-to-clutch control system greatly simplifies the
construction to make possible a lightweight and compact transaxle.
A line pressure learning control is conducted to provide opti mum shifting time at every upshifting with engine throttle
opened. If long upshifting time is detected, the subsequent line pressure applied during upshifting is intensified. On the
contrary, if short upshifting time is detected, the subs equent line pressure applied during upshifting is weakened.
Slip controlled lock-up function
Even at a lower speed than when the TCC gets engaged completely, control over the TCC pressure control solenoid
works to cause the TCC to slip (be engaged slightly), ther eby improving the transmission efficiency. While such slip
control is being executed, the oil pressure applied to the TCC is controlled by the TCC pressure control solenoid so
that the difference between the engine speed and the input shaft speed becomes close to the specified value.
Also, during deceleration, the TCC is made to slip (be enga ged slightly) to raise the engine speed and enlarge the fuel
cut operation range so that better fuel consumption is achieved.
Due to this reason, it is absolutely necessary for the automati c transmission to use ATF suitable for slip control. Use of
any fluid other than the specified ATF may cause j uddering or some other faulty condition to occur.

Downloaded from www.Manualslib.com manuals search engine 5A-4 Automatic Transmission/Transaxle:
1
2
3
4567891011121314151617
18 19 20 21 22 23
24 25
26
27
28I3RM0B510001-01
1. Drive plate 11. 1st and reverse brake 21. Rear sun gear
2. Torque converter clutch (TCC) 12. Ring gear22. Front sun gear
3. Torque converter 13. Long planet pinion23. Short planet pinion
4. Input shaft 14. One-way No.2 clutch 24. Countershaft
5. Oil pump 15. 2nd brake25. Reduction driven gear
6. Direct clutch drum (double as sensor ro tor for input shaft speed sensor) 16. One-way No.1 clutch 26. Differential case assembly
7. Direct clutch 17. O/D and 2nd coast brake 27. Final gear
8. Parking lock gear 18. Intermediate shaft28.Output shaft speed sensor drive gear
9. Reduction drive gear 19. Forward clutch
10. Planet carrier 20. Reverse clutch

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-5
SpecificationsItem Specifications
Torque converter Ty p e
Stall torque ratio 3-element, 1-step, 2-phase type (with TCC (lock-up)
mechanism)
2.0 – 2.2
Oil pump Ty p e
Drive system Internal involute gear type oil pump (non crescent type)
Engine driven
Gear change
device Type Forward 4-step, reverse 1-step planetary gear type
Shift position
“P” range Gear in neutral, output shaft fixed, engine start
“R” range Reverse
“N” range Gear in neutral, engine start
“D” range
Forward 1st
↔ 2nd ↔ 3rd ↔ 4th automatic gear
change
“3” range Forward 1st
↔ 2nd ↔ 3rd ← 4th automatic gear
change
“2” range Forward 1st ↔ 2nd ← 3rd automatic gear change
“L” range Forward 1st
← 2nd ← 3rd reduction, and fixed at 1st
gear
Gear
ratio 1st 2.875 Number of teeth Front sun gear: 24
2nd 1.568 Rear sun gear: 30
3rd 1.000 Long planet pinion: 20
4th (overdrive gear) 0.697 Short planet pinion: 19
Reverse (reverse gear) 2.300 Ring gear: 69
Control elements Wet type multiple-disc clutch... 3 sets
Wet type multiple-d
isc brake... 3 sets
One-way clutch... 2 sets
Reduction gear ratio 1.023
Final gear reduction ratio 4.277
Lubrication Lubrication system Force feed system by oil pump
Cooling Cooling system Radiator assisted cooling (water-cooled)
Fluid used SUZUKI ATF 3317 or Mobil ATF 3309

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-7
Table of Component OperationS7RS0B5101003
{: ON
×: OFF
U : ON only when TCC is operating
Selector
position Gear
position Part
Shift solenoid
valve-A (No.1) Shift solenoid
valve-B (No.2) TCC solenoid
valve Forward
clutch Direct clutch Reverse
clutch
PParking {{ × ×××
R Reverse {{ ××× {
N Neutral {{ × ×××
D 1st
{{ ×{ ××
2nd { ×× {××
3rd ×× U{{ ×
4th × { U ×{ ×
2 1st
{{ ×{ ××
2nd { ×× {××
L1st {{ ×{ ××
Selector
position Gear
position Part
O/D and 2nd coast brake 2nd brake 1st and
reverse brake One-way No.1
clutch One-way No.2
clutch
PParking ×××××
R Reverse ×× {××
N Neutral ×××××
D 1st
×××× {
2nd × { ×{ ×
3rd × { ×××
4th {{ ×××
2 1st
×××× {
2nd {{ ×{ ×
L1st ×× {×{

Downloaded from www.Manualslib.com manuals search engine 5A-8 Automatic Transmission/Transaxle:
Brake Interlock System ConstructionS7RS0B5101004
Shift Lock Solenoid Control
This system consists of shift lock solenoid control
system and interlock cable control system.
The shift lock solenoid cont rol system is so designed
that the select lever can not be shifted from “P” range
position unless ignition switch is turned to “ON” or “ACC”
position and the brake pedal is depressed.
And interlock cable control system is so designed that
select lever cannot be shifted from “P” range position
unless ignition switch is turned to “ACC” or “ON”
position. Also, ignition key cannot be pulled out of key
slot unless select le ver is in “P” range.
Shift Lock Solenoid Manual Release
When push down shift lock solenoid valve release button
(1), select lever can be moved from “P” range position to
another range even without depressing the brake pedal.
(To shift select lever from “P” range to any other position,
turn ignition switch to ACC or ON position.)
A/T Diagnosis General DescriptionS7RS0B5101005
This vehicle is equipped with an electronic transaxle
control system, which controls the automatic shift up and
shift down timing, TCC operation, etc. suitably to vehicle
driving conditions.
TCM has an On-Board Diagnosis System which detects
a malfunction in this system.
When diagnosing a trouble in transaxle including this
system, be sure to have full understanding of the outline
of “On-Board Diagnostic System Description” and each
item in “Precautions in Diagnosing Trouble” and execute
diagnosis according to “A/T System Check” to obtain
correct result smoothly.
On-Board Diagnostic System DescriptionS7RS0B5101006
For automatic transaxle co ntrol system, TCM has the
following functions. Refer to “Inspection of TCM and Its
Circuits”.
• When ignition switch is turned ON with no malfunction in A/T control system is detected, transmission
warning light (1) lights for about 2 seconds after
ignition switch is turned ON and then goes OFF for
bulb check.
• When TCM detects a malfunction in A/T control system, it indicates transmission warning light (1) and
stores malfunction DTC in its memory.
• It is possible to communicate with TCM through data link connector (DLC) (3) by using SUZUKI scan tool
(2). Diagnostic information can be checked and
erased by using SUZUKI scan tool.
• For information about the following items, refer to “On- Board Diagnostic System De scription in Section 1A”
– Warm up cycle
– Driving cycle
– 2 Driving cycle detection logic
– Pending DTC
– Freeze frame data
1
I6RS0C510001-01
3
2
1
I6RS0C510002-01

Downloaded from www.Manualslib.com manuals search engine 5A-10 Automatic Transmission/Transaxle:
Schematic and Routing Diagram
Transmission Control Module (TCM) Wiring DiagramS7RS0B5102001
IG1
115
5
5
8
9
10 7
P
R
N
D
2
L
12
12V 2.5V
5V
12V
5V
12V
12V
12V
12V
WHT
BLK
BLK
BLK
BLK
PPLBLK/RED
BLK/ORN
IG11
RED/BLK
YEL/BLKYEL/BLU
LT GRN/BLK
+BB
WHT/RED
14
20
15
16
17
19
12V18
1
2
3
4
6
13 21
26
24
27
28 29
30
WHT
WHT
RED
RED
WHT
RED
65
16 15 14 13 12 11 43
24 23 2122 10 9 8 721
1920 18 17
C34
17 16
26 25
15 14
65 3
42
13 12
23 2224 11 10 9
21 20 19 87
18
1
C35
[A]
22
25
YELYEL/GRN
WHT
P
N
BRN
LT GRN
ORN
BLK/YEL
BLU/BLK
GRY
LT GRN/BLK WHT/BLU
WHT/BLK
C34-11
C34-12
C34-16
C34-15
C34-14
C34-4
C34-2
C34-1
C34-23 C34-6
C34-24 C34-5
C34-3
RED
GRN
GRN/ORN PNK/BLK
GRN/YEL
LT GRN/BLKC35-6
C35-16
C35-23 C35-25
C35-20
C35-1
C35-8
C35-7
C35-19
C35-18 C34-17 C34-7
4IG11
12V
23
PPL/WHT
LT GRN
I6RS0C510005-01
1. TCM 12. Backup lamp 23. Starter motor relay
2. Input shaft speed sensor 13. Data link connector DLC 24. Ignition switch
3. Output shaft speed sensor 14. Transmission fluid temperature sensor 25. Starter motor
4. ECM 15. Shift solenoid valve-A (No.1) 26. “DOME” fuse
5. CAN driver 16. Shift solenoid valve-B (No.2) 27. “AT ETM” fuse
6. BCM 17. Timing solenoid valve 28. “IG SIG” fuse
7. Meter driver 18. TCC lock-up pressure control solenoid valve 29. “ST SIG” fuse
8. “3” position switch 19. Pressure control solenoid valve 30. “ST MOT” fuse
9. Shift lock solenoid 20. A/T [A]: Terminal arrangement of TCM connector
(viewed from harness side)
10. Brake light switch 21. A/T relay
11. Transmission range sensor 22. Inhibitor switch (including transmission range sensor)

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-11
Operation of Shift Solenoid Valves, Timing Solenoid Valve and TCC Solenoid Valve
{: ON (Turn power ON)
×: OFF (Turn power OFF)
U : ON only when TCC is operatingSelect
lever
position Gear
position Solenoid
Condition
Shift
solenoid valve-A (No.1) Shift
solenoid valve-B (No. 2) Timing
solenoid valve TCC
solenoid valve
PParking {{ ××
R Reverse {{
××When vehicle is travelling forwards in
less than 9 km/h, 6 mile/h vehicle speed
{{{ ×When vehicle is travelling forwards in 9
km/h, 6 mile/h or more vehicle speed
(Reverse) ×××× When fail-safe function is operating
N Neutral {{ ××
D Neutral
→
1st ——
{—Timing solenoid is turned ON for about
0.5 sec. while on gear shifting
1st {{ ××
2nd {×××
3rd ××× U
3rd ↔ 4th — — {—Timing solenoid is turned ON for about
0.5 sec. while on gear shifting
4th ×{ ×U
(3rd) ×××× When fail-safe function is operating
2 1st
{{ ××
2nd {×××
(3rd) ×××× When fail-safe function is operating
L 1st
{{ ××
(3rd) ×××× When fail-safe function is operating
Valve status
Turn power ON Turn power OFF
Shift solenoid valv e-A (No.1) Close Open
Shift solenoid valv e-
B (No.2) CloseOpen
Timing solenoid OpenClose
TCC (lock-up) pressure control solenoid CloseOpen

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-13
Component Location
Electronic Shift Control System Components LocationS7RS0B5103001
NOTE
The figure shows left-hand steering vehicle. For right-hand steering vehicle, parts with (*) are installed
at the opposite side.

3 4
5*
1 2
6
7 8
9 10 11
12
13 14
16*
18
19
17
15
20
I6RS0C510006-01
1. Engine
8. TCC pressure control solenoid valve (TCC
solenoid valve) 15. ECM
2. Transaxle 9. Transmission fluid temperature sensor 16. TCM
3. MIL 10. Timing solenoid valve17. AT relay
4. Shift position indicator light 11. Pressure control solenoid valve18. “3” position switch
5. Junction block assembly (included in BCM) 12. Shift solenoid valve-B (No.2)19. Select lever