2008 SUZUKI SWIFT 040

Downloaded from www.Manualslib.com manuals search engine 5A-82 Automatic Transmission/Transaxle:
Inspection of TCM and Its CircuitsS7RS0B5104045
TCM and its circuits can be checked at TCM wiring connec tors by measuring voltage, pulse signal and resistance.
CAUTION!
TCM cannot be checked by itself, it is strictly prohibited to connect voltmeter or ohmmeter to TCM with
connector disconnected from it.

1) Remove TCM (1) from vehicle referring to “Transmission Control Module (TCM) Removal and Installation”.
2) Connect TCM connectors (2) to TCM.
3) Check voltage and/or pulse signal at each terminal of connectors connected using voltmeter (3) and oscilloscope
(4).
NOTE
• As each terminal voltage is affected by battery voltag e, confirm that it is 11 V or more when ignition
switch is ON.
• Voltage with asterisk(*) cannot be measured by voltmeter because it is pulse signal. Check it with oscilloscope if necessary.

Terminal arrangement of TCM coupler (Viewed from harness side)
5. Body ground
3
5 4
12
I6RS0C510009-01
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
I4RS0A510022-01

Downloaded from www.Manualslib.com manuals search engine 5A-86 Automatic Transmission/Transaxle:
Reference waveform No. 5
Output shaft speed sensor signal at vehicle speed 60
km/h (37 mile/h).
TCM Power and Ground Circuit CheckS7RS0B5104046
Wiring DiagramMeasurement
terminal
CH1: “C35-25” to “C34-1”
Oscilloscope
setting CH1: 5 V/DIV
TIME: 2 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Drive vehicle at 60 km/h (37 mile/h).
I3RM0B510028-01
BLK
BLK
BLK
C34-1
C34-23
C34-6YEL/BLKYEL/BLU
LT GRN/BLK
+BB
C34-24WHT/RED1
23
6
24 23 1
C34C35
[A]
I4RS0A510023-01
1. TCM
3. Ignition switch
2. A/T relay [A]: Terminal arrangement of TCM connector (viewed from harness side)

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-87
Troubleshooting
Brake Interlock System InspectionS7RS0B5104047
1) Check that select lever cannot be moved to any other range from “P” range position when ignition
switch key is at ACC position, at LOCK position or it
is removed from keyhole of ignition switch, or brake
pedal is not depressed. 2) Shift select lever to “P” range position, release knob
button and check for the following.
• Ignition key can be turned between LOCK and ACC positions back and forth and also it can be
removed from ignition switch.
Step Action Yes No
1 Check TCM back-up power circuit
1) Disconnect TCM connector with ignition switch OFF.
2) Check for proper connection to TCM at “C34-24”
terminal.
3) If OK, check voltage at terminal “C34-24” of disconnected TCM connector.
Is it 10 – 14 V? Go to Step 2. “WHT/RED” circuit open
or shorted to ground.
2 Check TCM power circuit
1) Disconnect TCM connector with ignition switch OFF.
2) Check for proper connection to TCM at “C34-6” terminal.
3) If OK, turn ignition switch ON and check voltage at
terminal “C34-6” of disconnected TCM connector.
Is it 10 – 14 V? Go to Step 4. Go to Step 3.
3 Check A/T relay operation
1) Check A/T relay operation referring to “A/T Relay
Inspection”.
Is check result satisfactory? “YEL/BLK”, “YEL/BLU”,
“LT GRN/BLK” or “BLK”
circuit for power supply
open.
Replace A/T relay.
4 Check TCM ground circuit
1) Turn ignition switch OFF.
2) With TCM connectors disconnected, check for proper
connection to TCM at “C34-1” / “C34-23” terminal.
3) If OK, check resistance between “C34-1” / “C34-23” terminal of disconnected TCM connector and body
ground.
Is continuity indicated? TCM power and ground
circuits are in good
condition.
“BLK” circuit for TCM
ground open.
I4RS0A510047-01
I4RS0A510048-01

Downloaded from www.Manualslib.com manuals search engine 5A-96 Automatic Transmission/Transaxle:
Output Shaft Speed Sensor Removal and
Installation
S7RS0B5106016
Removal
1) Disconnect negative cable at battery.
2) Disconnect output shaft speed sensor connector (2).
3) Remove output shaft speed sensor (1) by removing its bolt.
Installation 1) Apply A/T fluid to output shaft speed sensor O-ring.
2) Install output shaft speed sensor (1) to A/T case and tighten bolt to specified torque.
Tightening torque
Output shaft speed sensor bolt (a): 13 N·m (1.3
kgf-m, 9.5 lb-ft)
3) Connect output shaft speed sensor connector (2) to output shaft speed sensor (1).
4) Connect negative cable to battery.
Output Shaft Speed Sensor InspectionS7RS0B5106017
1) Connect positive cable of 12 volt battery to “A” terminal of sensor and ground cable to “C” terminal.
Then using voltmeter, check voltage between “B”
terminal and “C” terminal with output shaft speed
sensor driven gear rotated.
If measured voltage (pulse signal) is not as
specified, replace sensor.
Output shaft speed sensor output voltage
Pulse signal of alternating 0 – 1 V and 10 – 14 V 2) Check output shaft speed sensor driven gear (1) for
wear.
Replace if necessary.
Input Shaft Speed Sensor Removal and
Installation
S7RS0B5106018
Removal
1) Disconnect negative cable at battery.
2) Disconnect input shaft speed sensor connector (2).
3) Remove input shaft speed sensor (1) by removing its bolt.
I3RM0B510040-01
I3RM0B510041-01
I2RH0B510045-01
I2RH0B510046-01
I2RH0B510047-01

Downloaded from www.Manualslib.com manuals search engine 5A-120 Automatic Transmission/Transaxle:
67) Screwing 3 bolts (1), remove reduction drive gear (2).
CAUTION!
Screw 3 bolts into reduction drive gear
uniformly, or reduction drive gear, bearing
and transaxle case may be damaged.

Bolt length
35 mm (1.38 in.)
68) Blowing compressed air from oil hole (1) of oil pump,
remove 1st and reverse brake piston (2). 69) Remove parking lock pawl bracket (1).
70) With slotted screwdriver, cut and unfold manual
valve lever spacer (1) and proceed to remove
manual valve lever spacer.
71) Using spring pin remover with 3.5 mm (0.14 in.) in diameter and hammer, drive out manual valve lever
pin (1).
72) Remove manual shift shaft (2).
73) Remove parking lock pawl rod (2) from manual valve lever (1).
I2RH0B510140-01
1 2I4RS0A510040-01
I2RH0B510142-01
I2RH0B510143-01
I2RH0B510144-01
I2RH0B510145-01

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-127
Direct Clutch Assembly InspectionS7RS0B5106040
Clutch Discs, Plates and Retaining Plate
Check that sliding surfaces of discs, separator plates
and retaining plate are not worn hard or burnt. If
necessary, replace.
NOTE
• If disc lining is exfoliated, discolored, replace all discs.
• Before assembling new discs, soak them in A/T fluid for at least two hours.

Direct Clutch Return Spring Subassembly
Measure free length of direct clutch return spring.
Direct clutch return spring free length
“a”: 36.04 mm (1.419 in.)
NOTE
Do not apply excessive force when
measuring spring free length. Perform
measurement at several points.

Direct Clutch Piston
Shake direct clutch piston lightly and check that check
ball (1) is not stuck.
Blow in low pressure air (Max. 100 kPa, 1 kg/cm
2, 15 psi)
to check ball to check that there is no leakage.
I2RH0B510172-01
I2RH0B510173-01
I2RH0B510174-01

Downloaded from www.Manualslib.com manuals search engine Manual Transmission/Transaxle: 5B-3
Diagnostic Information and Procedures
Manual Transaxle Symptom DiagnosisS7RS0B5204001
Repair Instructions
Manual Transaxle Oil ChangeS7RS0B5206001
1) Before changing or inspecting oil, be sure to stop engine and lift vehicle horizontally.
2) With vehicle lifted up, check oil level and leakage. If leakage exists, correct it.
NOTE
Whenever vehicle is hoisted for any other
service work than oil change, also be sure to
check for oil leakage.

3) Remove oil filler plug (2).
4) Remove drain plug (1), and drain old oil. 5) Apply sealant to thread of drain plug (1), and tighten
it to specified torque.
“A”: Sealant 99000–31260 (SUZUKI Bond
No.1217G)
Tightening torque
Transaxle oil drain plug (a): 21 N·m (2.1 kgf-m,
15.5 lb-ft)
6) Pour new specified oil unt il oil level reaches bottom
of oil filler plug hole (3) as shown in figure.NOTE
It is highly recommended to use API GL-4
75W-90 gear oil.

Transaxle oil specification
: API GL-4 (For SAE classification, refer to
viscosity chart [A] in figure.)
Manual transaxle oil capacity
Reference: 2.0 liters (4.2/3.5 US/Imp. pt)
Condition Possible cause Correction / Reference Item
Gears slipping out of
mesh Worn shift fork shaft
Replace.
Worn shift fork or synchronizer sleeve Replace.
Weak or damaged locating springs Replace.
Worn bearings on input shaft or
countershaft Replace.
Worn chamfered tooth on sleeve and
gear Replace sleeve and gear.
Hard shifting Maladjusted gear select control cable Adjust.
Inadequate or insufficient lubricant Replenish.
Improper clutch pedal free travel Replace clutch master cylinder or clutch pedal
arm.
Distorted or broken clutch disc Replace.
Damaged clutch pressure plate Replace clutch cover.
Worn synchronizer ring Replace.
Worn chamfered tooth on sleeve or gear Replace sleeve or gear.
Worn gear shift / select control cables
joint Replace.
Distorted shift shaft Replace.
Worn gear shift / select control cables Replace.
Noise Inadequate or insufficient lubricant Replenish.
Damaged or worn bearing(s) Replace.
Damaged or worn gear(s) Replace.
Damaged or worn synchronizer parts Replace.

Downloaded from www.Manualslib.com manuals search engine 5B-20 Manual Transmission/Transaxle:
9) Install side bearing retainer as follows.a) Install differential side bearing outer race to left case and then tap and accustom outer race
using special tool and plastic hammer.
CAUTION!
Do not drive in a race with hammer.
Driving it may cause to damage bearing.

Special tool
(A): 09926–27610
b) Select a shim of differential side bearing as follows.
i) Measure depth “a” from left case (1) face to side bearing outer race (2) using depth
gauge.
ii) Measure height “b” of side bearing retainer with depth gauge. iii) Calculate clearance a – b, and select
differential shim acco rding to the following
table.
Bearing shim specification
(A)
I4RH01520053-01
I4RS0A520037-01
“b”
I4RS0A520038-01
Clearance “a” – “b” Thickness of bearing
shim to be installed
0.636 – 0.665 mm
(0.0250 – 0.0261 in.) 0.75 mm (0.030 in.)
0.666 – 0.695 mm
(0.0262 – 0.0273 in.) 0.78 mm (0.031 in.)
0.696 – 0.725 mm
(0.0274 – 0.0285 in.) 0.81 mm (0.032 in.)
0.726 – 0.755 mm
(0.0286 – 0.0297 in.) 0.84 mm (0.033 in.)
0.756 – 0.785 mm
(0.0298 – 0.0309 in.) 0.87 mm (0.034 in.)
0.786 – 0.815 mm
(0.0310 – 0.0320 in.) 0.90 mm (0.035 in.)
0.816 – 0.845 mm
(0.0321 – 0.0332 in.) 0.93 mm (0.037 in.)
0.846 – 0.875 mm
(0.0333 – 0.0344 in.) 0.96 mm (0.038 in.)
0.876 – 0.905 mm
(0.0345 – 0.0356 in.) 0.99 mm (0.039 in.)
0.906 – 0.935 mm
(0.0357 – 0.0368 in.) 1.02 mm (0.040 in.)
0.936 – 0.965 mm
(0.0369 – 0.0379 in.) 1.05 mm (0.041 in.)
0.966 – 0.995 mm
(0.0380 – 0.0391 in.) 1.08 mm (0.043 in.)
0.996 – 1.025 mm
(0.0392 – 0.0403 in.) 1.11 mm (0.044 in.)
1.026 – 1.055 mm
(0.0404 – 0.0415 in.) 1.14 mm (0.045 in.)
1.056 – 1.085 mm
(0.0416 – 0.0427 in.) 1.17 mm (0.046 in.)
1.086 – 1.115 mm
(0.0428 – 0.0438 in.) 1.20 mm (0.047 in.)
1.116 – 1.145 mm
(0.0439 – 0.0450 in.) 1.23 mm (0.048 in.)
1.146 – 1.175 mm
(0.0451 – 0.0462 in.) 1.26 mm (0.050 in.)
1.176 – 1.205 mm
(0.0463 – 0.0474 in.) 1.29 mm (0.051 in.)
1.206 – 1.235 mm
(0.0475 – 0.0486 in.) 1.32 mm (0.052 in.)
1.236 – 1.265 mm
(0.0487 – 0.0498 in.) 1.35 mm (0.053 in.)
1.266 – 1.295 mm
(0.0499 – 0.0509 in.) 1.38 mm (0.054 in.)
1.296 – 1.325 mm
(0.0510 – 0.0521 in.) 1.41 mm (0.056 in.)