Reverse SUZUKI SWIFT 2008 2.G Service Service Manual

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 5A-14 Automatic Transmission/Transaxle:
6. Output shaft speed sensor 13. Shift solenoid valve-A (No.1) 20. Transmission warning light
7. Input shaft speed sensor 14. Transmission range sensor
INPUT OUTPUT
TCMECM
Gear shift control
4th gear inhibit control
Slope shift control
Slip control
Lock up control
Torque control
Line pressure control
Overrun control
Reverse control
Squat control
Input shaft speed sensor
Output shaft speed sensor
"3" position switch ATF temp. sensor
Shift switch
- Range "P" signal
- Range "R" signal
- Range "N" signal
- Range "D" signal
- Range "2" signal
- Range "L" signal
Fail safe function
Self diagnosis
Warning function
ECM
Shift solenoid valve-A
Shift solenoid valve-B
TCC pressure control
solenoid valve
Pressure control
solenoid valve
Signal on CAN
communincation line
COMB. METER
-Engine torque
-Engine speed
-Throttle position
-A/C compressor clutch
-Coolant temperature
-Brake pedal switch -ATF temp.
-Torque request
-Vehicle speed pulse
-Transmission actual gear
position
-A/T select lever position
-Accelerator pedal position
-Transmission warning light
-A/T select lever position
I7RS0B510005-01

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-27
Road TestS7RS0B5104011
This test is to check if upshift, downshift and lock-up take place at specified speeds while actually driving vehicle on a
level road.
WARNING!
• Carry out test in very little traffic area to prevent an accident.
• Test requires 2 persons, a driver and a tester.

1) Warm up engine.
2) With engine running at idle, shift select lever “D” range.
3) Accelerate vehicle speed by depressing accelerator pedal gradually.
4) While driving in “D” range, check if gear shift and lock-up occur properly as shown in “Automatic Gear Shift Table”.
Troubleshooting 9 Proceed to “Trouble Diag
nosis 2” in “A/T Symptom
Diagnosis”.
Is trouble identified? Repair or replace faulty
parts.
Proceed to “Trouble
Diagnosis 3” in “A/T
Symptom Diagnosis”.
Step Action Yes No
Condition
Possible cause Correction / Reference Item
Unable to run in all range Faulty valve body component Replace valve body assembly.
Faulty oil pump Inspect. If NG, replace.
Seized or broken planetary gear Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Faulty forward clutch Inspect. If NG, replace.
Faulty reverse clutch Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Damaged drive plate Inspect. If NG, replace.
Faulty torque converter Replace.
No gear shift as 3rd gear Malfunction of shift solenoid valve-A
and/or -B Inspect. If NG, replace.
Malfunction of timing solenoid valve Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
1
→ 2 upshift fails to
occur Malfunction of shif
t solenoid valve-B Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Faulty valve body component Replace valve body assembly.
Faulty 2nd brake Inspect. If NG, replace.
Faulty one-way No.1 clutch Inspect. If NG, replace.
2
→ 3 upshift fails to
occur Malfunction of shif
t solenoid valve-A Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Faulty valve body component Replace valve body assembly.
Faulty direct clutch Inspect. If NG, replace.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-29
Manual Road TestS7RS0B5104012
WARNING!
Carry out test in very little traffic area to prevent an accident.
Test requires 2 persons, a driver and a tester.

The purpose of this test is to judge whether causal factor of trouble which occurred in automatic transaxle is electrical
or mechanical by disconnecting valve body harness co nnector (1) and fixing automatic transaxle gear position.
1) Start engine and warm it up to normal operating temperature.
2) Turn ignition switch to OFF position and disconnect valve body harness connector (1).
3) Turn OFF all electrical loads. With select lever shifted to each ra nge (“L”, “2”, “3” and “D”), drive vehi cle at 1,000 rpm engine speed and then
check vehicle speed by referring to “Fixed gear position”.
If vehicle speed is not as specified in “Fix ed gear position” table, go to troubleshooting.
4) Connect valve body harness connector and clear DTC.
Fixed gear position TCC (lock-up) function
pressure control does not
operate
Malfunction of TCC pressure control
solenoid valve
Inspect. If NG, replace.
Malfunction of shif t solenoid valve-A
and/or -B Inspect. If NG, replace.
Malfunction of brake light switch Inspect. If NG, replace.
Malfunction of engine coolant
temperature sensor Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Faulty torque converter Replace.
Condition
Possible cause Correction / Reference Item
Select lever positionFixed gear position Vehicle speed
L range
3rd gearApprox. 25.0 km/h (15.5 mile/h)
2 range
3 range
D range
R range Reverse gear Approx. 10.9 km/h (6.8 mile/h)
I3RM0B510010-01

Downloaded from www.Manualslib.com manuals search engine 5A-30 Automatic Transmission/Transaxle:
Troubleshooting
Engine Brake TestS7RS0B5104013
WARNING!
Before test, make sure that there is no vehicle behind so as to prevent rear-end collision.

1) While driving vehicle in 3rd gear of “D” range, shift select lever down to “2” range and check if engine brake
operates.
2) In the same way as in Step 1), check engine brake for operation when select lever is shifted down to “L” range.
3) Engine brake should operate in the test.
Troubleshooting
Stall TestS7RS0B5104014
This test is to check overall performance of automatic tr ansaxle and engine by measuring stall speed at “D” and “R”
ranges. Be sure to perform this test only when transaxle fluid is at normal operating temperature and its level is
between FULL and LOW marks.
CAUTION!
• Do not run engine at stall more than 5 seconds continuously, or fluid temperature may rise excessively high.
• After performing stall test, be su re to leave engine running at idle for longer than 1 minute before
another stall test.

1) Apply parking brake and block wheels.
2) Install tachometer.
3) Start engine with select lever shifted to “P” range.
4) Depress brake pedal fully.
5) Shift select lever to “D” range and depress accelerator pedal fully while watching tachometer. Read engine rpm quickly when it has become constant (stall speed).
6) Release accelerator pedal immediately after stall speed is checked.
7) In the same way, check stall speed in “R” range.
8) Stall speed should be withi n the following specification.
Engine stall speed
Standard: 2100 – 2400 rpm Condition Possible cause Correction / Reference Item
Operated gear is not
correct Faulty valve body component
Replace valve body assembly.
Faulty clutch or brake Inspect clutch and brake. If any parts are faulty,
replace them.
Condition Possible cause Correction / Reference Item
Failure to operate when
shifted down to “2” range Faulty valve body component
Replace valve body assembly.
Faulty O/D and 2nd coast brake Inspect. If NG, replace.
Failure to operate when
shifted down to “L” range Faulty valve body component
Replace valve body assembly.
Faulty 1st and reverse brake Inspect. If NG, replace.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-31
Troubleshooting
Time Lag TestS7RS0B5104015
This test is to check conditions of clutch, brake and fluid pressure. “Time lag” means time elapsed since select lever is
shifted with engine idling till shock is felt.
1) With chocks placed before and behind front and rear wheels respectively, depress brake pedal.
2) Start engine.
3) With stop watch ready, shift select lever from “N” to “D” range an d measure time from that moment till shock is felt.
4) Similarly measure time lag by shifting select lever from “N” to “R” range.
Gear shifting time lag
“N” → “D”: Less than 0.7 sec.
“N” → “R”: Less than 1.2 sec.
NOTE
• When repeating this test, be sure to wait at least one minute after select lever is shifted back to “N”
range.
• Engine should be warmed up fully for this test.
• Repeat test 3 times and take average of those data for final time lag data.

Condition Possible cause Correction / Reference Item
Lower than standard level
in both “D” and “R” range Engine output torque failure
Inspect and repair engine.
Faulty one-way clutch of torque
converter Replace torque converter.
Higher than standard
level in “D” range Malfunction of pressure control solenoid
valve (Low line pressure) Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Slippery forward clutch Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Leakage from “D” range fluid pressure
circuit Replace valve body assembly.
Higher than standard
level in “R” range Malfunction of pressure control solenoid
valve (Low line pressure) Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Slippery reverse clutch Inspect. If NG, replace.
Slippery 1st and reverse brake Inspect. If NG, replace.
Leakage from “R” range fluid pressure
circuit Replace valve body assembly.
Higher than standard
level in both “D” and “R”
range Malfunction of pressure control solenoid
valve (Low line pressure)
Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Clogged oil strainer Replace.
Faulty oil pump Inspect. If NG, replace.
Leakage from both “D” and “R” range
fluid pressure circuit Replace valve body assembly.

Downloaded from www.Manualslib.com manuals search engine 5A-32 Automatic Transmission/Transaxle:
Troubleshooting
Line Pressure TestS7RS0B5104016
Purpose of this test is to check operat ing conditions of each part by measuring fluid pressure in fluid pressure line.
Line pressure test requires the following conditions.
• Automatic fluid is at normal operating temperature (70 – 80 °C / 158 – 176 °F).
• Fluid is replenished to proper level (between FULL and LOW on dipstick).
• Air conditioner switch is turned OFF.
1) Apply parking brake securely and place chocks against wheels.
2) Remove fluid pressure check hole plug bolt.
3) Attach oil pressure gauge to fluid pr essure check hole in transaxle case.
Special tool
(A): 09925-37811-001
CAUTION!
After attaching oil pressure gauge, check that no fluid leakage exists.

4) Depress foot brake fully, run engine at idle and stall then check fluid pressure in “D” or “R” range.
CAUTION!
• Do not continue running engine at stall speed longer than 5 seconds.
• After performing line pressure test, be sure to leave engine running at idle for longer than one minute before performing another line pressure test.

Automatic transaxle line pressure
Condition Possible cause Correction / Reference Item
“N”
→ “D” time lag
exceeds specification Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve (Low line pressure) Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Clogged oil strainer Replace.
Faulty oil pump Inspect. If NG, replace.
Faulty forward clutch Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Leakage from “D” range fluid pressure
circuit Replace valve body assembly.
“N”
→ “R” time lag
exceeds specification Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve (Low line pressure) Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Clogged oil strainer Replace.
Faulty oil pump Inspect. If NG, replace.
Faulty reverse clutch Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Leakage from “R” range fluid pressure
circuit Replace valve body assembly.
“D” range
“R” range
At idle speed 3.8 – 4.2 kg/cm2, 54 – 60psi 5.9 – 6.9 kg/cm2, 84 – 98 psi
At stall speed 12.1 – 13.4 kg/cm2, 172 – 191 psi 16.8 – 19.5 kg/cm2, 239 – 277 psi

Downloaded from www.Manualslib.com manuals search engine 5A-40 Automatic Transmission/Transaxle:
Trouble Diagnosis 3
Off-vehicle repairNon operate TCC (lock-
up) system
Malfunction of TCC solenoid valve
Inspect. If NG, replace.
Malfunction of shift solenoid valve-A
and/or -B Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Malfunction of engine coolant
temperature sensor Inspect referring to “ECT Sensor Inspection in
Section 1C”. If NG, replace.
Malfunction of brake light switch Inspect referring to “Brake Light Switch
Inspection in Section 9B”. If NG, replace.
Faulty valve body component Replace valve body assembly.
Excessive “N”
→ “D” or
“N”
→ “R” time lag Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Pressure control solenoid valve circuit
faulty Inspect. If NG, replace valve body assembly.
Clogged oil strainer Replace.
Faulty valve body component Replace valve body assembly.
Condition Possible cause Correction / Reference Item
Condition
Possible cause Correction / Reference Item
Unable to run in all range Faulty oil pump Inspect. If NG, replace.
Seized or broken planetary gear Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Damaged drive plate Inspect. If NG, replace.
Faulty forward clutch Inspect. If NG, replace.
Faulty reverse clutch Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Faulty torque converter Replace.
Excessive “N”
→ “D” shift
shock Faulty forward clutch
Inspect. If NG, replace.
Excessive “N”
→ “R” shift
shock Faulty reverse clutch
Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Poor 1
→ 2 shift,
excessive shock or
slippage Faulty 2nd brake
Inspect. If NG, replace.
Faulty one-way No.1 clutch Inspect. If NG, replace.
Poor 2
→ 3 shift,
excessive shock or
slippage Faulty direct clutch
Inspect. If NG, replace.
Poor 3
↔ O/D shift,
excessive shock or
slippage Faulty forward clutch
Inspect. If NG, replace.
Faulty O/D and 2nd coast brake Inspect. If NG, replace.
Poor 3
→ 2 shift,
excessive shock or
slippage Faulty direct clutch
Inspect. If NG, replace.
Faulty one-way No.1 clutch Inspect. If NG, replace.
Poor 2
→ 1 shift,
excessive shock or
slippage Faulty 2nd brake
Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-41
No Gear Shift to 4th gearS7RS0B5104019
System Description
TCM does not shift to 4th gear under any of the following condition.
• “3” position switch is turned ON.
• Engine coolant temperature is less than 50 °C (122 °F).
• A/T fluid temperature is less than 20 °C (68 °F).
• A/T fluid temperature is more than 130 °C (266 °F) while TCM is detecting P2762, P2763 and P2764.
• TCM detects the following DTCs. P0712 / P0713 / P0717 / P0722 / P0787 / P0788 / P0961 / P0962 / P0963 / P0973 / P0974 / P0976 / P0977 / P1702
/ P1703 / P1774 / P1777
Troubleshooting
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.

Non operate TCC (lock-
up) system Faulty torque converter
Replace.
Excessive “N”
→ “D” time
lag Faulty oil pump
Inspect. If NG, replace.
Faulty forward clutch Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Leakage from “D” range fluid pressure
circuit Replace valve body assembly.
Excessive “N”
→ “R” time
lag Faulty oil pump
Inspect. If NG, replace.
Faulty reverse clutch Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Leakage from “R” range fluid pressure
circuit Replace valve body assembly.
Poor engine brake in
downshift to “2” range Faulty O/D and 2nd coast brake
Inspect. If NG, replace.
Poor engine brake in
downshift to “L” range Faulty 1st and reverse brake
Inspect. If NG, replace.
Condition Possible cause Correction / Reference Item
Step
Action YesNo
1 Was “A/T System Check” performed? Go to Step 2.Go to “A/T System
Check”.
2 Check DTC
Is DTC P0712, P0713, P0717, P0722, P0961, P0962,
P0963, P0973, P0974, P0976, P0977, P1702, P1703,
P1774 and/or P1777 detected? Go to applicable DTC
diag. flow.
Go to Step 3.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-97
Installation1) Apply A/T fluid to input shaft speed sensor O-ring.
2) Install input shaft speed se nsor (1) to A/T case and
tighten bolt to specified torque.
Tightening torque
Input shaft speed sensor bolt (a): 5.5 N·m (0.55
kgf-m, 4.0 lb-ft)
3) Connect input shaft speed sensor connector (2) to input shaft speed sensor (1).
4) Connect negative cable to battery.
Input Shaft Speed Sensor InspectionS7RS0B5106019
1) Disconnect negative cable at battery.
2) Disconnect input shaft speed sensor connector (2).
3) Check resistance between input shaft speed sensor (1) terminals.
Input shaft speed sensor resistance
Standard: 560 – 680 Ω at 20 °C (68 °F)
Transmission Fluid Temperature Sensor
Removal and Installation
S7RS0B5106020
Removal
1) Disconnect negative cable at battery.
2) Lift up vehicle.
3) With engine is cool, remove drain plug and drain A/T fluid.
4) Install drain plug. Refer to “A/T Fluid Change”.
5) Remove A/T oil pan.
6) Remove oil stra iner assembly. 7) Remove valve body assembly referring to
“Automatic Transaxl e Unit Disassembly”.
CAUTION!
When pulling solenoid wire harness out of
transaxle case, take care not to damage
transmission fluid temperature sensor at
narrow exit of case.
Careless sensor treatment might cause
sensor malfunction.

8) Remove solenoid wire harness (1).
Installation
Reverse removal procedure to install solenoid wire
harness and valve body assembly noting the following
points.
• For details of valve body assembly and their connectors installation, refer to “Automatic Transaxle
Unit Assembly”.
• For details of A/T oil pa n installation, refer to
“Automatic Transaxle Unit Assembly”. Use new oil
pan gasket.
• Tighten valve body harness connector bolt to specified torque.
Tightening torque
Valve body harness connector bolt (a): 7.0 N·m (
0.7 kgf-m, 5.0 lb-ft)
• Pour A/T fluid and check fluid level according to procedure described in “A/T Fluid Change”.
• Check for fluid leakage after warming up A/T.
I2RH0B510048-01
I2RH0B510049-01
I2RH0B510050-01
I2RH0B510051-01