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 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 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-110 Automatic Transmission/Transaxle:
Automatic Transaxle Unit DisassemblyS7RS0B5106033
CAUTION!
• Thoroughly clean transaxle exterior before overhauling it.
• Keep working table, tools and hands clean while overhauling.
• Use special care to handle aluminum parts so as not to damage them.
• Do not expose removed parts to dust. Keep them always clean.
1) Remove torque converter (1).
CAUTION!
Remove torque converte r as much straight
as possible. Leaning it may cause to damage
oil seal lip.
2) Remove engine mounting LH bracket (1).
3) Remove manual select lever (1). 4) Uncaulk lock washer (1),
then remove lock nut (2)
and lock washer.
5) Remove transmission range sensor (1).
6) Remove output shaft speed sensor (2) and input shaft speed sensor (1).
7) Remove harness bracket (3) and select cable clamp (4).
I2RH0B510078-01
I3RM0B510054-01
1
I3RM0B510055-01
1
2
I3RM0B510056-01
I3RM0B510057-01
I3RM0B510058-01
Downloaded from www.Manualslib.com manuals search engine 5A-124 Automatic Transmission/Transaxle:
Direct Clutch Assembly ComponentsS7RS0B5106037
Direct Clutch Assembly Preliminary CheckS7RS0B5106038
Install direct clutch assembly (1) to oil pump assembly
(2) blow in air (400 – 800 kPa, 4 – 8 kg/cm2, 57 – 113
psi) through oil hole (3) of oil pump assembly with
special tool attached on uppe r surface of direct clutch
piston, and measure piston stroke of direct clutch.
If piston stroke exceeds sp ecified value, disassemble,
inspect and replace inner parts.
Special tool
(A): 09900–20607
(B): 09900–20701
Direct clutch piston stroke
0.4 – 0.7 mm (0.016 – 0.027 in.)
I2RH0B510160-01
1. Input shaft front thrust bearing 6. Outer O-ring 11. Direct clutch retaining plate
2. Input shaft seal ring 7. Direct clutch return spring subassembly 12. Plate snap ring
3. Input shaft subassembly 8. Shaft snap ring : Apply automatic transaxle fluid.
4. Inner O-ring 9. Direct clutch separator plate : Do not reuse.
5. Direct clutch piston 10. Direct clutch disc
I2RH0B510161-01
Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-129
Forward and Reverse Clutch Assembly
Preliminary Check
S7RS0B5106042
1) Install forward and reverse clutch assembly (1) to
transaxle rear cover (2), blow in compressed air (400
– 800 kPa, 4 – 8 kg/cm
2, 57 – 113 psi) through oil
hole (4) of transaxle rear cover with the special tool
attached on the upper surf ace of reverse clutch
retaining plate (3), and measure reverse clutch
piston stroke.
If piston stroke exce eds specified value,
disassemble, inspect and replace inner parts.
Special tool
(A): 09900–20607
(B): 09900–20701
Reverse clutch piston stroke
1.20 – 1.60 mm (0.047 – 0.063 in.)
2) Blow compressed air (400 – 800 kPa, 4 – 8 kg/cm
2,
57 – 113 psi) through oil hole (1) of transaxle rear
cover with the special tool attached on the upper
surface of forward clutch retaining plate, and
measure forward clutch piston stroke.
If piston stroke exce eds specified value,
disassemble, inspect and replace inner parts.
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.)
Forward and Reverse Clutch Assembly
Disassembly and Reassembly
S7RS0B5106043
Disassembly
1) Remove reverse clutch plate snap ring (1) and take out reverse clutch retaini ng plate, discs, separator
plates and clutch cushion plate from intermediate
shaft subassembly.
2) Remove forward clutch plate snap ring (1) and take out forward clutch retaining plate, discs and
separator plates from forward clutch drum.
3) Remove balancer snap ring by using special tool and hydraulic press.
Special tool
(A): 09926–97610
CAUTION!
Do not press forward clutch return spring
subassembly in over 1.5 mm (0.059 in.).
Excessive compression may cause damage
to return spring subassembly and/or
balancer.
I2RH0B510176-01
I2RH0B510177-02
I2RH0B510178-01
I2RH0B510179-01
Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-131
Reassembly
Reverse disassembly procedure for assembly, noting the
following points.
• Before assembling, apply automatic transaxle fluid to component parts.
• Replace O-rings and seal ring with new ones.
• Do not damage forward clutch return spring subassembly and balancer (1) by pressing forward
clutch return spring subassembly passing through its
original installing position over 1.5 mm (0.059 in.).
Special tool
(A): 09926–97610
• Apply A/T fluid to forward clutch separator plates (1), discs (2) and retaining plate (3).
• Install forward clutch separator plates (1), discs (2) and retaining plate (3), then snap ring (4) to forward
clutch drum. • Install forward clutch plate snap ring so that its both
ends would be positioned in correct locations as
shown in figure.
I2RH0B510180-01
4
1
2 3
I5RW0C510062-01
[A]: Correct
[B]: Incorrect
I2RH0B510188-01
Downloaded from www.Manualslib.com manuals search engine 5A-150 Automatic Transmission/Transaxle:
Automatic Transaxle Unit AssemblyS7RS0B5106060
CAUTION!
• Automatic transaxle consists of highly precise parts. As even flaw in small part
may cause oil leakage or decrease in
function, check each part carefully before
installation.
• Clean all parts with compressed air. Never use wiping cloths or rags.
• Before assembling new clutch or brake discs, soak them in automatic transaxle
fluid for at least 2 hours.
• Be sure to use new gaskets and O-rings.
• Lubricate O-rings with automatic transaxle
fluid.
• Apply automatic transaxle fluid on sliding or rotating surfaces of the parts before
assembly.
• Use Suzuki Super Grease “C” to retain parts in place.
• Be sure to install thrust bearings and races in correct direction and position.
• Make sure that snap ring ends are not aligned with one of cut outs and are
installed in groove correctly.
• Do not use adhesive cements on gaskets and similar parts.
• Be sure to torque each bolt and nut to specification.
1) Install new manual shift sh aft oil seal to transaxle
case.
Use special tool and hammer to install it, and then
apply grease to its lip.
Special tool
(A): 09925–98210
“A”: Grease 99000–25030 (SUZUKI Super
Grease C)
Manual shift shaft oil seal installing depth
“a”: 0.5 – 1.5 mm (0.02 – 0.06 in.) 2) Install manual detent spring (1) to transaxle case
and tighten manual detent spring bolt to specified
torque.
Tightening torque
Manual detent spring bolt (a): 10 N·m (1.0 kgf-
m, 7.5 lb-ft)
3) Install parking lock pawl ro d (2) to manual valve lever
(1).
4) After applying A/T fluid to new manual valve lever (1), install new manual shift shaft (4), new spacer (3)
and manual valve lever to transaxle case.
5) After installing manual valve lever pin (2) by using spring pin remover with 3.5 mm (0.14 in.) in diameter
(5) and hammer, turn spacer to set the position as
shown in figure. Then caulk spacer with a punch.
“a”
(A)
“A”
I2RH0B510258-01
I2RH0B510259-01
I2RH0B510260-01
I2RH0B510261-01