Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-23
Scan Tool DataS7RS0B5104009
As the data values given in the following table are standard values estimated on the basis of values obtained from the
normally operating vehicles by using a scan tool, use them as reference values. Even when the vehicle is in good
condition, there may be cases where the checked value does not fall within each specified data range. Therefore,
judgment as abnormal should not be made by checking with these data alone.
Also, condition in the following table that can be checked by the scan tool are those detected by TCM and output from
TCM as commands and there may be cases where the auto matic transaxle or actuator is not operating (in the
condition) as indicated by the scan tool.
NOTE
The following scan tool data related to automatic transaxle can be checked only by communicating
with TCM.
) P1777 TCM lost communication with ECM
(Reception error) • Throttle opening used for line pressure control is assumed
to be 100%.
• Throttle opening used for gear shifting control is assumed to be 0%.
• Engine revolution is assumed to be 0 RPM.
• After 15 minutes pass from detecting malfunction, engine coolant temperature is assumed to be 90 °C (194 °F).
• Lock-up function is inhibited to operate.
• Line pressure control at gear shifting is inhibited.
• Torque reducing request to ECM (torque reduction control) is inhibited.
• Upshifting to 4th gear is inhibited.
• Garage shift control is inhibited.
• Learning control is inhibited.
) P1778 TCM lost communication with BCM
(Reception error) “3” position switch is assumed to be OFF.
) P1878 Torque converter clutch shudder Slip contro lled lock-up function is inhibited to operate.
) P2762 Torque converter clutch pressure control
solenoid control circuit range /
performance • Lock-up function is inhibited to operate.
• Slip controlled lock-up function is inhibited to operate.
• Upshifting to 4th gear is inhibited when transmission fluid
temperature is 150 °C (302 ° F) or more.
• Gear position is fixed in 1st gear when vehicle speed is 10 km/h (6 mile/h) or less.
) P2763 Torque converter clutch pressure control
solenoid control circuit high • Lock-up function is inhibited to operate.
• Upshifting to 4th gear is inhibited when A/T fluid
temperature is more than 150 °C (302 °F).
• Vehicle speed is slower than 10 km/h (6 mile/h), gear position is fixed in 1st gear for prevention of engine stall.
) P2764 Torque converter clutch pressure control
solenoid control circuit low • Lock-up function is inhibited to operate.
• Upshifting to 4th gear is inhibited when A/T fluid
temperature is more than 150 °C (302 °F).
DTC No. Trouble area Fail-safe operation
Scan tool data
Vehicle condition Normal condition / reference
values
) GEAR POSITION Ignition switch ON Select lever is in “P” position
P or N
Select lever is in “R” position R
Select lever is in “N” position P or N
Select lever is in “D” position 1
Select lever is in “3” position 1
Select lever is in “2” position 1
Select lever is in “L” position 1
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-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-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-125
Direct Clutch Assembly Disassembly and
Reassembly
S7RS0B5106039
Disassembly1) Remove plate snap ring (1) then remove direct clutch retaining plate, discs and separator plates.
2) Using special tool and hydraulic press, remove shaft snap ring (1).
Special tool
(A): 09926–98310
CAUTION!
Do not press direct clutch return spring
subassembly in over 0.7 mm (0.027 in.).
Excessive compression may cause damage
to direct clutch return spring subassembly
and/or piston.
3) Remove direct clutch re turn spring assembly (2).
4) Using a finger to block oil hole (1), apply compressed air (400 – 800 kPa, 4 – 8 kg/cm
2, 57 –
113 psi) to opposite hole, which will assist in removal
of the clutch piston. 5) Remove outer O-ring (1).
6) Remove inner O-ring (2).
7) Remove input shaft seal rings (1).
I2RH0B510162-01
I2RH0B510163-01
I2RH0B510164-01
2. Direct clutch piston
1. Input shaft subassembly
I2RH0B510165-01
I2RH0B510166-01
I2RH0B510167-01
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 5A-130 Automatic Transmission/Transaxle:
4) Remove forward clutch balancer (1).
5) Remove forward clutch return spring subassembly
(1).
6) Install intermed iate shaft subassembly (1) to
transaxle rear cover (2). Apply compressed air (400
– 800 kPa, 4 – 8 kg/cm
2, 57 – 113 psi) to oil hole (3)
of transaxle rear cover to remove forward clutch
piston (4). 7) Apply compressed air (400 – 800 kPa, 4 – 8 kg/cm
2,
57 – 113 psi) to oil hole (1) of transaxle rear cover to
remove forward clutch drum (2).
8) Remove forward clutch piston O-ring (1) from intermediate shaft subassembly (2).
9) Remove forward clutch drum O-ring (1) from forward clutch drum (2).
10) Remove intermediate shaft seal ring (1) from intermediate shaft subassembly (2).
2. Intermediate shaft subassembly
I2RH0B510180-01
I2RH0B510181-01
I2RH0B510182-01
I2RH0B510183-01
I2RH0B510184-01
I2RH0B510185-01
I2RH0B510186-01
Downloaded from www.Manualslib.com manuals search engine 5A-134 Automatic Transmission/Transaxle:
2nd Brake Piston Assembly ComponentsS7RS0B5106045
2nd Brake Piston Assembly Disassembly and
Reassembly
S7RS0B5106046
Disassembly1) Apply compressed air (400 – 800 kPa, 4 – 8 kg/cm
2,
57 – 113 psi) to oil hole (1) of 2nd brake cylinder (3)
to remove 2nd brake piston (2). 2) Remove inner O-ring (1) and outer O-ring (2).
I2RH0B510196-01
1. 2nd brake cylinder
3. Inner O-ring: Apply automatic transaxle fluid.
2. 2nd brake piston 4. Outer O-ring: Do not reuse.
I2RH0B510197-01
I2RH0B510198-01