2004 DAEWOO LACETTI Gear

5A2 – 4IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNSmLb–FtLb–In
Drain Plug1713–
Control Cable Adjusting Nut8–71
Shift Control Lever Assembly Mounting Bolts8–71
Manual Valve Lever Shaft Nut12–106
Transmission Range (TR) Switch Bolts5.4–48
Input Speed Sensor Retaining Bolt5.4–48
Output Speed Sensor Retaining Bolt7.4–65
TCM Retaining Bolts5–44
Fluid Cooler Inlet Pipe Fitting Nut3526–
Fluid Cooler Inlet Pipe Bolt9–80
Inlet Pipe Union Bolt3526–
Fluid Cooler Rear Outlet Pipe Fitting Nut3526–
Fluid Cooler Rear Outlet Pipe Clip Bolt9–80
Front Outlet Pipe Union Bolt3526–
Lower Transaxle–to–Engine Retaining Bolts (a)7354–
Lower Transaxle–to–Engine Retaining Bolts (b)3123–
Lower Transaxle–to–Engine Retaining Bolts (c)2115–
Upper Transaxle–to–Engine Mounting Bolts7354–
Upper Transaxle Mounting Bracket Bolts6044–
Rear Mounting Bracket Bolts6044–
Damping Block Connection Nut and Bolt8059–
Torque Converter Bolts4543–
Screw Plugs7.4–65
Transaxle Apply Clamp Bolt5.4–48
Oil Reservoir Lock Plate Bolts5.4–48
Transaxle Case Plate Bolt9.8–87
Transaxle Housing Bolts2922–
Manual Detent Spring Bolt9.8–87
Parking Lock Pawl Bracket Bolts7.4–65
Planetary Ring Gear Nut (Standard)9.8–87
Planetary Ring Gear Nut (Maximum)2922–
Transaxle Rear Cover Bolts2518–
Oil Pump Bolts2518–
Valve Body Bolts11–97
Oil Strainer Bolts9.8–87
Oil Pan Bolts7–62
Unions2518–
Stator Shaft Bolts2518–
Shift Solenoid Valve Bolts11–97
Differential Case–to–Differential Ring Gear Bolt10275–

5A2 – 6IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DW240–080
2nd Brake Adapter
DW240–090
Planetary Ring
Gear Remover
DW240–100
Counter Drive
Gear Installation
Adapter
DW260–041
Planetary Ring
Gear Nut
Removal/Installation
Socket (52mm)
DW260–031–01
Tranaxle Housing
Oil Seal Installer
DW260–031–02
Tranaxle Case
Oil Seal Installer
DW240–120
Measuring Terminal
DW240–130
Differential Preload
Adapter
DW260–013
Transaxle Support
Fixture
DW240–140
Transaxle Housing
Side Bearing
Outer Race
Adapter

5A2 – 20IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
1. Transaxle Housing
2. Oil Seal
3. Oil Reservoir Plate
4. Transaxle Oil Apply Pipe
5. Differential Gear Oil Apply Pipe
6. Transaxle Oil Apply Pipe Clamp
7. Spring
8. Check Valve Pipe Clamp
9. Apply Gasket
10. Brake Drun Gasket
11. Transaxle Wire
12. O–ring
13. Valve Body
14. Parking Lock Pawl
15. Parking Lock Pawl Shaft
16. Torsion Spring
17. Manual Valve lever Shaft
18. Manual Valve Lever
19. Parking Lock Rod
20. Parking Lock Pawl Bracket
21. Manual Detent Spring
22. Pin
23. Spacer24. Oil Seal
25. Transmission Range (TR) Switch
26. Lock Washer
27. Control Lever
28. Washer
29. Gasket
30. Oil Strainer
31. Oil Pan
32. Gasket
33. Magnet
34. Direct Clutch Accumulator Piston
35. O–ring
36. Spring
37. O–ring
38. Forward Clutch Accumulator Piston
39. O–ring
40. Spring
41. O–ring
42. Overdrive Brake Accumulator Piston
43. O–ring
44. O–ring
45. Spring

5A2 – 22IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
1. Planetary Ring Gear
2. O–ring
3. 1st and Reverse Brake Piston
4. O–ring
5. 1st and Reverse Brake Piston Return Spring
6. Plate
7. Disc
8. Flange
9. Snap Ring
10. Planetary Gear
11. Thrust Washer
12. No. 2 One–Way Clutch
13. Anti–Rattle Clip
14. Flange
15. Disc
16. Plate
17. 2nd Brake Piston Return Spring
18. O–ring
19. 2nd Brake Piston
20. O–ring
21. 2nd Brake Clutch Cylinder
22. Snap Ring
23. Thrust Bearing Race
24. Front Planetary Sun Gear
25. Thrust Bearing Race26. One–Way Clutch Assembly
27. Thrust Washer
28. Rear Planetary Sun Gear
29. Snap Ring
30. Flange
31. Disc
32. Plate
33. Thrust Bearing Race
34. Thrust Needle Roller Bearing
35. Forward Clutch Hub
36. Thrust Bearing Race
37. Thrust Needle Roller Bearing
38. Thrust Bearing Race
39. Forward and Reverse Clutch Assembly
40. Thrust Needle Roller Bearing
41. Snap Ring
42. O/D Brake Return Spring
43. O/D Brake Piston
44. O–ring
45. Seal Ring
46. Transaxle Rear Cover
47. Apply Gasket
48. O–ring
49. Screw Plug

AISIN AUTOMATIC TRANSAXLE 5A2 – 23
DAEWOO V–121 BL4
1. Side Bearing Outer Race
2. Differential Case
3. Shim
4. Outer Tapered Roller Bearing Race
5. Counter Driven Gear
6. Oil Seal
7. Oil Pump8. Thrust Needle Roller Bearing
9. Direct Clutch Assembly
10. Thrust Bearing Race
11. Direct Clutch Hub
12. Counter Driven Gear
13. Transaxle Case Plate
14. Apply Gasket

5A2 – 30IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Manual Shifting Test
Manual shifting test is to determine whether failure symp-
tom is within electrical failure or mechanical failure.
1. Disconnect wire harness of shift solenoid, check
the range and gear positions correspond with below
table when driving by manual shifting.
Range
Gear
D3rd gear
RReverse
Notice : Make sure to disconnect only wire harness of shift
solenoid.
UNIT INSPECTION
Drive Plate Deflection
S Inspect drive plate deflection if within standard
value.
Standard Value
within 0.2mm (0.008 in)
Action :
Standard value is not within the specified value, replace
drive plate.
When ”abnormal wear” or ”stick” on torque converter
sleeve or oil pump is found, replace torque converter and
A/T.
Notice :
S When assembling torque converter and drive plate.
Be sure to use correct bolt with correct length. The
bolt pushes up torque converter front cover, and it
damages lock–up clutch lining. As a result, it cause
major failure ”No move”.
S Do not tighten the bolts by using impact wrench.
Cooler Pipe Bending and Choke
S Inspect it whether there is abnormal pipe bending in
the cooler pipe, pipe deformation and small cross–
section area of pipe line.
Action : Replace failure parts.S Apply compressed air of 2kg/cm
2 from cooler pipe
inlet side, inspect whether there is not cooler pipe
choke by confirming air flow smooth.
Action : Remove foreign particles and clean inside of pipe
line.
Normal
Vehicle Speed Sensor
1. Remove the connector of vehicle speed sensor,
connect 12V power supply and voltmeter to the ter-
minal.(Do not mistake polarity)
2. Check voltage change from approx. 0V to 12V with
vehicle speed sensor driven gear rotated.
Notice : The voltage change should be 4 times for 1 revo-
lution of the vehicle speed sensor driven gear.
Action : If the result of inspection is bad, replace the ve-
hicle speed sensor.

AISIN AUTOMATIC TRANSAXLE 5A2 – 47
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE (DTC) P0705
TRANSMISSION RANGE (TR) SWITCH CIRCUIT
MALFUNCTION
Conditions for Setting the DTC
S TCM detects more than two equal signals from the
Park/Neutral Position switch circuit for 10 seconds
continuously.
S TCM detects the no signal of TR switch circuit for 2
seconds continuously.
S Vehicle speed is 30 km/h (19 mph) or greater.
S Engine revolution is 1500 rpm or greater.
Action Taken When the DTC Sets
S TCM will request the illumination of MIL and store
DTC when TCM detects failures on two consecu-
tive ignition cycle.
S TCM judges with the priority. (D>2>1>R>N>P)
S No timing solenoid control for N–D
S No self–learning control
S No lockupS No prevent reverse gear control
Conditions for Clearing the DTC
S The TCM turns off the MIL when no further failures
detected for three consecutive ignition cycles.
S The scan tool can clear the DTC from the TCM his-
tory.
S The TCM clears the DTC from the TCM history
memory after forty consecutive warm up cycles
without fault.
S TCM detects single ”D range” signal of the TR
switch.
Cause of Failure
S Wiring harness or connector between TR switch
and TCM
S TR switch
S TCM

5A2 – 50IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE (DTC) P0712
TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR
CIRCUIT LOW INPUT
Conditions for Setting the DTC
S TCM detects that A/D value of Transmission Fluid
Temperature sensor (TFT) signal is less than 10 for
5 minutes continuously after 1 time of this detec-
tion. (A/D VALUE 10: 24mV)
Action Taken When the DTC Sets
S TCM will request the illumination of MIL and store
DTC when TCM detects a failure on the first ignition
cycle.
S TCM judges the temperature of the transmission
fluid is 200°C (392°F).
S No lockup control
S No 4th gear
S No self–learning control
S No timing solenoid control N–DConditions for Clearing the DTC
S The TCM turns off the MIL when no further failures
detected for three consecutive ignition cycles.
S The scan tool can clear the DTC from the TCM his-
tory.
S The TCM clears the DTC from the TCM history
memory after forty consecutive warm up cycles
without fault.
S TCM detects the temperature of the transmission
fluid is between 0°C (32°) and 150°C (302°F) for
10 seconds continuously.
Cause of Failure
S Wiring harness or connector between Transmission
Fluid Temperature (TFT) sensor and TCM
S TFT sensor
S TCM