Page 1550 of 2643

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 201
DAEWOO V–121 BL4
DRIVE AXLE OIL SEAL
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the drive axles. Refer to Section 3A, Auto-
matic Transaxle Drive Axle.
Notice : Be careful not to damage the bore of the transaxle
case.
3. Remove the transaxle drive seal using a screwdriv-
er. If necessary, crush the seal first with the screw-
driver in order to loosen the seal from the case.
Tools Required
DW260–030 Axle Seal Installer
Installation Procedure
1. Install the transaxle drive seal using the axle seal
installer DW260–030.
2. Install the drive axles. Refer to Section 3A, Auto-
matic Transaxle Drive Axle.
3. Connect the negative battery cable.
OIL PAN, OIL PAN GASKET
Tools Required
DW260–070 Plug Remover/Installer
Removal Procedure
1. Disconnect the negative battery cable.
2. Raise and suitably support the vehicle.
3. Remove the engine under cover. Refer to Section
9N, Frame and Underbody.
4. Place a fluid container below the fluid drain plug.
5. Remove the transaxle fluid drain plug using the
plug remover/installer DW260–070 and drain the
transaxle fluid.
6. Remove the oil cooler inlet and outlet pipes. Refer
to ”Oil Cooler Pipe/Hose” in this section.
Page 1551 of 2643
5A1 – 202IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
7. Remove the oil pan and oil pan gasket.
Installation Procedure
1. Install the oil pan, oil pan gasket and bolts.
Tighten
Tighten the oil pan bolts to 6 NSm (53 lb–in).
2. Install the oil cooler inlet and outlet pipes. Refer
to”Oil Cooler Pipe/Hose” in this section.
3. Install the transaxle fluid drain plug using the plug
remove/installer DW260–070.
4. Install the engine under cover. Refer to Section 9N,
Frame and Underbody.
5. Refill the transaxle fluid. Refer to ”Transaxle Fluid
Level Checking Procedure” in this section.
6. Connect the negative battery cable.
Page 1552 of 2643
ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 203
DAEWOO V–121 BL4
CONTROL VALVE BODY ASSEMBLY
Tools Required
DW260–070 Plug Remover/Installer
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the transaxle wiring harness and the
park/neutral position switch electrical connector.
3. Raise and suitably support the vehicle.
4. Remove the engine under cover. Refer to Section
9N, Frame and Underbody.
5. Remove the transaxle fluid drain plug using the
plug remover/installer DW260–070 and drain the
transaxle fluid.
6. Remove the oil pan, oil pan gasket. Refer to ”Oil
Pan, Oil Pan Gasket” in this section.
7. Remove the valve body mounting bolts.
8. Remove the automatic transmission input speed
sensor mounting bolt.
9. Remove the automatic transmission output speed
sensor mounting bolt.
Page 1554 of 2643
ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 205
DAEWOO V–121 BL4
7. Lower the vehicle.
8. Connect the transaxle wiring harness and the PNP
switch electrical connector.
9. Refill the transaxle fluid. Refer to ”Transaxle Fluid
Level Checking Procedure” in this section.
10. Connect the negative battery cable.
LEFT TRANSAXLE MOUNTING
BRACKET
Tools Required
DW110–060 Engine Support Fixture
Removal Procedure
1. Remove the battery. Refer to Section 1E, Engine
Electrical.
2. Install the engine support fixture DW110–060.
3. Remove the left transaxle mounting bolts.
4. Remove the left transaxle mount bracket cage bolts
and nut.
5. Remove the transaxle mounting bracket.
Page 1555 of 2643
5A1 – 206IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Installation Procedure
1. Install the left transaxle mount bracket cage bolts
and nut.
Tighten
S Tighten the left transaxle mount bracket cage
bolt (a) to 110 NSm (81 lb–ft).
S Tighten the left transaxle mount bracket cage
bolt (b) to 65 NSm (48 lb–ft).
S Tighten the nut (c) to 65 NSm (48 lb–ft).
2. Install the left transaxle mounting bolts to 48 NSm
(35 lb–ft).
3. Remove the engine support fixture DW110–060.
4. Install the battery. Refer to Section 1E, Engine
Electrical.
TRANSAXLE ASSEMBLY
Tools Required
DW110–060 Engine Support Fixture
DW260–010 Transaxle Support Fixture
Removal Procedure
1. Disconnect the negative battery cable.
2. Position the select lever park position.
3. Remove the battery. Refer to Section 1E, Engine
Electrical.
4. Install the engine support fixture DW110–060.
Page 1560 of 2643
ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 211
DAEWOO V–121 BL4
12. Install the upper transaxle–to–engine bolts.
Tighten
Tighten the upper transaxle–to–engine bolts to 75
NSm (55 lb–ft).
13. Install the clips to the shift control cable and con-
nect the shift cable.
14. Install the park/neutral position switch electrical
connector.
15. Connect the transaxle wiring harness to the trans-
axle.
16. Remove the engine support fixture DW110–060.
17. Install the battery. Refer to Section 1E, Engine
Electrical.
18. Add the transaxle fluid. Refer to ”Transaxle Fluid
Level Checking Procedure” in this section.
19. Connect the negative battery cable.
Page 1591 of 2643

SECTION : 5A2
AISIN AUTOMATIC TRANSAXLE
CAUTION : Disconnect the negative battery cable before removing or installing any electrical unit or when a tool
or equipment could easily come in contact with exposed electrical erminals. Disconnecting this cable will help
prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwise noted.
TABLE OF CONTENTS
SPECIFICATIONS5A2–3 . . . . . . . . . . . . . . . . . . . . . . . . .
General Specifications 5A2–3. . . . . . . . . . . . . . . . . . . .
Transaxle Gear Ratio 5A2–3. . . . . . . . . . . . . . . . . . . . . .
Fluid Capacity 5A2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Line Pressure Specification 5A2–3. . . . . . . . . . . . . . . .
Fastener Tightening Specifications 5A2–4. . . . . . . . . .
SPECIAL TOOLS5A2–5 . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools Table 5A2–5. . . . . . . . . . . . . . . . . . . . . . .
SCHEMATIC DIAGRAMS5A2–8 . . . . . . . . . . . . . . . . . . .
Transmission Control Module (1 of 4) 5A2–8. . . . . . . .
Transmission Control Module (2 of 4) 5A2–9. . . . . . . .
Transmission Control Module (3 of 4) 5A2–10. . . . . . .
Transmission Control Module (4 of 4) 5A2–11. . . . . . .
Shift Mode Diagram 5A2–12. . . . . . . . . . . . . . . . . . . . . .
COMPONENT LOCATOR5A2–17 . . . . . . . . . . . . . . . . . .
Shift Select Control 5A2–17. . . . . . . . . . . . . . . . . . . . . .
Automatic Transaxle Components 5A2–18. . . . . . . . .
Bearing and Races Installation Position
Direction 5A2–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS5A2–25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Connector View 5A2–25. . . . . . . . . . . . . . . . .
Wiring Harness and Connector Inspection 5A2–27. . .
Road Test 5A2–27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Function Check 5A2–28. . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Inspection 5A2–30. . . . . . . . . . . . . . . . . . . . . . . . . .
On–Vehicle Repair (Matrix Chart) 5A2–34. . . . . . . . . .
DIAGNOSIS TROUBLE CODE DIAGNOSIS5A2–36 .
Diagnosis Trouble Code Chart 5A2–36. . . . . . . . . . . . .
DTC P0562 System Voltage Low 5A2–37. . . . . . . . . .
DTC P0563 System Voltage High 5A2–40. . . . . . . . . .
DTC P0601 Internal Control Module Memory
Checksum Error 5A2–43. . . . . . . . . . . . . . . . . . . . . . .
DTC P0604 Internal Transmission Control Module
(TCM) Random Access Memory (RAM)
Error 5A2–45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DTC P0705 Transmission Range (TR) Switch
Circuit Malfunction 5A2–47. . . . . . . . . . . . . . . . . . . . .
DTC P0712 Transmission Fluid Temperature
(TFT) Sensor Circuit Low Input 5A2–50. . . . . . . . . .
DTC P0713 Transmission Fluid Temperature
(TFT) Sensor Circuit High Input 5A2–53. . . . . . . . . .
DTC P0717 Input Shaft Speed (ISS) Sensor
Circuit No Signal 5A2–56. . . . . . . . . . . . . . . . . . . . . . .
DTC P0722 Ouput Shaft Speed (OSS) Sensor
Circuit No Signal 5A2–59. . . . . . . . . . . . . . . . . . . . . . .
DTC P0727 Engine Speed Input Circuit No
Signal 5A2–62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0741 Torque Converter Clutch (TCC)
Circuit Stuck Off 5A2–65. . . . . . . . . . . . . . . . . . . . . . .
DTC P0742 Torque Converter Clutch (TCC)
Circuit Stuck On 5A2–67. . . . . . . . . . . . . . . . . . . . . . .
DTC P0743 Torque Converter Clutch (TCC)
Electrical 5A2–69. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0748 Pressure Control Solenoid (PCS)
Electrical 5A2–72. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0751 Shift Solenoid 1 (SS1) Stuck Off 5A2–75
DTC P0753 Shift Solenoid 1 (SS1) Electrical 5A2–77
DTC P0756 Shift Solenoid 2 (SS2) Stuck Off 5A2–80
DTC P0758 Shift Solenoid 2 (SS2) Electrical 5A2–82
DTC P0785 Timing Solenoid (ST) Electrical 5A2–85.
DTC P1781 Engine Torque Signal Error 5A2–88. . . . .
DTC P1791 Throttle Position Signal Error 5A2–91. . .
DTC P1792 Engine Coolant Temperature (ECT)
Signal Error 5A2–93. . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC U2105 Can Error 5A2–95. . . . . . . . . . . . . . . . . . . .
MAINTENANCE AND REPAIR5A2–97 . . . . . . . . . . . . .
ON–VEHICLE SERVICE 5A2–97. . . . . . . . . . . . . . . . . . .
Transaxle Fluid Level Checking Procedure 5A2–97. .
Fluid Drain Procedure 5A2–97. . . . . . . . . . . . . . . . . . . .
Locating Fluid Leaks 5A2–98. . . . . . . . . . . . . . . . . . . . .
Case Porosity Repair 5A2–98. . . . . . . . . . . . . . . . . . . . .
Fluid Cooler Flushing 5A2–99. . . . . . . . . . . . . . . . . . . . .
Control Cable Adjustment 5A2–99. . . . . . . . . . . . . . . . .
Page 1622 of 2643

5A2 – 32IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Shift Solenoid (NO.1,2), Timing Solenoid,
Lock–Up Solenoid
1. Inspect the resistance of each shift solenoid be-
tween the terminal and the body earth.
Action : If the result of inspection is bad, replace each so-
lenoid.
Notice :
S Make sure to inspect resistance again at 20°C
(68°F) when resistance differ from standards ex-
cept 20°C (68°F).
S It might become infinity ohm when inspecting resist-
ance at higher temperature.
2. Inspect the operation of each shift solenoid.
S Solenoid (No.1,2), Lock–up solenoid (Normal
open type)
No battery connection
Leak air
Battery connectionNo leak air
S Timing solenoid (Normal close type)
No battery connection
No leak air
Battery connectionLeak air
Action : If the result of inspection is bad, replace the each
solenoid.
Notice : Do not damage the strainer on the tip of solenoid
while inspecting operation.
Pressure Control Solenoid
S Inspect the resistance of each pressure control so-
lenoid between terminals.
Action : Repalce the valve body assembly. (No replace-
ment of solenoid by itself)
Notice :
S Make sure to inspect resistance again at 20°C
(68°F) when resistance differ from standards ex-
cept 20°C (68°F).
S It might become infinity ohm when inspecting resist-
ance at higher temperature.