2004 DAEWOO LACETTI Automatic

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 7
DAEWOO V–121 BL4
RangePark/
Neutr
alRever
seD321
GearNR1st2nd3rd4th1st2nd3rd1st2nd1st
Solenoid Valve
1ONON/
OFFON/
OFFON/
OFFON/
OFFON/
OFFON/
OFFON/
OFFON/
OFFON/
OFFON/
OFFON/
OFF
Solenoid Valve
2ONONONOFFOFFOFFONOFFOFFONOFFON
Line Pressure
Control Sole-
noid Valve 3
(EDS 3)OFFOFFOFFONON/
OFFON/
OFFOFFONON/
OFFOFFONOFF
Line Pressure
Control Sole-
noid Valve 4
(EDS 4)ONOFFONONONOFFONONONONONON
Line Pressure
Control Sole-
noid Valve 5
(EDS 5)OFFOFFONONOFFOFFONONOFFONONON
Line Pressure
Control Sole-
noid Valve 6
(EDS 6)ONOFFONONONOFFONONONONONON
Brake BAAAAAAAA
Brake CH
Brake DH
Clutch EAAAAAA
Brake FHHHHHHH
Lock–up
ClutchA
A = Applied
H = Holding
ON = The solenoid is energized.
OFF = The solenoid is de–energized.
** = Manual Second–Third gear is only available above approximately 100 km/h (62 mph).
*** = Manual First–Second gear is only available above approximately 60 km/h (37 mph).
Note : Manual First–Third gear is also possible at high vehicle speed as a safety feature.
SHIFT SPEED CHART
Up Shift Speed
MODELFirst–Second gear (±3.0
mph (4.8km/h))Second–Third gear (±4.0
mph (6.4km/h))Third–Fourth gear (±5.0
mph (8km/h))
10%
TPS25%
TPS50%
TPS100%
TPS10%
TPS25%
TPS50%
TPS100%
TPS10%
TPS25%
TPS50%
TPS100%
TPS
1.8 DOHC
mph (km/h)9
(15)11
(18)18
(29)32
(52)18
(29)23
(37)34
(55)62
(99)25
(45)34
(55)47
(76)98
(157)

5A1 – 8IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Down Shift Speed
MODELDown Shift (±4.0 mph (6.4km/h))Lock Up Clutch Applied
(Fourth)Lock Up Clutch
Released
(Fourth)
Fourth–Th
ird
(Coast)Third–Sec
ond
(Coast)Second–Fi
rst
(Coast)10%25%10%25%
1.8 DOHC
mph (km/h)25 (41)13 (21)7 (11)48 (77)48 (77)42 (68)42 (68)
LINE PRESSURE
Gear RangeSolenoidLine PressureB PortE Port
Park / NeutralONLOW90~124.7 psi
(6.2~8.6 bar)
OFFHIGH221.9~252.3 psi
(15.3~17.4 bar)
ReverseONLOW89.9~124.7 psi
(6.2~8.6 bar)
OFFHIGH221.9~252.3 psi
(15.3~17.4 bar)
DriveONLOW90~124.7 psi
(6.2~8.6 bar)
OFFHIGH137.7~162.4 psi
(9.5~11.2 bar)
3ONLOW90~124.7 psi
(6.2~8.6 bar)90~124.7 psi
(6.2~8.6 bar)
OFFHIGH221.9~252.3 psi
(15.3~17.4 bar)137.7~162.4 psi
(9.5~11.2 bar)
2ONLOW90~124.7 psi
(6.2~8.6 bar)
OFFHIGH137.7~162.4 psi
(9.5~11.2 bar)
1ONLOW90~124.7 psi
(6.2~8.6 bar)
OFFHIGH221.9~252.3 psi
(15.3~17.4 bar)

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 9
DAEWOO V–121 BL4
SPECIAL TOOLS
SPECIAL TOOLS TABLE
Scan Tool
DW110–060
Engine Support Fixture
DW260–020
Transaxle Holding
Fixture
DW260–010
Transaxle Support
Fixture
DW260–030
Axle Seal Installer
DW260–050
Park/Neutral Position
Switch Installer
DW260–060
Brake F Split Stop Ring
Remover/Installer
DW260–070
Transaxle Fluid Plug
Remover/Installer

5A1 – 10IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DW240–010
Universal Pressure
Gauge Set
DW260–150
Clutch E Stop Ring
Remove/Installer
DW260–140
Clutch B Stop Ring
Remover/Installer
DW260–160
Brake C/D Snap Ring
Remover/Installer
DW260–080
Clutch B/E Shim
Setting Gauge
DW260–120
Clutch B
Adjust Ring
DW260–130
Clutch E
Adjust Ring
DW260–100
Clutch B/E
Disc Thickness
Measuring Fixture
DW260–090
Clutch B/E (Snap Ring
Play, Installation
Space) Measuring
Fixture
DW260–110
Brake F Disc Clearance
Measuring Bar

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 11
DAEWOO V–121 BL4
SCHEMATIC AND ROUTING DIAGRAMS
TRANSAXLE CONTROL MODULE (1 OF 2)

5A1 – 12IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
TRANSAXLE CONTROL MODULE (2 OF 2)
Switch

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 13
DAEWOO V–121 BL4
SHIFT MODE DIAGRAM
Economic Mode (1.8 DOHC)

5A1 – 14IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Lock–up Clutch Applied (Economic Mode ; Fourth Gear)
(1.8 DOHC)