head lamp DAEWOO LACETTI 2004 Service User Guide

1F – 598IENGINE CONTROLS
DAEWOO V–121 BL4
Installation Procedure
1. Install the new fuel filter into the retaining clamp.
Note the flow direction.
2. Install the fuel filter.
3. Connect the inlet/outlet lines. Secure the lines with
the connector lock.
4. Install the fuel filter cover.
5. Install the fuel filter mounting bracket assembly bolt
with the fuel filter ground.
Tighten
Tighten the fuel filter mounting bracket assembly
bolts to 4 NSm (35 lb–ft).
6. Connect the negative battery cable.
7. Perform a leak test of the fuel filter.
FUEL RAIL AND INJECTORS
(1.4L/1.6L DOHC)
Removal Procedure
CAUTION : The fuel system is under pressure. To
avoid fuel spillage and the risk of personal injury or
fire, it is necessary to relieve the fuel system pressure
before disconnecting the fuel lines.
1. Relieve the fuel system pressure. Refer to ”Fuel
Pump”in this section.
2. Disconnect the negative battery cable.
3. Remove the intake manifold bracket bolts.
4. Remove the intake manifold bracket.
5. Disconnect the fuel injector harness connectors.
6. Remove the fuel feed line.
7. Remove the fuel rail mounting bolts.
Notice : Before removal, the fuel rail assembly may be
cleaned with a spray–type cleaner, following package in-
structions. Do not immerse the fuel rails in liquid cleaning
solvent. Use care in removing the fuel rail assembly to pre-
vent damage to the electrical connectors and the injector
spray tips. Prevent dirt and other contaminants from enter-
ing open lines and passages. Fittings should be capped
and holes plugged during service.
Important : If an injector becomes separated from the rail
and remains in the cylinder head, replace the injector O–
ring seals and the retaining clip.

1F – 630IENGINE CONTROLS
DAEWOO V–121 BL4
COMPREHENSIVE COMPONENT
MONITOR DIAGNOSTIC OPERATION
Comprehensive component monitoring diagnostics are
required to monitor emissions–related input and output
powertrain components.
Input Components
Input components are monitored for circuit continuity and
out–of–range values. This includes rationality checking.
Rationality checking refers to indicating a fault when the
signal from a sensor does not seem reasonable, i.e.
Throttle Position (TP) sensor that indicates high throttle
position at low engine loads or Manifold Absolute Pressure
(MAP) voltage. Input components may include, but are not
limited to, the following sensors:
S Vehicle Speed Sensor (VSS).
S Crankshaft Position (CKP) sensor.
S Throttle Position (TP) sensor.
S Engine Coolant Temperature (ECT) sensor.
S Camshaft Position (CMP) sensor.
S Manifold Absolute Pressure (MAP) sensor.
In addition to the circuit continuity and rationality check,
the ECT sensor is monitored for its ability to achieve a
steady state temperature to enable closed loop fuel con-
trol.
Output Components
Output components are diagnosed for proper response to
control module commands. Components where functional
monitoring is not feasible will be monitored for circuit conti-
nuity and out–of–range values if applicable. Output com-
ponents to be monitored include, but are not limited to the
following circuit:
S Idle Air Control (IAC) Motor.
S Control module controlled EVAP Canister Purge
Valve.
S A/C relays.
S Cooling fan relay.
S VSS output.
S MIL control.
Refer to ”Engine Control Module” and Sensors in this sec-
tion.
Passive and Active Diagnostic Tests
A passive test is a diagnostic test which simply monitors
a vehicle system or component. Conversely, an active
test, actually takes some sort of action when performing
diagnostic functions, often in response to a failed passive
test. For example, the Exhaust Gas Recirculation (EGR)
diagnostic active test will force the EGR valve open during
closed throttle deceleration and/or force the EGR valve
closed during a steady state. Either action should result in
a change in manifold pressure.
Intrusive Diagnostic Tests
This is any on–board test run by the Diagnostic Manage-
ment System which may have an effect on vehicle perfor-
mance or emission levels.
Warm–Up Cycle
A warm–up cycle means that engine temperature must
reach aminimum of 160°F (70°C) and rise at least 72°F
(22°C) over the course of a trip.
Freeze Frame
Freeze Frame is an element of the Diagnostic Manage-
ment System which stores various vehicle information at
the moment an emissions–related fault is stored in
memory and when the Malfunction Indicator Lamp (MIL)
is commanded on. These data can help to identify the
cause of a fault.
Failure Records
Failure Records data is an enhancement of the EOBD
Freeze Frame feature. Failure Records store the same ve-
hicle information as does Freeze Frame, but it will store
that information for any fault which is stored in onboard
memory, while Freeze Frame stores information only for
emission–related faults that command the MIL on.
COMMON EOBD TERMS
Diagnostic
When used as a noun, the word diagnostic refers to any
on–board test run by the vehicle’s Diagnostic Manage-
ment System. A diagnostic is simply a test run on a system
or component to determine if the system or component is
operating according to specification. There are many diag-
nostics, shown in the following list:
S Misfire
S Front Heated Oxygen Sensor (HO2S1)
S Rear Heated Oxygen Sensor (HO2S2)
S Exhaust Gas Recirculation (EGR)
S Catalyst monitoring
Enable Criteria
The term ”enable criteria” is engineering language for the
conditions necessary for a given diagnostic test to run.
Each diagnostic has a specific list of conditions which
must be met before the diagnostic will run.
”Enable criteria” is another way of saying ”conditions re-
quired.”
The enable criteria for each diagnostic is listed on the first
page of the Diagnostic Trouble Code (DTC) description
under the heading ”Conditions for Setting the DTC.” En-
able criteria varies with each diagnostic and typically in-
cludes, but is not limited to, the following items:
S Engine speed.
S Vehicle speed
S Engine Coolant Temperature (ECT)
S Manifold Absolute Pressure (MAP)

POSITION OF CONNECTORS AND GROUNDSW2–3
2) CONNECTOR INFORMATION
Connector
Number
Te r m i n a l
NumberColorConnecting Wiring
HarnessConnector Position
C10121 PinWhiteBody
Engine Fuse BlockEngine Fuse Block
C10211 P i nWhiteBody
Engine Fuse BlockEngine Fuse Block
C10310 PinWhiteEngine
Engine Fuse BlockEngine Fuse Block
C10424 PinWhiteFront
Engine Fuse BlockEngine Fuse Block
C1054 PinWhiteBody
Engine Fuse BlockEngine Fuse Block
C10620 PinWhiteEngine
Engine Fuse BlockEngine Fuse Block
C1072 PinWhiteABS
Engine Fuse BlockEngine Fuse Block
C10824 PinBlackBody
EngineLeft Engine Fuse Block
C1094 PinWhiteEngine
FrontUnder Engine Fuse Block
C11012 PinWhiteABS
BodyBelow Engine Fuse Block
C 1112 PinBlackABS
FrontBelow Engine Fuse Block
C1122 PinBlackFront – HornCenter Cross Member Panel
C11316 PinBlackBody
FrontBehind ECM Bracket
C20176 PinBlackI.P
I.P Fuse BlockI.P Fuse Block
C20289 PinWhiteI.P
BodyLeft CO–Driver Leg Room
C2048 PinWhiteRoof
Body (W/O Rain Sensor)Left CO–Driver Leg Room
C20414 PinWhiteRoof
Body(W/ Rain Sensor)Left CO–Driver Leg Room
C20622 PinWhiteI.P
TCMUpper Driver Leg Room
C2076 PinWhiteAir Bag
I.PUpper Left Driver Leg Room
C20815 PinWhiteI.P
FAT CBehind Glove Box
C20920 PinBlackFAT C
FAT C . A u xBetween Heater Core and
Evaporator Core
C2106 PinWhiteI.P
ConsoleBelow Console Box
C3018 PinWhiteAir Bag
BodyFront SDM
C3024 PinBlackRR. ABS
BodyCenter Rear Cross Member
C35133 PinGrayBody
Front Light DoorUnder CO–Driver A Pillar
C36133 PinGrayBody
Front Right DoorUnder Driver A Pillar
C37112 PinWhiteBody
Rear Light DoorUnder Left B Pillar
C38112 PinWhiteBody
Rear Right DoorUnder Right B Pillar
C401 (N/B)8 PinWhiteTrunk
BodyInside Right Trunk Side Cover
C401 (H/B)6 PinWhiteTrunk
BodyInside Right Trunk Side Cover
C4026 PinWhiteTrunk LID
BodyInside Right Trunk Side Cover
C4036 PinWhiteT/Gate. EXT. – BodyInside Left C Pillar
C4048 PinWhiteT/Gate. EXT. – BodyInside Left C Pillar
C4058 PinWhiteT/Gate. EXT. – T/GateBeside Left Rear Wiper Motor
C4066 PinWhiteT/Gate. EXT. – T/GateBeside Left Rear Wiper Motor
3) GROUND INFORMATION
Ground Number
Wiring HarnessGround Position
G101FrontBehind Left Head Lamp
G102FrontBehind Right Head Lamp
G103BatteryLeft Battery
G104EngineUnder Start Motor
G105BatteryUnder Start Motor
G106ABSBelow EBCM
G107Engine(MR–140/HV–240)Under Start Motor
G201I.PLeft I/P Fuse Block
G202Air BagBehind Left Audio Bracket
G203I.PBehind Left Audio Bracket
G205RoofUpper Driver Leg Room
G301BodyBelow Driver Cross Member Floor Panel
G302BodyBelow Left C Pillar
G303BodyBelow Left CO–Driver Leg Room
G401TrunkCenter Trunk Lower Back Panel
G402T/Gate. EXT.Inside Driver C Pillar
4) SPLICE PACK INFORMATION
Splice Pack Number
ColorWiring HarnessGround Position
S101BlackEngine(MR–140/HV–240)Upper Transmission
S202BlackI.PBehind Cluster
S203RedI.PBehind Audio Mounting
S204MagentaI.PBehind Audio Mounting
S205OrangeTCM (MR–140/HV–240)Upper Driver Leg Room
S301BlueBodyLeft CO–Driver Leg Room
S302BrownBodyLeft CO–Driver Leg Room

4–2WUSAGE AND CAPACITY OF FUSES IN FUSE BLOCK
1. ENGINE ROOM RELAY AND FUSE BLOCK
1) POSITION OF RELAY AND FUSE
2) USAGE OF FUSE IN ENGINE FUSE BLOCK
Power
Supply
ClassificationFuse
NoCapacityUsage
Ef130ABattery Main(F13~F16, F21~F24)
Ef260AEBCM, Oil Feeding Conenctor
Ef330ABlower Relay
30SBEf430AIgnition Switch–2
BAT (+)(Slow–BlownEf530AIgnition Switch–1
Fuse)Ef620ACooling Fan Low Relay
Ef730ADefog Relay
Ef830ACooling Fan HI Relay
IGN2 (15A)Ef920APower Window Switch
IGN1 (15)Ef1015AFuel Connector, ECM (MR–140), LEGR, EI
System
30Ef1110AECM, Main Relay (Sirius D4)
BAT(+)Ef1225AHead lamp Relay, ILLUM. Relay
Ef1315ABrake Switch
IGN2 (15A)Ef1420APower Window Switch
56 LIGHTEf1515AHead Lamp HI
30Ef1615AHorn Relay, siren, Hood Contact Switch
BAT(+)Ef1710AA/C Comp. Relay
IGN1 (15)Ef1815AFuel Pump
30 BAT(+)Ef1915ACluster, Key Remind S/W, Folding Mirror Unit, MAP
Lamp, Room Lamp, Trunk Open lamp, Trunk
Open S/W
56 LIGHTBlade TypeEf2010AHead Lamp Low
IGN1 (15)/FuseEf2115AEVAP Canister Purge Solenoid, HO2S, Cooling
Fan Relay
30 BAT(+)Ef2215Ainjector, EGR, EEGR
ILLUM. (58)Ef2310ALicense Plate Lamp, Chime Bell, Tail Lamp, Head
Lamp
30 BAT (+)Ef2415AFog Lamp Relay
IGN2 (15A)Ef2510AElectric OSRV Mirror
30 BAT (+)Ef2615ACentral Door Lock Unit
56 LIGHTEf2710AHead Lamp Low
ILLUM. (58)Ef2810AILLUM. Circuit, Head Lamp, Tail Lamp
SPAREEf2910ANot Used
Ef3015ANot Used
Ef3125ANot Used

USAGE AND CAPACITY OF FUSES IN FUSE BLOCKW4–3
2. I.P FUSE BLOCK
1) POSITION OF FUSE AND RELAY
2) USAGE OF FUSE IN I.P FUSE BLOCK
Power
Supply
ClassificationFuse
NoCapacityUsage
IGN1 (15)Blade TypeF110ASDM
FuseF210ATCM, ECM, Generator, VGIS,VSS
F315AHazard Switch
F410ACluster, Chime Bell, Brake Switch, SSPS Module,
A/C Control Switch
–F5––
IGN2 (15A)F610AA/C Comp. Relay, Defog Relay, Power Window
Relay, Head Lamp Relay
F720ABlower Relay, A/C Control Switch, FATC
F815AElectric Mirror Switch, Folding Mirror, Sun Roof
Module
IGN1 (15)F925AWiper Motor, Wiper Switch
–F10––
IGN1 (15)F1110AEBCM, Oil Feeding Connector
F1210AImmobilizer, Anti Theft Control Unit, Rain Sensor
Unit
30 BAT(+)F1310ATCM
F1415AHazard Switch
F1515AAnti Theft Control Unit
F1610ADLC
ACC (15C)F1710AAudio, Clock
F1815AExtra Power Jack
F1915ACigar Lighter
IGN1 (15)F2010AReverse Lamp Switch, PNP Switch
30 BAT(+)F2115ARear Fog Relay
F2215AClock, FATC, A/C Control Switch
F2315AAudio
F2410AImmobilizer

4–4WUSAGE AND CAPACITY OF FUSES IN FUSE BLOCK
3. POSITION OF CONTROL UNIT, RELAY AND PART NUMBER
1) ENGINE FUSE BLOCK
Part Name
Part No.Remarks
Front Fog Relay96190187
ILLUM. Relay96190187
Cooling Fan Low Relay96190189
Cooling Fan HI Relay96190189
A/C Comp. Relay96190187
Horn Relay96190187
Defog Relay96190189
Fuel Relay96190189
Main/Ignition Relay96190189
Power Window Relay96190189
Head Lamp Relay96190189
2) BEHIND DRIVER LEG ROOM CONNECTOR HOLDER
Part Name
Part No.Remarks
Rear Fog Relay96344573
PNP Relay96190189
Blink Unit96312545
Blower Relay96190189
3) DRIVER LEG ROOM
Part Name
Part No.Remarks
Chime Bell96459510
TCM (MR–140/HV–240)96342619
TCM (SIRIUS D4)96497032
4) BEHIND LEFT HEAD LAMP
Part Name
Part No.Remarks
Cooling Fan Control Relay96251271
5) UNDER LEFT PASSENGER LEG ROOM
Part Name
Part No.Remarks
Central Door Lock Unit96552824
6) FLOOR PANEL BELOW CONSOLE
Part Name
Part No.Remarks
Anti Theft Control Unit96407681Wes t Euro
96404668General
SDM96406712
7) BESIDE ENGINE FUSE BLOCK
Part Name
Part No.Remarks
EBCM96549742

5–4WELECTRICAL WIRING DIAGRAMS
8. FATC (FULL AUTOMATIC TEMPERATURE CONTROL) 5–68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1) BLOWER MOTOR, INTAKE MOTOR, MODE MOTOR, MAX HIGH RELAY & POWER TR CIRCUIT 5–68. . . .
2) SENSOR(AMBIENT,INCAR,SUN&WATER), AIR MIX DOOR MOTOR, A/C COMPRESSOR & ECM
CIRCUIT5–70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–1) MR–140/HV–2405–70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–2) SIRIUS D45–72 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9. RADIATOR COOLING FAN CIRCUIT 5–74. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1) COOLING FAN CIRCUIT(MR–140/HV–240) : DUAL 5–74. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2) COOLING FAN CIRCUIT(MR–140/HV–240) : SINGLE 5–76. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3) COOLING FAN CIRCUIT(SIRIUS D4) : DUAL 5–78. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4) COOLING FAN CIRCUIT(SIRIUS D4) : SINGLE 5–80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10. HEAD LAMP & HEAD LAMP LEVELING DEVICE(HLLD) CIRCUIT 5–82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1) NOTCH BACK5–82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2) HATCH BACK5–84 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11. ILLUMINATION CIRCUIT5–86 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1) ILLUMINATION CIRCUIT– W/O DIMMER CONTROL 5–86. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2) ILLUMINATION CIRCUIT– W/ DIMMER CONTROL 5–88. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3) LAMP(LICENSE PLATE & W/ FRONT/REAR POSITION) CIRCUIT : NOTCH BACK 5–90. . . . . . . . . . . . . . . . . .
4) LAMP(LICENSE PLATE & W/ FRONT/REAR POSITION) CIRCUIT : HATCH BACK 5–92. . . . . . . . . . . . . . . . . .
12. FRONT & REAR FOG LAMP CIRCUIT 5–94. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1) NOTCH BACK5–94 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2) HATCH BACK5–96 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13. HAZARD & TURN SIGNAL LAMP CIRCUIT 5–98. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1) NOTCH BACK5–98 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2) HATCH BACK5–100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5–66WELECTRICAL WIRING DIAGRAMS
2) AIR CONDITIONER CONTROL SWITCH, INTAKE MOTOR & AIR CONDITIONER
COMPRESSOR CIRCUITa. CONNECTOR INFORMATION
CONNECTOR(NO.)
(PIN NO. COLOR)
CONNECTING, WIRING HARNESSCONNECTOR POSITION
C101 (21 Pin, White)Body
Engine Fuse BlockEngine Fuse Block
C104 (24 Pin, White)Front
Engine Fuse BlockEngine Fuse Block
C106 (20 Pin, White)Engine
Engine Fuse BlockEngine Fuse Block
C201 (76 Pin, Black)I.P
I.P Fuse BlockI.P Fuse Block
C202 (89 Pin, White)I.P
BodyLeft CO–Driver Leg Room
S203 (Red)I.PBehind Audio Mounting
G102FrontBehind Right Head Lamp
G203I.PBehind Left Audio Bracket
b. CONNECTOR IDENTIFICATION SYMBOL & PIN NUMBER POSITION
J3B1P026

5–70WELECTRICAL WIRING DIAGRAMS
2) SENSOR (AMBIENT, INCAR, SUN & WATER), AIR MIX DOOR MOTOR, A/C COMPRESSOR &
ECM CIRCUIT
2–1) MR–140/HV–240
a. CONNECTOR INFORMATION
CONNECTOR(NO.)
(PIN NO. COLOR)
CONNECTING, WIRING HARNESSCONNECTOR POSITION
C101 (21 Pin, White)Body
Engine Fuse BlockEngine Fuse Block
C104 (24 Pin, White)Front
Engine Fuse BlockEngine Fuse Block
C105 (4 Pin, White)Body
Engine Fuse BlockEngine Fuse Block
C106 (20 Pin, White)Engine
Engine Fuse BlockEngine Fuse Block
C108 (24 Pin, Black)Body
EngineLeft Engine Fuse Block
C113 (16 Pin, Black)Body
FrontBehind ECM Bracket
C201 (76 Pin, Black)I.P
I.P Fuse BlockI.P Fuse Block
C202 (89 Pin, White)I.P
BodyLeft CO–Driver Leg Room
C206 (22 Pin, White)I.P
TCMUpper Driver Leg Room
C208 (15 Pin, White)I.P
FAT CBehind Glove Box
C209 (20 Pin, Black)FAT C
FAT C . A u xBetween Heater Core and Evaporator Core
S202 (Black)I.PBehind Cluster
S203 (Red)I.PBehind Audio Mounting
S204 (Magenta)I.PBehind Audio Mounting
G102FrontBehind Right Head Lamp
G203I.PBehind Left Audio Bracket
b. CONNECTOR IDENTIFICATION SYMBOL & PIN NUMBER POSITION

5–72WELECTRICAL WIRING DIAGRAMS
2–2) SIRIUS D4a. CONNECTOR INFORMATION
CONNECTOR(NO.)
(PIN NO. COLOR)
CONNECTING, WIRING HARNESSCONNECTOR POSITION
C101 (21 Pin, White)Body
Engine Fuse BlockEngine Fuse Block
C104 (24 Pin, White)Front
Engine Fuse BlockEngine Fuse Block
C105 (4 Pin, White)Body
Engine Fuse BlockEngine Fuse Block
C106 (20 Pin, White)Engine
Engine Fuse BlockEngine Fuse Block
C108 (24 Pin, Black)Body
EngineLeft Engine Fuse Block
C113 (16 Pin, Black)Body
FrontBehind ECM Bracket
C201 (76 Pin, Black)I.P
I.P Fuse BlockI.P Fuse Block
C202 (89 Pin, White)I.P
BodyLeft CO–Driver Leg Room
C206 (22 Pin, White)I.P
TCMUpper Driver Leg Room
C208 (15 Pin, White)I.P
FAT CBehind Glove Box
C209 (20 Pin, Black)FAT C
FAT C . A u xBetween Heater Core and Evaporator Core
S202 (Black)I.PBehind Cluster
S203 (Red)I.PBehind Audio Mounting
S204 (Magenta)I.PBehind Audio Mounting
G102FrontBehind Right Head Lamp
G203I.PBehind Left Audio Bracket
b. CONNECTOR IDENTIFICATION SYMBOL & PIN NUMBER POSITION