wiring DAEWOO LACETTI 2004 Service Repair Manual

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TABLE OF CONTENTS
Section 0B General Information
Section 1 Engine
Section 1A General Engine Information
Section 1C1 1.4L/1.6L DOHC Engine Mechanical
Section 1C2 1.8L DOHC Engine Mechanical
Section 1D Engine Cooling
Section 1E Engine Electrical
Section 1F Engine Controls
Section 1G Engine Exhaust
Section 2 Suspension
Section 2A Suspension Diagnosis
Section 2B Wheel Alignment
Section 2C Front Suspension
Section 2D Rear Suspension
Section 2E Tires and Wheels
Section 3 Driveline/Axle
Section 3A Automatic Transaxle Drive Axle
Section 3B Manual Transaxle Drive Axle
Section 4 Brakes
Section 4A Hydraulic Brakes
Section 4B Master Cylinder
Section 4C Power Booster
Section 4D Front Disc Brakes
Section 4E1 Rear Disc Brakes
Section 4E2 Rear Drum Brakes
Section 4F Antilock Brake System
Section 4G Parking Brake
Section 5 Transmission/Transaxle
Section 5A1 ZF 4HP16 Automatic Transaxle
Section 5A2 AISIN Automatic Transaxle
Section 5B Five-Speed Manual Transaxle
Section 5C Clutch
Section 6 Steering
Section 6A Power Steering System
Section 6B Power Steering PumpSection 6C Power Steering Gear
Section 6E Steering Wheel and Column
Section 7 Heating, Ventilation, and Air
Conditioning (HVAC)
Section 7A Heating and Ventilation System
Section 7B Manual Control Heating, Ventilation,
and Air Conditioning System
Section 7D Automatic Temperature Control HVAC
Section 8 Restraints
Section 8A Seat Belts
Section 8B Supplemental Inflatable Restraints
(SIR)
Section 9 Body and Accessories
Section 9A Body Wiring System
Section 9B Lighting Systems
Section 9C Horns
Section 9D Wipers/Washer Systems
Section 9E Instrumentation/Driver Information
Section 9F Audio Systems
Section 9G Interior Trim
Section 9H Seats
Section 9I Waterleaks
Section 9J Windnoise
Section 9K Squeaks and Rattles
Section 9L Glass and Mirrors
Section 9M Exterior Trim
Section 9N Frame and Underbody
Section 9O Bumpers and Fascias
Section 9P Doors
Section 9Q Roof
Section 9R Body Front End
Section 9S Body Rear End
Section 9T1 Remote Keyless Entry and Anti–Theft
System
Section 9T2 Immobilizer Anti–Theft System

SECTION 1
HOW TO USE ELECTRICAL WIRING DIAGRAM
CONTENTS
1. HOW TO READ ELECTRICAL WIRING DIAGRAM 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. CIRCUIT IDENTIFICATION SYMBOL 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. FUNCTION OF POWER SUPPLY LINE 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. WIRING HARNESS COLOR IDENTIFICATION 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. HOW TO CHECK TERMINAL NUMBER OF CONNECTOR 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–2WHOW TO USE ELECTRICAL WIRING DIAGRAM
1. HOW TO READ ELECTRIC WIRING DIAGRAM1) CONTENTS OF ELECTRICAL WIRING DIAGRAM (CIRCUIT)
POSITION
EXPLANATION
A" Upper horizontal lines : Power supply lines
" Power supply lines : 30, 15, 15A, 15C, 58
B" Ef20 or F2 : Fuse Number
S Ef20 : Fuse No #20 in engine room fuse box
S F2 : Fuse No #2 in passenger room fuse box
C" Connector (C101~C902)
S Connector No C203 terminal No1
S Refer to Major Connector Position (Section 2)
D" S201 : Splice pack (S101~S303)
S Refer to Major Splice Pack Position (Section2)
E" Internal circuit of component (Relay)
(Component Name and Terminal Number)
F" Internal circuit of component (switch)
(Component Name, Terminal Number and Connecting Wiring Circuit)
G" Wiring Harness Color
S Refer to Wiring Harness Color Abbreviation
H" Lower horizontal line : Ground line
S Ground position(G101~G401)
S B : Body Ground
S Refer to Major Ground Position (Section2)

HOW TO USE ELECTRICAL WIRING DIAGRAMW1–3
2. CIRCUIT IDENTIFICATION SYMBOL
IDENTIFICATION
SYMBOLMEANING
CConnector
DDiode
EfFuse in engine room fuse box
FFuse in passenger room fuse box
GGround
SSplice pack(Junction connector)
3. FUNCTION OF POWER SUPPLY LINE (NUMBER)
Power supply NoPower supply condition
15Battery Voltage(B+) supply in Ignition Switch ”ON” and ”ST” (IGN 1)
15ABattery Voltage(B+) supply in Ignition Switch ”ON” (IGN 2)
15CBattery Voltage(B+) supply in Ignition Switch ”ON” and ”ACC”
30Battery Voltage(B+) supply directly regardless of Ignition Switch
31Ground connected to battery(
)
58Battery Voltage(B+) supply in Head Lamp Switch 1st and 2nd step (Illumination circuit)
4. WIRING HARNESS COLOR IDENTIFICATION
AbbreviationColorAbbreviationColor
BrBrownSbSky Blue
GGreenRRed
VVioletLBlue
PPinkYYellow
WWhiteGrGray
OrOrangeBBlack
LgLight Green
5. HOW TO CHECK TERMINAL NUMBER OF CONNECTOR
" Terminal number is given based on Female Terminal Connectorex) Terminal Number 4 of C901 connection

1.4L/1.6L DOHC ENGINE MECHANICAL 1C1 – 15
DAEWOO V–121 BL4
MAINTENANCE AND REPAIR
ON–VEHICLE SERVICE
ENGINE COVER
Removal Procedure
1. Remove the bolts and nuts from the engine cover.
2. Remove the engine cover.
Installation Procedure
1. Position the engine cover on the engine.
2. Install the engine cover bolts and nuts.
Tighten
Tighten the engine cover bolts and nuts to 10 NSm(89
lb–ft).
CAMSHAFT COVER
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the engine cover. Refer to ”Engine” in this
section.
3. Remove the breather hose, ventilation hose and
cam position sensor wiring connector from the cam-
shaft cover.

1C1 – 16I1.4L/1.6L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
4. Remove the ignition wires from the spark plug.
5. Remove the camshaft cover bolts and camshaft
cover.
6. Remove the camshaft cover gasket.
Installation Procedure
1. Install the camshaft cover gasket on the camshaft
cover.
2. Position the camshaft cover on the engine block.
3. Install the camshaft cover bolts.
Tighten
Tighten the camshaft cover bolts to 10 NSm(89 lb–ft).
4. Install the ignition wires to the spark plugs and con-
nect the breather hose, ventilation hose and cam
position sensor wiring connector to the canshaft
cover.
5. Install the engine cover.
6. Connect the negative battery cable.
INTAKE MANIFOLD
Removal Procedure
1. Remove the fuel pump fuse.
2. Start the engine. After it stalls, crank the engine for
10 seconds to rid the fuel system of fuel pressure.
3. Disconnect the negative battery calbe.
4. Drain the engine coolant. Refer to Section 1D, En-
gine Cooling.
5. Remove the engine cover and throttle body. Refer
to Section 1F, Engine Control.

1C1 – 52I1.4L/1.6L DOHC ENGINE MECHANICAL
DAEWOO V–121 BL4
18. Connect the power steering pressure hose.
19. Connect the power steering return hose.
20. Install the A/C compressor, if equipped. Refer to
Section 7B, Manual Control Heating, Ventilation,
and Air Conditioning Systems.
21. Install the generator. Refer to Section 1E, Engine
Electrical.
22. Install the serpentine accessory drive belt. Refer to
Section 6B, Power Steering Pump.
23. Install the right front wheel well splash shield.
24. Install the right front wheel. Refer to Section 2E,
Tires and Wheels.
25. Connect the fuel feed line to the fuel rail.
26. Connect all of the necessary vacuum lines, includ-
ing the brake booster vacuum hose.
27. Connect the O2 sensor connector, if equipped.
28. Connect the starter solenoid ”S” terminal wire and
power lead.
29. Connect the generator voltage regulator connector
and power lead.
30. Connect the CTS connector.
31. Connect the MAP, MAT sensor connectors.
32. Connect the TPS connector.
33. Install the electrical wiring harness clamp at the
intake manifold support bracket.
34. Connect the fuel injector harness connectors.
35. Connect the electrical connector at the DIS coil and
the ECM ground terminal at the starter.
36. Install the air cleaner outlet hose between the
throttle body and the air cleaner housing.
37. Connect the breather tubes to the camshaft cover.
38. Install the cooling system radiator and the engine
cooling fans. Refer to Section 1D, Engine Cooling.

ENGINE ELECTRICAL 1E – 7
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
151. Disconnect the neutral safety back–up (PNP)
switch.
2. Connect the negative voltmeter lead to the
PNP switch connector terminal E.
3. Connect the positive voltmeter lead to battery
positive.
Does the voltmeter indicate the value specified?11–14 vGo to Step 16Go to Step 19
161. Jumper the PNP switch connector terminals 9
and 10.
2. Connect the negative voltmeter lead to the igni-
tion switch.
3. Connect the positive voltmeter lead to battery
positive.
Does the voltmeter indicate the value specified?11–14 vGo to Step 17Go to Step 18
17Replace the neutral safety backup switch.
Is the repair complete?–System OK–
18Repair the wire as needed.
Is the repair complete?–System OK–
19Repair the open wire between the PNP switch con-
nector terminal E and ground.
Is the repair complete?–System OK–
201. Connect the voltmeter positive lead to the igni-
tion switch connector terminal 3 by backprob-
ing the connector.
2. Connect the voltmeter negative lead to ground.
Does the voltmeter indicate the value specified?11–14 vGo to Step 22Go to Step 21
21Repair the open in the wiring between the engine
block fuse Ef5 and the ignition switch connector ter-
minal 2.
Is the repair complete?–System OK–
221. Connect the voltmeter positive lead to the igni-
tion switch connector terminal 3 by backprob-
ing the connector.
2. Connect the voltmeter negative lead to ground.
3. Turn the ignition to START.
Does the voltmeter indicate the value specified?11–14 vGo to Step 23Go to Step 27
231. Connect the voltmeter positive lead to the igni-
tion switch connector terminal 3 by backprob-
ing the connector.
2. Connect the voltmeter negative lead to ground.
Does the voltmeter indicate the value specified?11–14 vGo to Step 25Go to Step 24
24Repair the open in the wiring between the engine
block fuse Ef5 and the ignition switch connector ter-
minal 3.
Is the repair complete?–System OK–
251. Connect the voltmeter positive lead to the igni-
tion switch connector terminal 3 by backprob-
ing the connector.
2. Connect the voltmeter negative lead to ground.
3. Turn the ignition to START.
Does the voltmeter indicate the value specified?11–14 vGo to Step 26Go to Step 27

1E – 8IENGINE ELECTRICAL
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
26Repair the open in the wiring between the ignition
switch connector terminal 3 and the starter ”ST” ter-
minal.
Is the repair complete?–System OK–
27Replace the ignition switch.
Is the repair complete?–System OK–

1E – 10IENGINE ELECTRICAL
DAEWOO V–121 BL4
GENRATOR OUTPUT TEST
1. Perform the generator system test. Refer to ”Gen-
erator System Check”in this section.
2. Replace the generator if it fails that test. Refer to
”Generator” in the On–Vehicle Service portion of
this section. If it passes the test, perform the on–
vehicle output check which follows.
Important : Always check the generator for output before
assuming that a grounded ”L” terminal circuit has dam-
aged the regulator.
3. Attach a digital multimeter, an ammeter, and a car-
bon pile load to the vehicle.
Important : Be sure the vehicle battery is fully charged,
and the carbon pile load is turned off.
4. With the ignition switch in the OFF position, check
and record the battery voltage.
5. Remove the harness connector from the generator.
6. Turn the ignition to RUN with the engine not run-
ning. Use a digital multimeter to check for voltage in
the harness connector ”L” terminal.
7. The reading should be near the specified battery
voltage of 12 volts. If the voltage is too low, check
the indicator
L" terminal circuits for open and
grounded circuits causing voltage loss. Correct any
open wires, terminal connections, etc., as neces-
sary. Refer to”Charging System” in this section.
8. Attach the generator harness connector.
9. Run the engine at a moderate idle, and measure
the voltage across the battery terminals. The read-
ing should be above that recorded in step 14, but
less than 16 volts. If the reading is over 16 volts or
below the previous reading, replace the generator.
Refer to”Generator” in the On–Vehicle Service sec-
tion.
10. Run the engine at a moderate idle, and measure
the generator amperage output.
11. Turn on the carbon pile, and adjust it to obtain the
maximum amps while maintaining the battery volt-
age above 13 volts.
12. If the reading is within 15 amps of the generator’s
rating noted on the generator, the generator is
good. If not, replace the generator. Refer to”Gener-
ator” in the On–Vehicle Service section.
13. With the generator operating at the maximum out-
put, measure the voltage between the generator
housing and the battery negative terminal. The volt-
age drop should be 0.5 volt or less. If the voltage
drop is more than 0.5 volt, check the ground path
from the generator housing to the negative battery
cable.
14. Check, clean, tighten, and recheck all of the ground
connections.
GENERATOR SYSTEM CHECK
When operating normally, the generator indicator lamp will
come on when the ignition is in RUN position and go out
when the engine starts. If the lamp operates abnormally
or if an undercharged or overcharged battery condition oc-
curs, the following procedure may be used to diagnose the
charging system. Remember that an undercharged bat-
tery is often caused by accessories being left on overnight
or by a defective switch that allows a lamp, such as a trunk
or a glove box lamp, to stay on.
Diagnose the generator with the following procedure:
1. Visually check the belt and the wiring.
2. With the ignition in the ON position and the engine
stopped, the charge indicator lamp should be on. If
not, detach the harness at the generator and
ground the ”L” terminal in the harness with a 5–am-
pere jumper lead.
S If the lamp lights, replace the generator. Refer to
”Generator” in the On–Vehicle Service section.
S If the lamp does not light, locate the open circuit
between the ignition switch and the harness
connector. The indicator lamp bulb may be
burned out.
3. With the ignition switch in the ON position and the
engine running at moderate speed, the charge indi-
cator lamp should be off. If not, detach the wiring
harness at the generator.
S If the lamp goes off, replace the generator. Re-
fer to ”Generator” in the On–Vehicle Service
section.
S If the lamp stays on, check for a short to ground
in the harness between the connector and the
indicator lamp.
Important : Always check the generator for output before
assuming that a grounded ”L” terminal circuit has dam-
aged the regulator. Refer to”Generator” in the Unit Repair
section.