DAEWOO LACETTI 2004 Service Repair Manual

9E – 2IINSTRUMENTATION/DRIVER INFORMATION
DAEWOO V–121 BL4
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNSmLb–FtLb–In
Air Deflector Screws2–18
Chime Module Screws4–35
Clock Screws2–18
Cupholder Screws2.5–22
Deposit Box Screws2.5–22
Driver Knee Bolster Bolts10–89
Floor Console Brace Bolts4–35
Floor Console Brace Nuts4–35
HVAC Controls Screws4–35
Instrument Cluster Screws4–35
Instrument Cluster Trim Panel Screws4–35
Instrument Panel End Bolts2015–
Instrument Panel End Screws4–35
Instrument Panel Nuts Above the Steering Column2015–
Instrument Panel Bolts Behind the HVAC Controls4–35
Steering Column Bracket Nut2216–
Steering Column Lower Trim Cover Screws2.5–22
Steering Column U–Clamp Nuts2216–
Steering Column Upper Trim Cover Screws3–27
INSTRUMENT CLUSTER INDICATOR LAMPS
SPECIFICATIONS
Indicator LampColorBulb
ABS WarningAmber14 v 1.4 W
Airbag WarningRed14 v 1.4 W
Battery Charge IndicatorRed14 v 1.4 W
Check EngineAmber14 v 1.4 W
Door Open WarningRed14 v 1.4 W
Engine OverheatRed14 v 1.4 W
Fasten Seat Belt WarningRed14 v 1.4 W
High Beam IndicatorBlue14 v 1.4 W
Low Fuel Level WarningAmber14 v 4 W
Oil Pressure WarningRed14 v 1.4 W
Parking Brake Indicator and Brake Fluid WarningRed14 v 1.4 W
Service Engine Soon WarningAmber14 v 1.4 W
Transaxle Power Mode IndicatorAmber14 v 1.4 W
Turn Signal IndicatorsGreen14 v 1.4 W

INSTRUMENTATION/DRIVER INFORMATION 9E – 3
DAEWOO V–121 BL4
SCHEMATIC AND ROUTING DIAGRAMS
INSTRUMENT CLUSTER CIRCUIT (1 OF 2)
Rear Fog
Relay
ORN[N/B]
ORN/BLK[H/B][ ] : HATCHBACK
Anti–theft
Control
Unit

9E – 4IINSTRUMENTATION/DRIVER INFORMATION
DAEWOO V–121 BL4
INSTRUMENT CLUSTER CIRCUIT (2 OF 2)

INSTRUMENTATION/DRIVER INFORMATION 9E – 5
DAEWOO V–121 BL4
CIGAR LIGHTER AND EXTRA POWER JACK CIRCUIT

9E – 6IINSTRUMENTATION/DRIVER INFORMATION
DAEWOO V–121 BL4
DIAGNOSIS
CIGAR LIGHTER
Cigar Lighter Inoperative
StepActionValue(s)YesNo
1Check fuse F19.
Is the fuse blown?–Go to Step 2Go to Step 3
21. Check for a short circuit and repair it, if neces-
sary.
2. Replace the fuse.
Is the repair complete?–System OK–
31. Turn the ignition key to ACC.
2. Use a voltmeter to check for voltage at fuse
F19.
Does the battery voltage available at the fuse F19
match the value specified?11–14 vGo to Step 5Go to Step 4
4Repair the open power supply circuit for fuse F19.
Is the repair complete?–System OK–
51. Remove the electrical connector from the back
of the cigar lighter.
2. Turn the ignition key to ACC.
3. Use a voltmeter to check the voltage at the
ORN wire.
Does the battery voltage available at the YEL wire
match the value specified?11–14 vGo to Step 7Go to Step 6
6Repair the open circuit between fuse F19 and the ci-
gar lighter.
Is the repair complete?–System OK–
7With the ignition key still in the ACC position, con-
nect the voltmeter between the YEL and the BLK
wires at the cigar lighter connector.
Does the battery voltage match the value specified?11–14 vGo to Step 9Go to Step 8
8Repair the open ground circuit.
Is the repair complete?–System OK–
9Replace the cigar lighter.
Is the repair complete?–System OK–

INSTRUMENTATION/DRIVER INFORMATION 9E – 7
DAEWOO V–121 BL4
DIGITAL CLOCK
Digital Clock Inoperative
StepActionValue(s)YesNo
1Check fuses F17, Ef28 and F22.
Is either fuse F17, Ef28 and F22 blown?–Go to Step 2Go to Step 3
21. Check for a short circuit and repair it, if neces-
sary.
2. Replace the blown fuses.
Is the repair complete?–System OK–
31. Turn the ignition ON.
2. Use a voltmeter to check battery voltage avail-
able at fuses F17, Ef28 and F22.
Does the voltmeter indicate the value specified?11–14 vGo to Step 5Go to Step 4
4Repair the open power supply circuit for the fuse.
Is the repair complete?–System OK–
5Use a voltmeter to check the battery voltage avail-
able at the clock connector terminal 6.
Does the voltmeter indicate the value specified?11–14 vGo to Step 7Go to Step 6
6Repair the open circuit between the clock connector
terminal 2 and the fuse F22.
Is the repair complete?–System OK–
7Turn the ignition ON.
Is battery voltage available at the clock connector
terminal 5?–Go to Step 9Go to Step 8

9E – 8IINSTRUMENTATION/DRIVER INFORMATION
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
8Repair the open circuit between terminal 5 of the
clock connector and fuse F17.
Is the repair complete?–System OK–
9Check continuity between terminal 3 of the clock
connector and ground.
Does the multimeter indicate the value specified?0 WGo to Step 10Go to Step 11
10Replace the clock.
Is the repair complete?–System OK–
11Repair the open ground circuit between terminal 3
the clock connector and ground G202.
Is the repair complete?–System OK–

INSTRUMENTATION/DRIVER INFORMATION 9E – 9
DAEWOO V–121 BL4
INSTRUMENT PANEL ILLUMINATION
Instrument Panel Illumination Lamps Inoperative
StepActionValue(s)YesNo
1Check fuse Ef28.
Is fuse Ef28 blown?–Go to Step 2Go to Step 3
21. Check for a short circuit and repair it, if neces-
sary.
2. Replace the blown fuse.
Is the repair complete?–System OK–
31. Turn the lamp switch on.
2. Use a voltmeter to check battery voltage at
fuse Ef28.
Does the battery voltage match the value specified?11–14 vGo to Step 5Go to Step 4
4Repair the open power supply circuit to fuse Ef28.
Is the repair complete?–System OK–
5Use an ohmmeter to check the resistance between
ground and the BLK wire of the dimmer control
switch connector.
Is the resistance equal to the specified value?0 WGo to Step 7Go to Step 6
6Repair the open ground circuit.
Is the repair complete?–System OK–
71. Turn the lamp switch on.
2. Use a voltmeter to check for battery voltage at
the DK GRN wire of the dimmer control switch
connector.
Does the battery voltage match the value specified?11–14 vGo to Step 9Go to Step 8
8Repair the open circuit between the DK GRN wire of
the dimmer control switch connector and fuse Ef28.
Is the repair complete?–System OK–
91. Disconnect the dimmer control switch.
2. Turn the lamp switch on.
3. Use a voltmeter to check for battery voltage at
the DK GRN wire of the dimmer control switch
connector.
Does the battery voltage match the value specified?11–14 vGo to Step 11Go to Step 10
10Repair the open circuit between the DK GRN wire of
the dimmer control switch connector and each
lamps.
Is the repair complete?–System OK–
11Replace the dimmer control switch.–System OK–

9E – 10IINSTRUMENTATION/DRIVER INFORMATION
DAEWOO V–121 BL4
SPEEDOMETER
Speedometer Inoperative, Other Gauges and Warning Lamps Are
OK
StepActionValue(s)YesNo
11. Connect a scan tool.
2. Check for engine control diagnostic trouble
codes (DTCs).
Is the vehicle speed sensor DTC set?–Go to
Section 1F, En-
gine ControlsGo to Step 2
21. Turn the ignition OFF.
2. Disconnect the engine control module (ECM)
connector.
3. Remove the instrument cluster.
4. Check continuity between ECM terminal K6
(B23 ; HV–240, 51 ; SIRIUS D4) and the in-
strument cluster connector terminal B5.
Does the ohmmeter indicate the specified value?0 WGo to Step 4Go to Step 3
3Repair the open circuit between the instrument clus-
ter connector terminal B5 and the ECM.
Is the repair complete?–System OK–
4Replace the speedometer.
Is the repair complete?–System OK–
FUEL GAUGE
Fuel Gauge Inoperative, Other Gauges and Warning Lamps are OK
StepActionValue(s)YesNo
11. Connect a scan tool.
2. Check for engine control diagnostic trouble
codes (DTCs).
Is the vehicle speed sensor DTC set?–Go to
Section 1F, En-
gine ControlsGo to Step 2
21. Turn the ignition OFF.
2. Disconnect engine control module (ECM) con-
nector.
3. Remove the instrument cluster.
4. Check continuity between ECM terminal K30
(B31 ; HV–240, 40 ; SIRIUS D4) and the in-
strument cluster terminal B3.
Does the ohmmeter indicate the specified value?0 WGo to Step 4Go to Step 3
3Repair the open circuit between the instrument clus-
ter connector terminal B3 and the ECM terminal K30
(B31; HV–240, 40 ; SIRIUS D4).
Is the repair complete?–System OK–
4Replace the fuel gauge.
Is the repair complete?–System OK–

INSTRUMENTATION/DRIVER INFORMATION 9E – 11
DAEWOO V–121 BL4
TEMPERATURE GAUGE
Temperature Gauge Inoperative, Other Gauges and Warning
Lamps are OK
StepActionValue(s)YesNo
1Allow the engine to cool to room temperature.
With the ignition ON, does the temperature gauge al-
ways read at the high end of the scale?–Go to Step 7Go to Step 2
2Disconnect ECM electrical connector.
Does the temperature gauge indicator drop to the
low end of the scale?–Go to
Section 1F, En-
gine ControlsGo to Step 3
3Check for a short to ground between the ECM and
the temperature gauge.
Is there a short to ground?–Go to Step 4Go to Step 5
4Repair the short to ground.
Is the repair complete?–System OK–
5Replace the temperature gauge.
Is the repair complete?–System OK–
61. Disconnect the ECM.
2. Turn the ignition ON.
3. Check the voltage at the ECM.
Does the the voltage equal the value specified?11–14 vGo to Step 9Go to Step 7
7Check for an open circuit between the ECM and the
temperature gauge.
Is there an open circuit?–Go to Step 8Go to Step 5
8Repair the open circuit between the ECM and the
temperature gauge.
Is the repair complete?–System OK–
91. Disconnect the ECM.
2. Connect a jumper wire between the ECM con-
nector and ground.
3. Turn the ignition ON.
Does the temperature gauge move to the high end
of the scale?–Go to
Section 1F, En-
gine ControlsGo to Step 5