LIGHTING SYSTEMS 9B–3
DAEWOO M-150 BL2
DIAGNOSTIC INFORMATION AND PROCEDURES
HEADLAMPS
ConditionProbable CauseCorrection
Low Beam Headlamps Are
Inoperative, High BeamFaulty headlamp combination
switch.Replace the headlamp
combination switch.
Headlamps Are OK.The open circuit or a short circuit
between the fuse Ef10/Ef11 and
the terminal 5 of the headlamp
combination switch.Repair or Replace the wiring
harness.
Fuse Ef10 or Ef11 is blown.Replace the fuse Ef10 or Ef11
The open circuit or a short circuit
between the fuse Ef10 or Ef11 and
the terminal 2 of the headlamp
connector.Repair or Replace the wiring
harness.
Headlamp bulb is blown.Replace the headlamp bulb.
The open grounds (G101, G102)
circuit.Repair or replace the open ground
circuit.
High Beam Headlamps Are
Inoperative, Low BeamFaulty headlamp combination
switch.Replace the headlamp
combination switch.
Headlamps Are OK.The open circuit or a short circuit
between the fuse Ef8/Ef9 and the
terminal 4 of the headlamp
combination switch.Repair or Replace the wiring
harness.
Fuse Ef8 or Ef9 is blown.Replace the fuse Ef10 or Ef11.
The open circuit or a short circuit
between the fuse Ef8 or Ef9 and
the terminal 1 of the headlamp
connector.Repair or Replace the wiring
harness.
Headlamp bulb is blown.Replace the headlamp bulb.
The open grounds (G101, G102)
circuit.Repair or Replace the open
ground circuit.
High Beam and Low Beam
Headlamps Are Inoperative On
Both Left and Right Sides.The open circuit or a short circuit
in the power supply circuit to the
fuse Ef18.Repair or Replace the wiring
harness.
Fuse Ef18 is blown.Replace the fuse Ef18 (20A).
The open circuit or a short circuit
between the fuse Ef18 and the
terminal 86, 30 of the headlamp
relay.Repair or Replace the wiring
harness.
Faulty headlamp relay.Replace the headlamp relay.
The open circuit or a short circuit
between the terminal 87 of the
headlamp relay and the terminal 6
of the headlamp combination
switch.Repair or Replace the wiring
harness.
Faulty headlamp combination
switch.Replace the headlamp
combination switch.
The open ground (G201) circuit.Repair or Replace the open
ground circuit.
9B–4 LIGHTING SYSTEMS
DAEWOO M-150 BL2
TURN SIGNAL LAMPS AND HAZARD LAMPS
ConditionProbable CauseCorrection
Turn Signal Lamps and Hazard
Lamps Do Not Work.The open circuit or a short circuit
between the power supply circuit
and the fuse Ef2.Repair or Replace the wiring
harness.
Fuse Ef2 is blown.Replace the fuse Ef2.
The open circuit or a short circuit
between the fuse Ef2 and the fuse
F12.Repair of Replace the wiring
harness.
Fuse F12 is blown.Replace the fuse F12.
The open circuit or a short circuit
between the fuse F12 and the
terminal 8 of the hazard lamp
switch connector.Repair or Replace the wiring
harness.
Faulty hazard lamp switch.Replace the hazard lamp switch.
The open circuit or a short circuit
between the terminal 7 of the
hazard lamp switch connector and
the terminal 49 of the turn signal
lamp relay.Repair or Replace the wiring
harness.
The open circuit or a short circuit
between the terminal 49a of the
turn signal lamp relay and the
terminal 9 of the hazard lamp
switch connector.Repair or Replace the wiring
harness.
Faulty turn signal lamp relay.Replace the turn signal lamp relay.
The open circuit or a short circuit
between the terminal 49a of the
turn signal lamp relay and the
terminal 2 of the turn signal lamp
switch connector.
Faulty turn signal lamp switch.Replace the turn signal lamp
switch.
The open circuit or a short circuit
between the terminal 1,3 of the
turn signal switch connector and
the terminal 2,5 of each turn signal
lamp connectors.Repair or Replace the wiring
harness.
Turn signal lamp bulb is blown.Replace the turn signal lamp bulb.
The open grounds (G101, G102,
G401, G402) circuits.Repair or Replace the open
ground circuit.
Hazard Lamps Do Not Operate,
Turn Signals Are OK.The open circuit or a short circuit
between the terminal 49a of the
turn signal lamp relay and the
terminal 9 of the hazard lamp
switch connector.Repair or Replace the open
circuit.
The open circuit or a short circuit
between the terminals 5,6 of the
hazard lamp switch connector and
the terminals 2,5 of the turn signal
lamp connectors.Repair or Replace the wiring
harness.
9B–6 LIGHTING SYSTEMS
DAEWOO M-150 BL2
REAR FOG LAMP
Diagnostic Aids: The rear fog lamp will not operate unless the headlamps are ON. If the headlamps are not operat-
ing, repair that problem before attempting to diagnose the rear fog lamp.
ConditionProbable CauseCorrection
Rear Fog Lamp
Does Not Work.The open circuit or a short circuit
between the terminal 87 of the
headlamp relay and terminal 15,30
of the rear fog lamp relay.Repair or Replace the wiring
harness.
Faulty rear fog lamp relay.Replace the rear fog lamp relay.
The open circuit or a short circuit
between the terminal 87 of the
rear fog lamp relay and terminal 6
of the rear fog lamp connector.Repair or Replace the wiring
harness.
The open circuit or a short circuit
between the terminal E of the rear
fog lamp relay and terminal 6 of
the rear fog lamp switch.Repair or Replace the wiring
harness.
Faulty rear fog lamp switch.Replace the rear fog lamp switch.
The open grounds (G201, G401)
circuits.Repair or Replace the open
ground circuit.
Rear fog lamp bulb is blown.Replace the rear fog lamp bulb.
WIPERS/WASHER SYSTEMS 9D–3
DAEWOO M-150 BL2
DIAGNOSTIC INFORMATION AND PROCEDURES
WINDSHIELD/REAR WINDOW WIPER AND WASHER SYSTEM
ConditionProbable CauseCorrection
Windshield Wipers Do Not
Work At Any SpeedThe open or a short in the power
supply circuit to the fuse F8.Repair or replace the open a short
in the power supply circuit to the
fuse F8.
Fuse F8 is blown.Replace the fuse F8.
Faulty wiper/washer switch.Replace the wiper/washer switch.
The circuit between the
wiper/washer switch connector
and the wiper relay is open or
short.Repair or Replace the wiring
harness.
The circuit between the fuse F8
and the wiper relay is open or
short.Repair or Replace the wiring
harness.
Faulty wiper relay.Replace the wiper relay.
The circuit between the wiper
relay and the ground G201 is the
open circuit or a short circuit.Repair or Replace the open circuit
or a short circuit between the
wiper relay and the ground G201.
The circuit between the
wiper/washer switch and the wiper
motor is the open circuit or a short
circuit.Repair or Replace the wiring
harness.
The circuit between the fuse F8
and the wiper motor is the open
circuit or a short circuit.Repair or Replace the wiring
harness.
The circuit between the wiper
relay and the wiper motor is the
open circuit or a short circuit.Repair or Replace the wiring
harness.
Faulty wiper motor.Replace the wiper motor.
The connection of the wiper
linkage and the wiper motor is
poor.Tighten completely the nut.
Tighten completely the ball.
Wiper linkage is out of order.Replace the wiper linkage.
Wipers Do Not Work On HighFaulty wiper/washer switch.Replace the wiper/washer switch.
Speed, Low Speed OKThe circuit between the
wiper/washer switch and the wiper
motor is the open circuit or a short
circuit.Repair or Replace the wiring
harness.
Faulty wiper motor.Replace the wiper motor.
Wipers Do Not Work On LowFaulty wiper/washer switch.Replace the wiper/washer switch.
Speed, High Speed OKThe circuit between the
wiper/washer switch and the wiper
motor is the open circuit or a short
circuit.Repair or Replace the wiring
harness.
Faulty wiper motor.Replace the wiper motor.
9D –4 WIPERS/WASHER SYSTEMS
DAEWOO M-150 BL2
WINDSHIELD/REAR WINDOW WIPER AND WASHER SYSTEM(Cont’d)
ConditionProbable CauseCorrection
Wipers Do Not On Intermittent,
Other Speed OKThe circuit between the fuse F8
and the wiper relay is the open
circuit or a short circuit.Repair or Replace the wiring
harness.
The circuit between the fuse F8
and the wiper motor is the open
circuit or a short circuit.Repair or Replace the wiring
harness.
Faulty wiper/washer switch.Replace the wiper/washer switch.
The circuit between the
wiper/washer switch and the wiper
relay is the open circuit or a short
circuit.Repair or Replace the wiring
harness.
Faulty wiper relay.Replace the wiper relay.
The circuit between the wiper
relay and the wiper motor is the
open circuit or a short circuit.Repair or Replace the wiring
harness.
Poor ground G201.Repair or Replace the wiring
harness.
Faulty wiper motor.Replace the wiper motor.
Windshield Washer Does Not
Work, Windshield Wipers OKThe open or a short in the power
supply circuit to the fuse F9.Repair or Replace the open or a
short in the power supply circuit to
the fuse F9.
Fuse F9 is blown.Replace the fuse.
The circuit between the fuse F9
and the wiper/washer switch is the
open circuit or a short circuit.Repair or Replace the wiring
harness.
Faulty wiper/washer switch.Replace the wiper/washer switch.
The circuit between the wiper/
washer switch and the wiper relay
is the open circuit or a short
circuit.Repair or Replace the wiring
harness.
Faulty wiper relay.Replace the wiper relay.
The circuit between the wiper
relay and ground G201 is the
open circuit or a short circuit.Repair or Replace the wiring
harness.
The circuit between the
wiper/washer switch and the
windshield washer pump is the
open circuit or a short circuit.Repair or Replace the wiring
harness.
Faulty windshield washer pump.Replace the windshield wash
pump.
Poor ground G201.Repair or Replace the wiring
harness.