LIGHTING SYSTEMS 9B–3
DAEWOO M-150 BL2
DIAGNOSTIC INFORMATION AND PROCEDURES
HEADLAMPS
Condition Probable Cause Correction
Low Beam Headlamps Are
Inoperative, High Beam
D Faulty headlamp combination
switch.
D Replace the headlamp
combination switch.
Headlamps Are OK.
D The open circuit or a short circuit
between the fuse Ef10/Ef11 and
the terminal 5 of the headlamp
combination switch.
D Repair or Replace the wiring
harness.
D Fuse Ef10 or Ef11 is blown. D Replace the fuse Ef10 or Ef11
D The open circuit or a short circuit
between the fuse Ef10 or Ef11 and
the terminal 2 of the headlamp
connector.
D Repair or Replace the wiring
harness.
D Headlamp bulb is blown. D Replace the headlamp bulb.
D The open grounds (G101, G102)
circuit.
D Repair or replace the open ground
circuit.
High Beam Headlamps Are
Inoperative, Low Beam
D Faulty headlamp combination
switch.
D Replace the headlamp
combination switch.
Headlamps Are OK.
D The open circuit or a short circuit
between the fuse Ef8/Ef9 and the
terminal 4 of the headlamp
combination switch.
D Repair or Replace the wiring
harness.
D Fuse Ef8 or Ef9 is blown. D Replace the fuse Ef10 or Ef11.
D The open circuit or a short circuit
between the fuse Ef8 or Ef9 and
the terminal 1 of the headlamp
connector.
D Repair or Replace the wiring
harness.
D Headlamp bulb is blown. D Replace the headlamp bulb.
D The open grounds (G101, G102)
circuit.
D Repair or Replace the open
ground circuit.
High Beam and Low Beam
Headlamps Are Inoperative On
Both Left and Right Sides.
D The open circuit or a short circuit
in the power supply circuit to the
fuse Ef18.
D Repair or Replace the wiring
harness.
D Fuse Ef18 is blown. D Replace the fuse Ef18 (20A).
D The open circuit or a short circuit
between the fuse Ef18 and the
terminal 86, 30 of the headlamp
relay.
D Repair or Replace the wiring
harness.
D Faulty headlamp relay. D Replace the headlamp relay.
D The open circuit or a short circuit
between the terminal 87 of the
headlamp relay and the terminal 6
of the headlamp combination
switch.
D Repair or Replace the wiring
harness.
D Faulty headlamp combination
switch.
D Replace the headlamp
combination switch.
D The open ground (G201) circuit. D Repair or Replace the open
ground circuit.