Warning Lamp Operation; Brake System Fault - Daewoo MATIZ Service Manual

WARNING LAMP OPERATION

This brake system uses a BRAKE warning lamp located
in the instrument panel cluster. When the ignition switch
is in the III position, the BRAKE warning lamp should
glow and then go OFF when the ignition switch returns
to the II position.
Condition
Brake Warning Lamp ON
Stoplamp ON
Poor Braking
Dragging Brake
Pedal Over Stroke
DAEWOO M-150 BL2

BRAKE SYSTEM FAULT

Probable cause
D Brake fluid leaks.
D Parking brake switch shorted to
ground.
D Faulty the fluid level sensor.
D Faulty the stoplamp switch.
D Push rod length is short.
D Stoplamp switch circuit shorted to
battery.
D Brake fluid lacks or leaks.
D Brake fluid contamination.
D Air in the brake system.
D Damaged brake lines.
D Damaged vacuum hose or faulty
check valve.
D No free play at the brake pedal.
D Weakened the brake pedal return
spring.
D Faulty master cylinder.
D Air in the brake system.
D Brake fluid lacks or leaks.
D Poor adjustment of the brake pedal
free play.
HYDRAULIC BRAKES 4A – 5
The following conditions will activate the BRAKE lamp:
D Parking brake applied. The light should be on when-
ever the parking brake is applied and the ignition
switch is II.
D Low fluid level. A low fluid level in the master cylinder
will turn the BRAKE lamp ON.
D Repair the leaks or add th fluid.
D Repair the short ground.
D Replace the sensor.
D Replace the stoplamp switch.
D Adjust the push rod length of the
power booster.
D Repair or Replace the wiring harness.
D Repair the leaks or add the fluid.
D Replace the fluid.
D Bleed the brake system.
D Replace the brake lines.
D Replace the vacuum hose or check
value.
D Adjust the free play.
D Replace the return spring.
D Replace the master cylinder.
D Bleed the brake system.
D Repair the leaks or add the fluid.
D Adjust the push rod length of the
power booster.
Correction