Check
brake operation by applying the brakes during a test drive. If the
brakes do not work properly, check the brake booster. Replace the brake
booster as an assembly if it does not work properly or if there are
signs of leakage.
Piston cup and pressure cup inspection (B)
•
Check brake operation by applying the brakes. Look for damage
or signs of fluid leakage. Replace the master cylinder as an assembly
if the pedal does not work properly or if there is damage or signs of
fluid leakage.
•
Check for a difference in brake pedal stroke between quick
and slow brake applications. Replace the master cylinder if there is a
difference in pedal stroke.
Brake hoses (C)
Look for damage or signs of fluid leakage. Replace the brake hose with a new one if it is damaged or leaking.
Caliper piston seal and piston boots (D)
Check brake operation by applying the brakes. Look
for damage or signs of fluid leakage. If the pedal does not work
properly, the brakes drag, or there is damage or signs of fluid leakage,
disassemble and inspect the brake caliper. Replace the boots and seals
with new ones whenever the brake caliper is disassembled.
Brake System Bleeding
•
Do not reuse the drained fluid.
•
Always use genuine DOT3/DOT4 brake Fluid.
Using a non-genuine DOT3/DOT4 brake fluid can cause corrosion and decrease the life of the system.
•
Make sure no dirt or other foreign matter is allowed to contaminate the brake fluid.
•
Do not spill brake fluid on the vehicle, it may damage the
paint; if brake fluid does contact the paint, wash it off immediately
with water.
•
The reservoir on the master cylinder must be at the MAX
(upper) level mark at the start of bleeding procedure and checked after
bleeding each brake caliper. Add fluid as required.
1.
Make sure the brake fluid in the reservoir is at the MAX(upper) level line.
2.
Have someone slowly pump the brake pedal several times, and then apply pressure.
3.
Loosen the right-rear brake bleed screw (A) to allow air to escape from the system. Then tighten the bleed screw securely.
Front
Rear
4.
Repeat the procedure for wheel in the sequence shown below until air bubbles no longer appear in the fluid.
5.
Refill the master cylinder reservoir to MAX(upper) level line.
Bleeding of Brake System
This procedure should be followed to ensure adequate bleeding
of air and filling of the ESC unit, brake lines and master cylinder
with brake fluid.
1.
Remove the reservoir cap and fill the brake reservoir with brake fluid.
If there is any brake fluid on any painted surface, wash it off immediately.
When pressure bleeding, do not depress the brake pedal.
Recommended fluid........ DOT3 or DOT4
2.
Connect a clear plastic tube to the wheel cylinder bleeder
plug and insert the other end of the tube into a half filled clear
plastic bottle.
3.
Connect the GDS to the data link connector located underneath the dash panel.
4.
Select and operate according to the instructions on the GDS screen.
You must obey the maximum operating time of the ABS motor with the GDS to prevent the motor pump from burning.
(1)
Select vehicle name.
(2)
Select Anti-Lock Brake system.
(3)
Select HCU air bleeding mode.
(4)
Press "OK" to operate motor pump and solenoid valve.
(5)
Wait 60 sec. before operating the air bleeding.
(If not, you may damage the motor.)
(6)
Perform the air bleeding.
5.
Pump the brake pedal several times, and then loosen the
bleeder screw until fluid starts to run out without bubbles. Then close
the bleeder screw (A).
Front
Rear
6.
Repeat step 5 until there are no more bubbles in the fluid for each wheel.
Inspection
Check it by the procedure below to see if the function of the ECM is normal.
1.
Turn the ignition key to the "ON" position.
2.
Cover the front sensor to stop functioning.
3.
Shine a light at the rear sensor.
4.
The ECM should be darkened as soon as the rear sensor detects ...