Acura CSX. Manual — part 374
01
01
SNR9A000000000J1901PAAT00
Ref. No.
Tool Number
Description
Qty
19-2
Conventional Brake Components
Special Tools
07AAE-SEPA101
Brake Caliper Piston Compressor
1
07AAG-SVBA100
Guide Pin Tool
1
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*01
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19-3
Component Location Index
BRAKE SYSTEM INDICATOR
BRAKE HOSE and LINE
REAR BRAKE
FRONT BRAKE
PARKING BRAKE
BRAKE BOOSTER
MASTER CYLINDER
BRAKE PEDAL
Circuit Diagram, page 19-10
Parking Brake Switch Test, page 19-11
Brake Fluid Level Switch Test, page 19-11
Inspection, page 19-37
Brake Hose Replacement, page 19-38
Pad Inspection and
Replacement, page 19-29
Disc Inspection, page 19-32
Disc Replacement, page 19-34
Caliper Overhaul, page 19-35
Pad Inspection and
Replacement,
page 19-12
Disc Inspection, page 19-19
Disc Replacement, page 19-21
Caliper Overhaul, page 19-22
Inspection and Adjustment, page 19-7
Cable Replacement, page 19-40
Lever Grip and Cover Replacement,
page 19-41
Test, page 19-26
Replacement, page 19-27
Brake System Bleeding,
page 19-9
Replacement,
page 19-24
Inspection,
page 19-25
Brake Pedal and Brake Pedal
Position Switch Adjustment,
page 19-6
Replacement, page 19-36
Cover Replacement, page 19-45
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Component Inspections:
Component
Procedure
Also check for
Brake pedal sinks/fades when braking
Brake System Test
19-4
Conventional Brake Components
Brake System Inspection and Test
Inspect the brake system components listed. Repair or replace any parts that are leaking or damaged.
•
•
•
•
•
•
•
•
•
•
Master Cylinder
Look for damage or signs of fluid leakage at:
Reservoir tank, subreservoir or master
cylinder body.
Lines, reservoir tank hose and grommets,
and their joints.
Between master cylinder and booster.
Bulging seal at reservoir cap. This is a
sign of fluid contamination.
Brake Hoses
Look for damage or signs of fluid leakage at:
Line joints and banjo bolt connections.
Hoses and lines, also inspect for twisting or
damage.
Bulging, twisted, or bent lines.
Caliper
Look for damage or signs of fluid leakage at:
Piston seal.
Banjo bolt connections.
Bleed screw.
Seized or sticking caliper pins.
ABS or VSA
Modulator-control
Unit
Look for damage or signs of fluid leakage at:
Line joints.
Modulator-control unit.
1. Set the parking brake, and start the engine, then turn off the A/C. Allow the engine to warm up to normal operating
temperature (radiator fan comes on twice).
2. Attach a 50 mm (2 in.) piece of masking tape along the bottom of the steering wheel, and draw a horizontal
reference mark across it.
3. With the transmission in neutral (M/T) or P or N (A/T), press and hold the brake pedal lightly (about the same
pressure needed to keep an A/T-equipped vehicle from creeping), then release the parking brake.
4. While still holding the brake pedal, hook the end of the tape measure behind the brake pedal, then pull the tape up
to the steering wheel. Note the measurement between the brake pedal and the reference mark on the steering
wheel.
5. Apply steady pressure to the brake pedal for 3 minutes.
6. Watch the tape measure.
• If the measurement increases 10 mm (0.39 in.) or less, the master cylinder is OK.
• If the measurement increases more than 10 mm (0.39 in.), replace the master cylinder.
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−
−
−
−
−
−
−
−
−
−
Rapid brake pad wear, vehicle vibration
(after a long drive), or high, hard brake pedal
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
19-5
Symptom Troubleshooting
NOTE: Make sure that the caliper pins are installed
correctly.
Upper caliper pin B and lower caliper pin A are different.
If the pins are installed in the wrong location, it will
cause vibration, uneven or rapid pad wear, and
possibly uneven tire wear. For proper caliper pin
location: Except Type S model (see page 19-22), Type S
model (see page 19-23).
1. Drive the vehicle until the brakes drag or until the
pedal is high and hard. This can take 20 or more
brake pedal applications during an extended test-
drive.
2. With the engine running, raise the vehicle on a lift,
and spin all four wheels by hand.
Go to step 3.
Look for other causes of pad wear, high pedal,
or vehicle vibration.
3. Turn the ignition switch to LOCK (0), press the
brake pedal several times to deplete the vacuum in
the brake booster, and then spin the wheels again
to check for brake drag.
Go to step 4.
Replace the brake booster (see page 19-27).
4. Without removing the brake lines, unbolt and
separate the master cylinder from the brake
booster, then spin the wheels to check for brake
drag.
Go to step 5.
Check the brake pedal position switch
adjustment, and pedal free play (see page 19-6).
5. Loosen the hydraulic lines at the master cylinder,
then spin the wheels to check for brake drag.
Go to step 6.
Check the master cylinder reservoir for
contamination in the brake fluid. If you find
contamination, flush the entire brake system of all
contaminated fluid. If the brake fluid is OK, replace
the master cylinder (see page 19-24).
6. Loosen the bleed screws at each caliper, then spin
the wheels to check for brake drag.
Check the master cylinder reservoir for
contamination in the brake fluid. If you find
contamination, flush the entire brake system of all
contaminated fluid. If the brake fluid is OK,
disassemble and repair the caliper, on the wheel(s)
with brake drag.
Look for and replace any damaged brake lines.
If all brake lines are OK, replace the ABS or VSA
modulator-control unit: ABS (see page 19-90), VSA
(see page 19-171).
Is ther e br ake dr ag at any of the wheels?
Is ther e br ake dr ag at any of the wheels?
Is ther e br ake dr ag at any of the wheels?
Is ther e br ake dr ag at any of the wheels?
Is ther e br ake dr ag at any of the wheels?
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