2006 ACURA CSX brake

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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 andReplacement, 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 PedalPosition Switch Adjustment,
page 19-6
Replacement, page 19-36
Cover Replacement, page 19-45
08/08/21 15:00:49 61SNR030_190_0003
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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.
08/08/21 15:00:49 61SNR030_190_0004
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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
themastercylinder(seepage19-24).
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).
I s t her e br ak e d r ag at any of t he w heel s?
I s t her e br ak e d r ag at any of t he w heel s?I s t her e br ak e d r ag at any of t he w heel s? I s t her e br ak e d r ag at any of t he w heel s?
I s t her e br ak e d r ag at any of t he w heel s?
08/08/21 15:00:49 61SNR030_190_0005
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Pedal Height
Standard pedal height (with carpet removed): M/T: 153 mm (6.02 in.)
A/T: 158 mm (6.22 in.) Brake Pedal Position Switch Clearance
19-6Conventional Brake Components
Brake Pedal and Brake Pedal Position Switch Adjustment
A
B
B C
90 ° A
15 N·m
(1.5 kgf·m,
11 lbf·ft)B
Lower
the pedal Raise
the pedal
A
B
0.7 mm (0.028 in.)
1. Turn the brake pedal position switch (A) counterclockwise, and pull it back until it is no
longer touching the brake pedal.
2. Pull back the carpet, and find the cutout in the insulation. Measure the pedal height (B) at the
middle of the left side center of the pedal pad (C) to
the floor without the insulation. 3. Loosen the pushrod locknut (A), and screw the
pushrod (B) in or out with pliers until the standard
pedal height from the floor is reached. After
adjustment, tighten the locknut firmly. Do not
adjust the pedal height with the pushrod pressed.
4. Lift up on the brake pedal by hand. Push in the brake pedal position switch until its plunger is fully
pressed (threaded end (A) touching the pad (B) on
the pedal arm). Turn the switch 45 ° clockwise to
lock it. The gap between the brake pedal position
switch and the pad is automatically adjusted to
0.7mm(0.028in.)bylockingtheswitch.Makesure
the brake lights go off when the pedal is released.
5. Check the brake pedal free play.
08/08/21 15:00:50 61SNR030_190_0006
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Pedal Free Play
Inspection
Free play: 1 5 mm (0.04 0.20 in.) Lever locked clicks: 8 to 10
19-719-7
Parking Brake Inspection and
Adjustment
B
A C
Pulled back with
196 N (20 kgf, 44 lbf)
A
1. With the ignition switch in LOCK (0), inspect theplay (A) at the pedal pad (B) by pushing the pedal
by hand. If the brake pedal free play is out of
specification, adjust the brake pedal position switch
(C). If the brake pedal free play is insufficient, it
may result in brake drag. 1. Pull the parking brake lever (A) with 196 N (20 kgf,
44 lbf) of force to fully apply the parking brake. The
parking brake lever should be locked within the
specified number of clicks.
2. If the number of lever clicks is not as specified, adjust the parking brake.
(cont’d)
08/08/21 15:00:50 61SNR030_190_0007
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Pedal Free Play
Inspection
Free play: 1 5 mm (0.04 0.20 in.) Lever locked clicks: 8 to 10
19-719-7
Parking Brake Inspection and
Adjustment
B
A C
Pulled back with
196 N (20 kgf, 44 lbf)
A
1. With the ignition switch in LOCK (0), inspect theplay (A) at the pedal pad (B) by pushing the pedal
by hand. If the brake pedal free play is out of
specification, adjust the brake pedal position switch
(C). If the brake pedal free play is insufficient, it
may result in brake drag. 1. Pull the parking brake lever (A) with 196 N (20 kgf,
44 lbf) of force to fully apply the parking brake. The
parking brake lever should be locked within the
specified number of clicks.
2. If the number of lever clicks is not as specified, adjust the parking brake.
(cont’d)
08/08/21 15:00:50 61SNR030_190_0007
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Adjustment
19-8Conventional Brake Components
Parking Brake Inspection and Adjustment (cont’d)
A
A
B
1. Remove the center console panel (see page 20-92).
2. Release the parking brake lever fully.
3. Loosen the parking brake adjusting nut (A).
4. Raise the rear of the vehicle, and support it with safety stands in the proper locations (see page
1-11).
5. Remove the rear wheels. 6. Make sure the lever (A) on the rear brake caliper
contacts the stop pin (B).
NOTE: The lever will only contact the stop pin when
the parking brake adjusting nut is loosened.
7. Clean the mating surfaces between the brake disc and the inside of the wheel, then install the rear
wheels.
8. Pull the parking brake lever 1 click.
9. Tighten the parking brake adjusting nut until the parking brakes drag slightly when the rear wheels
are turned.
10. Release the parking brake lever fully, and check that the parking brakes do not drag when the rear
wheels are turned. Readjust if necessary.
11. Make sure the parking brake lever is within the specified number of clicks (8 to 10 clicks).
12. Install the center console panel (see page 20-92).
08/08/21 15:00:51 61SNR030_190_0008
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Front
Rear
19-9
Brake System Bleeding
A
B
Front Right
Front Left Rear Right
Rear Left
BLEEDING SEQUENCE: B
9 N·m (0.9 kgf·m, 7 lbf·ft)
A
B
9N·m
(0.9 kgf·m,
7lbf·ft) A
NOTE:
 Do not reuse the drained fluid. Use only clean Honda DOT 3 Brake Fluid from an unopened container.
Using a non-Honda brake fluid can cause corrosion
and shorten 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 connected the master cylinder must be at the MAX (upper) l evel mark at the start of the
bleeding procedure, and checked after bleeding each
wheel location. Add fluid as required.
1. Make sure the brake fluid level in the reservoir (A) is at the MAX (upper) l evel line (B).
2. Have someone slowly pump the brake pedal several times, then apply steady pressure.
3. Start the bleeding at the driver’s side of the front brake system.
NOTE: Bleed the calipers in the sequence shown. 4. Attach a length of clear drain tube (A) to the bleed
screw (B), then loosen the bleed screw to allow air
to escape from the system. Then tighten the bleed
screw securely.
5. Refill the master cylinder reservoir to the MAX (upper) l evel line.
6. Repeat the procedure for each brake circuit until there are no air bubbles in the fluid.
08/08/21 15:00:52 61SNR030_190_0009
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