2006 ACURA CSX brakes

(#'
)
µ
µ
µ
µ
µ
µ µ
µ
µ
µ
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
ProCarManuals.com
DYNOMITE -2009-


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
ProCarManuals.com
DYNOMITE -2009-



µµ
Inspection - Type S Model
Brake pad thickness:
Standard: 9.0 9.7 mm (0.35 0.38 in.)
Service limit: 1.6 mm (0.06 in.)
Inner pad
Outer pad
19-15
A
10x1.0mm
50 N·m
(5.1 kgf·m,
37 lbf·ft)
B
A B
A
C
16. Pivot the caliper down into position. Install the flange bolt (A), and tighten it to the specified torque
while holding the caliper pin (B) with a wrench
being careful not to damage the pin boot.
17. Clean the mating surfaces between the brake disc and the inside of the wheel, then install the front
wheels.
18. Press the brake pedal several times to make sure the brakes work.
NOTE: Engagement may require a greater pedal
stroke immediately after the brake pads have been
replaced as a set. Several applications of the brake
pedal will restore the normal pedal stroke.
19. Add brake fluid as needed.
20. After installation, check for leaks at hose and line joints or connections, and retighten if necessary.
Test-drive the vehicle, then recheck for leaks
(see page 19-37). 1. Raise the front of the vehicle, and support it with
safety stands in the proper locations (see page
1-11).
2. Remove the front wheels.
3. Check the thickness (A) of the inner pad (B) and the outer pad (C). Do not include the thickness of the
backing plate.
4. If any part of the brake pad thickness is less than the service limit, replace the front brake pads as a
set.
5. Clean the mating surfaces between the brake disc and the inside of the wheel, then install the front
wheels.
(cont’d)
08/08/21 15:00:55 61SNR030_190_0015
ProCarManuals.com
DYNOMITE -2009-


19-18Conventional Brake Components
Front Brake Pad Inspection and Replacement (cont’d)
A
8x1.0mm
33 N·m
(3.4 kgf·m,
25 lbf·ft)
B
16. Pivot the caliper down into position. Install theflange bolt (A), and tighten it to the specified torque
while holding the caliper pin (B), with a wrench
being careful not to damage the pin boot. 17. Clean the mating surfaces between the brake disc
and the inside of the wheel, then install the front
wheels.
18. Press the brake pedal several times to make sure the brakes work.
NOTE: Engagement may require a greater pedal
stroke immediately after the brake pads have been
replaced as a set. Several applications of the brake
pedal will restore the normal pedal stroke.
19. Add brake fluid as needed.
20. After installation, check for leaks at hose and line joints or connections, and retighten if necessary.
Test-drive the vehicle, then recheck for leaks
(see page 19-37).
08/08/21 15:00:56 61SNR030_190_0018
ProCarManuals.com
DYNOMITE -2009-


19-31
E
8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft)D
8x1.0mm
23 N·m
(2.3 kgf·m,
17 lbf·ft)
A B
C
14. Rotate the caliper piston (A) clockwise into the
cylinder, then align the cutout (B) in the piston with
the tab (C) on the inner pad by turning the piston
back. Lubricate the boot with rubber grease to
avoid twisting the piston boot. If the piston boot is
twisted, back it out so it is positioned properly.
NOTE: Be careful when moving the piston back in
the caliper; brake fluid might overflow from the
master cylinder’s reservoir. If brake fluid gets on
any painted surface, wash it off immediately with
water.
15. Install the caliper. Install the flange bolts (D), and tighten it to the specified torque while holding the
respective caliper pin with a wrench being careful
not to damage the pin boots.
16. Install the brake hose mounting bolt (E).
17. Clean the mating surfaces between the brake disc and the inside of the wheel, then install the rear
wheels. 18. Press the brake pedal several times to make sure
the brakes work.
NOTE: Engagement may require a greater pedal
stroke immediately after the brake pads have been
replaced as a set. Several applications of the brake
pedal will restore the normal pedal stroke.
19. Add brake fluid as needed.
20. After installation, check for leaks at hose and line joints or connections, and retighten if necessary.
Test-drive the vehicle, then recheck for leaks
(see page 19-37).
08/08/21 15:02:05 61SNR030_190_0031
ProCarManuals.com
DYNOMITE -2009-

(#'
/)
Brakes
....................................
Conventional Brake Components . 19-1
ABS (Anti-lock Brake System)
Components (’06-07 Models)
...................... ......................
VSA (Vehicle Stability Assist) System
Components (’07-09 Models) . 19-95
........................................
......................
....................................... ..............................
.....................................................
............................................................ ..........................................................................................
........................................ ...........................
........................................
......................
....................................... ..............................
.....................................................
............................................................ ..........................................................................................
........................................ ...........................
Component Location Index
. 19-48
General Troubleshooting Information . 19-49
DTC Troubleshooting Index . 19-52
Symptom Troubleshooting Index . 19-55
System Description . 19-56
Circuit Diagram . 19-62
DTC Troubleshooting . 19-65
Symptom Troubleshooting . 19-88
ABS Modulator-Control Unit Removal and Installation . 19-90
Wheel Speed Sensor Replacement . 19-92
08/08/21 15:02:12 61SNR030_190_0047
ProCarManuals.com
DYNOMITE -2009-


(#'
)

System IndicatorABS Indicator
Brake System Indicator
19-49
General Troubleshooting Information
AB
This system has two indicators: ABS indicator (A)
 Brake system indicator (B)
When the system is OK, each indicator comes on for
about 2 seconds after turning the ignition switch to
ON (II), then goes off.
When the system detects a problem, a DTC is set and,
depending upon the failure, the ABS modulator-control
unit determines which indicator(s) are turned on. If the
problem goes away (system returns to normal), the
indicator(s) are controlled in the following way
depending upon the DTC that is set:  The indicator(s) come on and stay on when the ignition switch is ON (II).
 The indicator(s) automatically go off.
 The indicator(s) go off after the vehicle is driven. The ABS indicator comes on when the ABS function is
lost. The brakes still work like a conventional system.
The brake system indicator comes on when the EBD
function is lost, the parking brake is applied, and/or the
brake fluid level is low.
NOTE: If two or more wheel speed sensors fail, the
brake system indicator comes on.
(cont’d)
08/08/21 15:02:15 61SNR030_190_0049
ProCarManuals.com
DYNOMITE -2009-


System Outline
19-58ABS Components
System Description (cont’d)
ECM/PCM
WHEEL SPEED SENSORS
Control mode signal
Indicators drive signal  Brake pedal position switch signal
 Service check signal
Wheel rotation pulse signal
CONTROL UNIT
MODULATOR UNIT ABS MODULATOR-
CONTROL UNIT
 Solenoid control
 Motor control
Communication via F-CAN
PARKING
BRAKE
SWITCH
BRAKE
FLUID
LEVEL
SWITCH BRAKE
PEDAL
POSITION
SWITCH
GAUGE CONTROL MODULE (TACH)
This system is composed of the ABS modulator-control unit, the wheel speed sensors, and the system indicators in
the gauge control module (tach). The ABS modulator-control unit controls the anti-lock brake and the brakes
distribution function.
08/08/21 15:02:17 61SNR030_190_0058
ProCarManuals.com
DYNOMITE -2009-