2004-08 BRAKES
Conventional Brake Components - TSX
Component Location Index
Fig. 1: Identifying Conventional Brake Components Location
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Brake System Inspection and Test
Inspect the brake system components listed. Repair or replace any parts that are leaking or damaged.
Component Inspections:
COMPONENT INSPECTIONS CHART
Component |
Procedure |
Also check for |
Master Cylinder |
Look for damage or signs of fluid leakage at:
- Reservoir or reservoir grommets.
- Line 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. |
VSA Modulator-control Unit |
Look for damage or signs of fluid leakage at:
- Line joints.
- Modulator-control unit.
|
|
Brake System Test
Brake pedal sinks/fades when braking
- Set the parking brake, and start the engine, then turn off the A/C switch. Allow the engine to warm up to normal operating temperature (radiator fan comes on twice).
- 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.
- With the transmission M/T in the neutral position, A/T in the P or N position, 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.
- 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.
- Apply steady pressure to the brake pedal for 3 minutes.
- Watch the tape measure.
- If the measurement increases 10 mm (3/8 in.) or less, the master cylinder is OK.
- If the measurement increases more than 10 mm (3/8 in.), replace the master cylinder.
Symptom Troubleshooting
Rapid brake pad wear, vehicle vibration (after a long drive), or high, hard brake pedal
NOTE: |
Make sure that the caliper pins are installed correctly. |
The 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 brake pad wear, and possibly uneven tire wear. For proper caliper pin location (see FRONT BRAKE CALIPER OVERHAUL
).
- 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.
- With the engine running, raise the vehicle on a lift, and spin all four wheels by hand.
Is there brake drag at any of the wheels?
YES
- Go to step 3.
NO
- Look for other causes of the pad wear, high pedal, or vehicle vibration.
- Turn the engine off, 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.
Is there brake drag at any of the wheels?
YES
- Go to step 4.
NO
- Replace the brake booster (see BRAKE BOOSTER REPLACEMENT
).
- Without removing the brake lines, unbolt and separate the master cylinder from the booster, then spin the wheels to check for brake drag.
Is there brake drag at any of the wheels?
YES
- Go to step 5.
NO
- Check the brake pedal position switch adjustment and pedal free play (see PEDAL FREE PLAY
).
- Loosen the hydraulic lines at the master cylinder, then spin the wheels to check for brake drag.
Is there brake drag at any of the wheels?
YES
- Go to step 6.
NO
- 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 MASTER CYLINDER REPLACEMENT
).
- Loosen the bleed screws at each caliper, then spin the wheels to check for brake drag.
Is there brake drag at any of the wheels?
YES
- 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.
NO
- Look for and replace any damaged brake lines. If all brake lines are OK, replace the VSA modulator-control unit (see
VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION
).
Brake Pedal and Brake Pedal Position Switch Adjustment
Pedal Height
- Turn the brake pedal position switch (A) counterclockwise, and pull it back until it is no longer touching the brake pedal.
Fig. 2: Identifying Pedal Height
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Pull back the carpet and find the cutout in the insulator. Lift up the insulator cutout and measure the pedal height (B) at the center of the pedal pad (C) to the floor.
Standard pedal height (with carpet removed):
M/T model: 144 mm (5 11/16 in.)
A/T model: 148 mm (5 13/16 in.)
- 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.
Fig. 3: Loosening Pushrod Locknut w/Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- 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). Then, turn the switch 45° clockwise to lock it. The gap between the brake pedal position switch and the pad is automatically adjusted to 0.7 mm (0.028 in.) by locking the switch. Make sure the brake lights go off when the pedal is released.
Fig. 4: Identifying Gap Between Brake Pedal Position Switch And Pad
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Check the brake pedal free play.
Pedal Free Play
- With the engine off, inspect the play (A) on the brake pedal pad (B) by pushing the brake 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.
Free play: 1-5 mm (1/16-3/16 in.)
Fig. 5: Checking Brake Pedal Free Play
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Parking Brake Inspection and Adjustment
Check
- 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 (B).
Lever locked clicks: 6 to 9
Pulled up with 196 N.m (20 kgf.m, 44 lbf.ft)
Fig. 6: Identifying Parking Brake Lever With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Adjust the parking brake if the lever clicks are not within the specification.
Adjustment
- Release the parking brake lever fully.
- Remove the center console (see
CENTER CONSOLE REMOVAL/INSTALLATION
).
- Loosen the parking brake adjusting nut (A), start the engine, and press the brake pedal several times to set the self-adjusting brake before adjusting the parking brake.
Fig. 7: Identifying Parking Brake Adjusting Nut
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Raise the rear of the vehicle, and support it with safety stands in the proper locations (see
LIFT AND SUPPORT POINTS
).
- Remove the rear wheels.
- Make sure the parking brake arm (A) on the rear brake caliper contacts the brake caliper pin (B).
NOTE: |
The parking brake arm will only contact the brake caliper pin when the parking brake adjusting nut is loosened. |
Fig. 8: Identifying Parking Brake Arm On Rear Brake Caliper
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Pull the parking brake lever 1 click.
Fig. 9: Identifying Parking Brake Lever
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Clean the mating surfaces of the brake disc and the inside of the wheel, then install the rear wheels.
- Tighten the adjusting nut until the parking brakes drag slightly when the rear wheels are turned.
- Release the parking brake lever fully, and check that the parking brakes do not drag when the rear wheels are turned. Readjust if necessary.
- Make sure the parking brakes are fully applied when the parking brake lever is pulled all the way.
- Install the center console (see
CENTER CONSOLE REMOVAL/INSTALLATION
).
Brake System Bleeding
NOTE: |
- Do not reuse the drained fluid. Use only clean Acura DOT 3 Brake Fluid from an unopened container. Using a non-Acura brake fluid can cause corrosion and shorten the life of the system.
- Do not mix different brands of brake fluid; they may not be compatible.
- 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 to the master cylinder must be at the MAX (upper) level mark at the start of the bleeding procedure and checked after bleeding each wheel. Add fluid as required.
|
- Make sure the brake fluid level in the reservoir is at the MAX (upper) level line (A).
Fig. 10: Identifying Brake Fluid Level In Reservoir
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Attach a length of clear drain tube to the bleed screw.
- Have someone slowly pump the brake pedal several times, then apply steady pressure.
- Starting at the left-front, loosen the brake bleed screw to allow air to escape from the system. Then tighten the bleed screw securely.
- Repeat the procedure for each wheel in the sequence shown following until air bubbles no longer appear in the fluid.
BLEEDING SEQUENCE:
Fig. 11: Identifying Bleeding Sequence
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Front
Fig. 12: Identifying Bleed Screw With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Rear
Fig. 13: Identifying Bleed Screw With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Refill the master cylinder reservoir to the MAX (upper) level line.
Brake System Indicator Circuit Diagram
Fig. 14: Brake System Indicator Circuit Diagram
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Parking Brake Switch Test
- Remove the center console (see
CENTER CONSOLE REMOVAL/INSTALLATION
).
- Disconnect the parking brake switch connector (A) from the parking brake switch (B).
Fig. 15: Identifying Parking Brake Switch Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Check for continuity between the switch terminal (C) and body ground.
- With the parking brake lever pulled, there should be continuity.
- With the parking brake lever released, there should be no continuity.
NOTE: |
If the parking brake switch and the fluid level switch are OK, but the brake system indicator does not function, do the gauge control module test (see
SELF-DIAGNOSTIC FUNCTION
). |
- Reinstall the center console (see
CENTER CONSOLE REMOVAL/INSTALLATION
).
Brake Fluid Level Switch Test
Check for continuity between the terminals (1) and (2) with the float in the down position and in the up position.
Front Brake Pad Inspection and Replacement
CAUTION: |
Frequent inhalation of brake pad dust, regardless of material composition, could be hazardous to your health.
- Avoid breathing dust particles.
- Never use an air hose or brush to clean brake assemblies. Use an OSHA-approved vacuum cleaner.
|
Inspection
- Raise the front of the vehicle, and support it with safety stands in the proper locations (see
LIFT AND SUPPORT POINTS
).
- Remove the front wheels.
- Remove the brake pads.
- Check the thickness (A) of the brake pads (B). Do not include the thickness of the brake pad backing plate (C).
Brake pad thickness:
Standard: 10.5-11.5 mm (0.41-0.45 in.)
Service limit: 1.6 mm (0.06 in.)
Fig. 17: Identifying Brake Pad Thickness
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- If the brake pad thickness is less than the service limit, replace all of the front brake pads as a set.
- Clean the mating surfaces of the brake disc and the inside of the wheel, then install the front wheels.
Replacement
- Remove some brake fluid from the master cylinder.
- Raise the front of the vehicle, and support it with safety stands in the proper locations (see
LIFT AND SUPPORT POINTS
).
- Remove the front wheels.
- Remove the brake hose bracket mounting bolts (A).
Fig. 18: Identifying Brake Hose Bracket Mounting Bolts
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the flange bolt (B) while holding the caliper pin (C) with a wrench being careful not to damage the pin boot, and pivot the caliper (D) up out of the way. Check the hose and pin boots for damage and deterioration.
- Remove the brake pads (A) and the pad shims (B).
Fig. 19: Identifying Brake Pads And Pad Shims
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Check the hose and pin boots for damage and deterioration.
- Remove the pad retainers (A), and check the caliper pin for free movement.
Fig. 20: Identifying Pad Retainers
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Clean the caliper bracket (B) thoroughly; remove any rust, and check for grooves and cracks.
- Inspect the brake disc, and check for damage and cracks (see FRONT BRAKE DISC INSPECTION
).
- Apply a thin coat of M-77 assembly paste (P/N 08798-9010) to the retainers on their mating surfaces (indicated by the arrows) against the caliper bracket.
- Install the pad retainers. Wipe excess assembly paste off the retainers. Keep the assembly paste off of the brake disc and brake pads.
- Apply a thin coat of M-77 assembly paste (P/N 08798-9010) to the pad side of the shims (A), the back of the brake pads (B) and the other areas indicated by the arrows. Wipe excess assembly paste off the pad shims and brake pads. Contaminated brake discs or pads reduce stopping ability. Keep grease and assembly paste off the brake discs and brake pads.
Fig. 21: Identifying Brake Discs And Brake Pads
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Install the brake pads and pad shims correctly. Install the pad with the wear indicator (C) on the upper inside. If you are reusing the brake pads, always reinstall the brake pads in their original positions to prevent a momentary loss of braking efficiency.
- Push in the piston (A) so the caliper will fit over the brake pads. Check the brake fluid level. The brake fluid may overflow if the reservoir is too full. Make sure the piston boot is in position to prevent damaging it when pivoting the caliper down.
Fig. 22: Identifying Flange Bolt With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Pivot the caliper (B) down into position. Install the flange bolt (C), and tighten it to the specified torque while holding the caliper pin (D) with a wrench being careful not to damage the pin boot.
- Install the brake hose mounting bolts (A), and tighten them to the specified torque.
Fig. 23: Identifying Brake Hose Mounting Bolts With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Clean the mating surfaces of the brake disc and the inside of the wheel, then install the front wheels.
- 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. |
- Add brake fluid as needed.
- 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 BRAKE HOSE AND LINE INSPECTION
).
Front Brake Disc Inspection
Runout
- Raise the front of the vehicle, and support it with safety stands in the proper locations (see
LIFT AND SUPPORT POINTS
).
- Remove the front wheels.
- Remove the brake pads (see FRONT BRAKE PAD INSPECTION AND REPLACEMENT
).
- Inspect the brake disc surface for damage and cracks. Clean the brake disc thoroughly, and remove all rust.
- Install suitable flat washers (A) and wheel nuts, and tighten the nuts to the specified torque to hold the brake disc securely against the hub.
Fig. 24: Identifying Suitable Flat Washer And Wheel Nuts With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Set up the dial gauge against the brake disc as shown, and measure the runout at 10 mm (3/8 in.) from the outer edge of the brake disc.
Brake disc runout:
Service limit: 0.04 mm (0.0016 in.)
- If the brake disc is beyond the service limit, refinish the brake disc with a commercially available on-car brake lathe.
Max. refinishing limit: 26.0 mm (1.02 in.)
NOTE: |
- If the brake disc is beyond the service limit for refinishing, replace it (see FRONT BRAKE DISC REPLACEMENT
).
- A new disc should be refinished if its runout is greater than 0.04 mm (0.0016 in.).
|
Thickness and Parallelism
- Raise the front of the vehicle, and support it with safety stands in the proper locations (see
LIFT AND SUPPORT POINTS
).
- Remove the front wheels.
- Remove the brake pads (see FRONT BRAKE PAD INSPECTION AND REPLACEMENT
).
- Using a micrometer, measure the brake disc thickness at eight points, about 45° apart and 10 mm (3/8 in.) in from the outer edge of the disc. Replace the brake disc if the smallest measurement is less than the max. refinishing limit.
Brake disc thickness:
Standard: 27.9-28.1 mm (1.10-1.11 in.)
Max. refinishing limit: 26.0 mm (1.02 in.)
Brake disc parallelism: 0.015 mm (0.0006 in.) max.
NOTE: |
This is the maximum allowable difference between the thickness measurements. |
Fig. 25: Measuring Brake Disc Thickness
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- If the brake disc is beyond the service limit for parallelism, refinish the brake disc with a commercially available on-car brake lathe.
Front Brake Disc Replacement
NOTE: |
Keep any grease off the brake disc and brake pads. |
- Raise the front of the vehicle, and support it with safety stands in the proper locations (see
LIFT AND SUPPORT POINTS
).
- Remove the front wheel.
- Remove the brake hose bracket mounting bolt (A).
Fig. 26: Identifying Brake Hose Bracket And Brake Caliper Bracket Mounting Bolt With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the brake caliper bracket mounting bolts (B), then remove the caliper assembly (C) from the knuckle. To prevent damage to the caliper assembly or brake hose, use a short piece of wire to hang the caliper assembly from the undercarriage. Do not twist the brake hose excessively.
- Remove the brake disc flat screws (A).
Fig. 27: Identifying Brake Disc Flat Screws With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the brake disc (B) from the hub.
NOTE: |
If the brake disc is stuck to the hub, thread two 8 x 1.25 mm bolts (C) into the brake disc to push it away from the hub. Turn each bolt 90 degrees to prevent the brake disc from binding. |
- Install the brake disc in the reverse order of removal.
NOTE: |
Before installing the brake disc, clean the mating surfaces of the hub and the inside of the brake disc. |
- Clean the mating surfaces of the brake disc and the inside of the wheel, then install the front wheel.
Front Brake Caliper Overhaul
CAUTION: |
Frequent inhalation of brake pad dust, regardless of material composition, could be hazardous to your health.
- Avoid breathing dust particles.
- Never use an air hose or brush to clean brake assemblies. Use an OSHA-approved vacuum cleaner.
|
Remove, disassemble, inspect, reassemble, and install the caliper, and note these items:
NOTE: |
Make sure that the caliper pins are installed correctly. Upper and lower caliper pins are different. If the caliper pins are installed in the wrong location, it will cause vibration, uneven or rapid brake pad wear, and possibly uneven tire wear. |
Master Cylinder Replacement
NOTE: |
- 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.
- Be careful not to damage or deform the brake lines during removal and installation.
- To prevent the brake fluid from flowing, plug and cover the hose ends and joints with a shop towel or equivalent.
|
- Remove the cable clamps from the body.
Fig. 29: Identifying Cable Clamps With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the access panels (A), then remove the front strut brace (B).
Fig. 30: Identifying Access Panels And Front Strut Brace With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the accelerator position sensor mounting bolt (C) from the strut brace.
- Remove the reservoir cap and brake fluid from the master cylinder reservoir with a syringe.
- Remove the primary and secondary brake lines (A) from the hose clamp (B).
Fig. 31: Identifying Primary And Secondary Brake Lines And Hose Clamp
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Disconnect the brake fluid level switch connector (A).
Fig. 32: Identifying Brake Fluid Level Switch Connector With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Disconnect the brake lines (B) from the master cylinder (C). To prevent spills, cover the hose joints with rags or shop towels.
- Remove the master cylinder mounting nuts (D) and washers.
- Remove the master cylinder from the brake booster (E). Be careful not to bend or damage the brake lines when removing the master cylinder.
- Remove the rod seal (F) from the master cylinder, or brake booster.
- Install the master cylinder in the reverse order of removal, and note these items:
- Replace all the rubber parts with new ones whenever the master cylinder is removed.
- Use a new rod seal on reassembly.
- Coat the inner bore lip and outer circumference of the new rod seal with the Shin-Etsu silicone grease (P/N 08798-9013).
- Install the rod seal onto the master cylinder with its grooved side (G) toward the master cylinder.
- Check the brake pedal height and free play after installing the master cylinder, and adjust it if necessary (see BRAKE PEDAL AND BRAKE PEDAL POSITION SWITCH ADJUSTMENT
).
- Bleed the brake system (see BRAKE SYSTEM BLEEDING
).
- Spin the wheels to check for brake drag.
Master Cylinder Inspection
- Inspect and note these items:
Brake Booster Test
Functional Test
- With the engine off, press the brake pedal several times to deplete the vacuum reservoir, then press the brake pedal hard, and hold it for 15 seconds. If the brake pedal sinks, either the master cylinder is bypassing internally, or the brake system is leaking. Inspect the brake hoses and lines (see BRAKE HOSE AND LINE INSPECTION
).
- Start the engine with the brake pedal pressed. If the brake pedal sinks slightly, the vacuum booster is operating normally. If the brake pedal height does not vary, do the brake system test (see BRAKE SYSTEM TEST
).
Leak Test
- Press the brake pedal with the engine running, then stop the engine. The brake pedal height should not very while pressed for 30 seconds. If the pedal height rises, go to step 6. If it does not rise, go to step 2.
- Start the engine and let it idle for 30 seconds. Turn the ignition switch off, and wait 30 seconds. Press the brake pedal several times using normal pressure. When the pedal is first pressed, it should be low. On consecutive applications, the pedal height should gradually rise. Does the pedal rise on each consecutive application? If it rises the booster is OK. If it does not go to step 3.
- Disconnect the brake booster vacuum hose (A) at the booster. The check valve (B) is built into the hose.
Fig. 34: Identifying Brake Booster Vacuum Hose And Check Valve
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Start the engine, and let it idle. There should be vacuum available. If no vacuum is available, the check valve is not working properly. Replace the brake booster vacuum hose and check valve, and retest. If vacuum is found, go to step 5.
- With the engine off, reconnect the vacuum hose to the brake booster.
- Start the engine, and then pinch the brake booster vacuum hose between the check valve and the booster.
- Turn the ignition switch off, and wait 30 seconds. Press the brake pedal several times using normal pressure. When the pedal is first pressed, it should be low. On consecutive applications, the pedal height should gradually rise.
- If the pedal position does not vary inspect the seal between the master cylinder and booster. If the seal is OK, replace the brake booster.
- If the pedal position varies, replace the brake booster vacuum hose/check valve assembly.
Brake Booster Replacement
- Make sure you have the anti-theft code for the audio system and navigation system, then write down the audio presets.
- Disconnect the negative cable from the battery.
- Remove the master cylinder (see MASTER CYLINDER REPLACEMENT
).
- Disconnect the brake booster vacuum hose (A) from the brake booster (B).
Fig. 35: Identifying Brake Booster Vacuum Hose And Brake Booster
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the under-hood fuse/relay box cover.
- Remove the under-hood fuse/relay box mounting bolt (A), then remove the under-hood fuse/relay box from the body.
Fig. 36: Identifying Under-Hood Fuse/Relay Box Mounting Bolt With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the air cleaner assembly (A).
Fig. 37: Identifying Air Cleaner Assembly
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the primary and secondary brake lines (A) from the hose clamp (B).
Fig. 38: Identifying Primary And Secondary Brake Lines From Hose Clamp
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the lock pin (A) and the joint pin (B), then disconnect the yoke from the brake pedal.
Fig. 39: Identifying Lock Pin And Joint Pin With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the brake booster mounting nuts (C).
- Remove the brake booster (A) from the engine compartment.
- Install the brake booster in the reverse order of removal, and note these items:
- Install the master cylinder after installing the brake booster (see MASTER CYLINDER REPLACEMENT
).
- Replace the master cylinder rod seal.
- Check the brake pedal height and free play after installing the master cylinder, and adjust it if necessary (see BRAKE PEDAL AND BRAKE PEDAL POSITION SWITCH ADJUSTMENT
).
- Bleed the brake system (see BRAKE SYSTEM BLEEDING
).
- Enter the anti-theft code for the audio system and the navigation system, then enter the client's audio presets.
- Set the clock (on vehicle without navigation).
Rear Brake Pad Inspection and Replacement
CAUTION: |
Frequent inhalation of brake pad dust, regardless of material composition, could be hazardous to your health.
- Avoid breathing dust particles.
- Never use an air hose or brush to clean brake assemblies. Use an OSHA-approved vacuum cleaner.
|
Inspection
- Raise the rear of the vehicle, and support it with safety stands in the proper locations (see
LIFT AND SUPPORT POINTS
).
- Remove the rear wheels.
- Check the thickness (A) of the inner pad (B) and outer pad (C). Do not include the thickness of the backing plate.
Brake pad thickness:
Standard: 8.9-9.1 mm (0.35-0.36 in.)
Service limit: 1.6 mm (0.06 in.)
Fig. 41: Checking Thickness Of Inner Pad And Outer Pad With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- If the brake pad thickness is less than the service limit, replace the rear brake pads as a set.
- Clean the mating surfaces of the brake disc and the inside of the wheel, then install the rear wheels.
Replacement
- Remove some brake fluid from the master cylinder.
- Raise the rear of the vehicle, and support it with safety stands in the proper locations (see
LIFT AND SUPPORT POINTS
).
- Remove the rear wheels.
- Remove the flange bolts (A) while holding the caliper pin (B) with a wrench being careful not to damage the pin boot, and remove the caliper (C). Check the hose and pin boots for damage and deterioration.
Fig. 42: Identifying Flange Bolts, Caliper Pin And Caliper
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the brake pads (A) and the pad shim (B).
Fig. 43: Identifying Brake Pads And Pad Shim
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the pad retainers (A).
Fig. 44: Identifying Pad Retainers
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Clean the caliper bracket (B) thoroughly; remove any rust, and check for grooves and cracks.
- Inspect the brake disc, and check for damage and cracks (see REAR BRAKE DISC INSPECTION
).
- Apply a thin coat of M-77 assembly paste (P/N 08798-9010) to the retainers on their mating surfaces (indicated by the arrows) against the caliper bracket (B).
- Install the pad retainers. Wipe excess assembly paste off the retainers. Keep the assembly paste off the brake disc and brake pads.
- Apply a thin coat of M-77 assembly paste (P/N 08798-9010) to both sides of the pad shim (A), the back of brake pads (B), and the other areas indicated by the arrows. Wipe excess assembly paste off the pad shims and pads. Contaminated brake discs or pads reduce stopping ability. Keep grease and paste off the brake discs and pads.
Fig. 45: Applying Coat Of Assembly Paste
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Install the brake pads and pad shims correctly. Install the brake pad with the wear indicator (C) on the bottom inside. If you are reusing the brake pads, always reinstall the brake pads in their original positions to prevent a momentary loss of braking efficiency.
- 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. |
Fig. 46: Identifying Caliper Flange Bolts With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Install the caliper. Install the flange bolts (D), and tighten it to the specified torque while holding the caliper pin (E) with a wrench being careful not to damage the pin boot.
- Clean the mating surfaces of the brake disc and the inside of the wheel, then install the rear wheels.
- 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. |
- Add brake fluid as needed.
- 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 BRAKE HOSE AND LINE INSPECTION
).
Rear Brake Disc Inspection
Runout
- Raise the rear of the vehicle, and support it with safety stands in the proper locations (see
LIFT AND SUPPORT POINTS
).
- Remove the rear wheels.
- Remove the brake pads (see REAR BRAKE PAD INSPECTION AND REPLACEMENT
).
- Inspect the brake disc surface for damage and cracks. Clean the brake disc thoroughly, and remove all rust.
- Install suitable flat washers (A) and wheel nuts, and tighten the wheel nuts to the specified torque to hold the brake disc securely against the hub.
Fig. 47: Identifying Suitable Flat Washer And Wheel Nuts With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Set up the dial gauge against the brake disc as shown, and measure the runout at 10 mm (3/8 in.) from the outer edge of the brake disc.
Brake disc runout:
Service limit: 0.04 mm (0.0016 in.)
- If the brake disc is beyond the service limit, refinish the brake disc with a commercially available on-car brake lathe.
Max. refinishing limit: 8.0 mm (0.31 in.)
NOTE: |
- If the brake disc is beyond the service limit for refinishing, replace it (see REAR BRAKE DISC REPLACEMENT
).
- A new disc should be refinished if its runout is greater than 0.04 mm (0.0016 in.).
|
Thickness and Parallelism
- Raise the rear of the vehicle, and support it with safety stands in the proper locations (see
LIFT AND SUPPORT POINTS
).
- Remove the rear wheels.
- Remove the brake pads (see REAR BRAKE PAD INSPECTION AND REPLACEMENT
).
- Using a micrometer (A), measure the disc thickness at eight points, about 45° apart and 10 mm (3/8 in.) in from the outer edge of the brake disc. Replace the brake disc if the smallest measurement is less than the max. refinishing limit.
Brake disc thickness:
Standard: 8.9-9.1 mm (0.35-0.36 in.)
Max. refinishing limit: 8.0 mm (0.31 in.)
Brake disc parallelism: 0.015 mm (0.0006 in.) max.
NOTE: |
This is the maximum allowable difference between the thickness measurements. |
Fig. 48: Measuring Disc Thickness
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- If the brake disc is beyond the service limit for parallelism, refinish the brake disc with a commercially available on-car brake lathe.
Rear Brake Disc Replacement
NOTE: |
Keep any grease off the brake disc and brake pads. |
- Raise the rear of the vehicle, and support it with safety stands in the proper locations (see
LIFT AND SUPPORT POINTS
).
- Remove the rear wheel.
- Remove the brake hose bracket mounting bolt (A).
Fig. 49: Identifying Brake Hose Bracket And Brake Caliper Bracket Mounting Bolts With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the brake caliper bracket mounting bolts (B), then remove the caliper assembly (C) from the knuckle. To prevent damage to the caliper assembly or brake hose, use a short piece of wire to hang the caliper assembly from the undercarriage. Do not twist the brake hose excessively.
- Remove the parking brake.
- Remove the brake disc flat screws (A).
Fig. 50: Identifying Brake Disc Flat Screws With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the brake disc (B) from the hub bearing unit.
NOTE: |
- If the brake disc is stuck to the hub bearing unit, thread two 8 x 1.25 mm bolts (C) into the brake disc to push it away from the hub bearing unit. Turn each bolt 90 degrees to prevent the brake disc from binding.
- After installation, check the parking brake, and adjust it necessary (see PEDAL FREE PLAY
).
|
- Install the brake disc in the reverse order of removal.
NOTE: |
Before installing the brake disc, clean the mating surfaces of the hub bearing unit and the inside of the brake disc. |
- Clean the mating surfaces of the brake disc and the inside of the wheel, then install the rear wheel.
Rear Brake Caliper Overhaul
CAUTION: |
Frequent inhalation of brake pad dust, regardless of material composition, could be hazardous to your health.
- Avoid breathing dust particles.
- Never use an air hose or brush to clean brake assemblies. Use an OSHA-approved vacuum cleaner.
|
Remove, disassemble, inspect, reassemble, and install the caliper, and note these items:
Brake Pedal Replacement
- Remove the lock pin (A) and joint pin (B).
Fig. 52: Identifying Lock Pin And Joint Pin With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the brake pedal support member (C).
- Disconnect the brake pedal position switch connector (D).
- Remove the brake pedal bracket mounting bolt (E) and nuts (F).
- Remove the brake pedal with bracket (G).
- Install in the reverse order of removal.
- Do the brake pedal and brake pedal position switch adjustment (see BRAKE PEDAL AND BRAKE PEDAL POSITION SWITCH ADJUSTMENT
).
Brake Hose and Line Inspection
- Inspect the brake hoses for damage, deterioration, leaks, interference, and twisting.
- Check the brake lines for damage, rusting, and leaks. Also check for bent brake lines.
- Check for leaks at hose and line joints and connections, and retighten if necessary.
- Check the master cylinder and VSA modulator-control unit for damage and leakage.
BRAKE HOSE AND LINE
Connection Point |
Component |
Connected to |
Specified Torque Value |
Note |
A |
Front brake caliper |
Brake hose |
34 N.m (3.5 kgf.m, 25 lbf.ft) |
Banjo bolt |
Bleed screw |
9 N.m (0.9 kgf.m, 7 lbf.ft) |
|
B |
Rear brake caliper |
Brake hose |
34 N.m (3.5 kgf.m, 25 lbf.ft) |
Banjo bolt |
Bleed screw |
9 N.m (0.9 kgf.m, 7 lbf.ft) |
|
C |
Brake hose |
Brake line |
15 N.m (1.5 kgf.m, 11 lbf.ft) |
Flare nut |
D |
Master cylinder |
Brake line (14 mm nut) |
30 N.m (3.1 kgf.m, 22 lbf.ft) |
Flare nut ('04-05 models) |
Brake line (12 mm nut) |
22 N.m (2.2 kgf.m, 16 lbf.ft) |
Flare nut ('06-08 models) |
E |
VSA modulator-control unit |
Brake line (14 mm nut) |
30 N.m (3.1 kgf.m, 22 lbf.ft) |
Flare nut ('04-05 models) |
Brake line (12 mm nut) |
22 N.m (2.2 kgf.m, 16 lbf.ft) |
Flare nut ('06-08 models) |
Brake line (10 mm nut) |
15 N.m (1.5 kgf.m, 11 lbf.ft) |
Flare nut |
F |
4-way joint |
Brake line |
15 N.m (1.5 kgf.m, 11 lbf.ft) |
Flare nut |
Fig. 53: Identifying Brake Hose And Line
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Brake Hose Replacement
NOTE: |
- Before reassembling, check that all parts are free of dirt and other foreign particles.
- Replace parts with new ones whenever specified to do so.
- Do not spill brake fluid on the vehicle; it may damage the paint; if brake fluid gets on the paint, wash it off immediately with water.
- To prevent the brake fluid from flowing, plug and cover the hose ends and joints with a shop towel or equivalent material.
|
- Remove the wheel.
- Disconnect the brake hose (A) from the brake line (B) using a 10 mm flare-nut wrench (C).
Fig. 54: Identifying Brake Hose And Brake Line
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the brake hose clip (A) from the brake hose (B).
Fig. 55: Identifying Brake Hose Clip And Brake Hose
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Remove the banjo bolt (C), and disconnect the brake hose from the caliper.
- Remove the brake hose from the knuckle.
- Install the brake hose (A) on the knuckle with the flange bolts (B) first, then connect the brake hose to the caliper with the banjo bolt (C) and new sealing washers (D).
Fig. 56: Identifying Brake Hose Knuckle Flange Bolts And Banjo Bolt With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Install the brake hose (A) onto the upper brake hose bracket (B) on the body with a new brake hose clip (C).
Fig. 57: Identifying Brake Hose, Upper Brake Hose Bracket And Clip With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Connect the brake line (D) to the brake hose.
- After installing the brake hose, bleed the brake system (see BRAKE SYSTEM BLEEDING
).
- Do the following checks:
- Check the brake hose and line joint for leaks, and tighten if necessary.
- Check the brake hoses for interference and twisting.
- Clean the mating surfaces of the brake disc and the inside of the wheel, then install the wheel.
Parking Brake Cable Replacement
Exploded View
Fig. 58: Exploded View Of Parking Brake Cable With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE: |
- The parking brake cables a must not be bent or distorted. This will lead to stiff operation and premature cable failure.
- Refer to the figure above as needed during this procedure.
|
- Release the parking brake lever fully.
- Remove the parking brake cable clip (A) from the brake cable (B).
Fig. 59: Identifying Parking Brake Cable Clip And Brake Cable
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Disconnect the parking brake cable from the lever (C).
- Remove the parking brake cable mounting hardware, then remove the cable.
- Install the parking brake cable in the reverse order of removal, and note these items:
- Be careful not to bend or distort the cable.
- Make sure the parking brake cable clip is fully seated on the cable housing.
- Do the parking brake adjustment (see ADJUSTMENT
).
- Apply the parking brake firmly 10 times then adjust it again.