Acura Coupes and Sedans 1994-2000 Repair Information

Bleeding the ABS System

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The Acura anti-lock brake system contains brake fluid under extremely high pressure within the pump, accumulator and modulator assembly. Do not disconnect or loosen any lines, hoses, fittings or components without properly relieving the system pressure. Use only tool 07HAA-SG00100 or equivalent to relieve pressure.


WARNING
Avoid spilling brake fluid on the vehicle's paint. It will damage the finish. If a spill does occur, wash it immediately with water.


WARNING
Never reuse brake fluid which has been bled from the brake system. Brake fluid absorbs moisture which can lower its boiling point, therefore re-using old, used, or contaminated fluid can decrease the effectiveness of the braking system.

RELIEVING ABS SYSTEM PRESSURE Integra, 2.2CL, 2.5TL, 3.2TL and 3.5RL



This procedure covers 1994-97 vehicles. Starting in 1998, there is no provision for relieving the ABS pressure.

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the cap from the maintenance bleeder on the modulator unit.
  4.  
  5. Attach a hose to the bleeder. Place the free end of the hose in a suitable container.
  6.  
  7. While holding the hose with your hand, slowly open the bleeder 1 / 8 - 1 / 4 turn to collect the brake fluid in the container.
  8.  


CAUTION
Be very careful not to loosen the maintenance bleeder valve too much. The high-pressure fluid can burst out!

  1. Tighten the bleeder fitting and install the service cap.
  2.  
  3. After repairs are complete, connect the negative battery cable.
  4.  

See Figure 1

Click image to see an enlarged view

Fig. Fig. 1: Relieving the anti-lock brake system pressure- Integra, 2.2CL, 2.5TL, 3.2TL and 3.5RL

Vigor and Legend

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the red service cap from the bleeder fitting on the modulator body.
  4.  
  5. Using Bleeder T-wrench (Special Tool No. 07HAA-SG00101), or equivalent, slowly open the bleeder screw 1 / 4 turn to collect high-pressure fluid into the reservoir.
  6.  
  7. After the system pressure drops, open the bleeder 1 full turn, to completely drain the accumulator.
  8.  
  9. Tighten the bleeder fitting and install the red service cap.
  10.  
  11. After repairs are complete, connect the negative battery cable.
  12.  

See Figure 2

Click image to see an enlarged view

Fig. Fig. 2: View of the anti-lock hydraulic unit and bleeder T-wrench needed to relieve the system pressure on the Legend and Vigor

BRAKE LINES AND CALIPERS



The brake lines and calipers are bled in the usual fashion with no special procedures required. Refer to the bleeding procedure located earlier in this section. Make certain the master cylinder reservoir is filled before the bleeding is begun and check the level frequently.

BLEEDING HIGH PRESSURE COMPONENTS



The modulator, accumulator and power unit must be bled if any of the lines are removed or loosened during repairs or if any component is replaced. Bleeding can only be accomplished with the ABS checker (07HAJ-SG00100) and the special bleeder T-wrench (07HAA-SG00100) or their equivalents. Do not attempt to use any other procedures or tools to bleed the high pressure components.

  1. Park the vehicle on level ground. Block the wheels. Place the shift selector in P (automatic transaxle) or N (manual transaxle) Make certain the ignition is in the OFF position.
  2.  
  3. Detach the 6-pin inspection connector and connect to the checker. The pink connector is usually located under the driver's or passenger seat. Connect the ABS checker.
  4.  
  5. Make certain the brake fluid reservoir on the modulator is filled to the upper mark. Do not reuse any fluid previously bled from the system.
  6.  
  7. Using the bleeder tool, bleed high pressure fluid from the port on the power unit. Close the bleeder port.
  8.  
  9. Start the engine and release the parking brake.
  10.  
  11. Select Modes 2, 3, 4 and 5 on the ABS checker, depress and hold the brake pedal firmly and press the START TEST button on the checker. There should be at least two strong kickbacks through the brake pedal.
  12.  
  13. If there is poor or no kickback in the pedal, turn the ignition switch OFF . Repeat the bleeding at the power unit and repeat the mode tests. (Steps 5 and 6, above)
  14.  
  15. Once proper strong pedal kickback is achieved, turn the ignition OFF . Check and adjust the fluid level in the modulator reservoir as necessary. Secure the cap on the reservoir.
  16.  
  17. Use the ABS checker to test the system in all modes.
  18.  

See Figures 3 and 4

Click image to see an enlarged view

Fig. Fig. 3: Brake Specifications



Click image to see an enlarged view

Fig. Fig. 4: Brake Specification

 
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