CR-V 2007-2008

Hybrid Vehicles

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Bleeding The ABS System



Specific to:

Honda CR-V 2007-2008

The bleeding procedure for the ABS System is the same as the conventional bleeding procedure. Refer to Brakes, Bleeding the Brake System, Bleeding Procedure.

Diagnosis & Testing



Specific to:

Honda CR-V 2007-2008

The ABS system detects wheel revolution while braking and improves handling stability during sudden braking by electrically preventing wheel lockup. Maneuverability is also improved for avoiding obstacles.

Use the Honda Diagnostic System (HDS) tool to run diagnostics and tests of the ABS system.

General Information



Precautions


Certain components within the ABS system are not intended to be serviced or repaired individually.
 
Do not use rubber hoses or other parts not specifically specified for and ABS system. When using repair kits, replace all parts included in the kit. Partial or incorrect repair may lead to functional problems and require the replacement of components.
 
Lubricate rubber parts with clean, fresh brake fluid to ease assembly. Do not use shop air to clean parts; damage to rubber components may result.
 
Use only DOT 3 brake fluid from an unopened container.
 
If any hydraulic component or line is removed or replaced, it may be necessary to bleed the entire system.
 
A clean repair area is essential. Always clean the reservoir and cap thoroughly before removing the cap. The slightest amount of dirt in the fluid may plug an orifice and impair the system function. Perform repairs after components have been thoroughly cleaned; use only denatured alcohol to clean components. Do not allow ABS components to come into contact with any substance containing mineral oil; this includes used shop rags.
 
The Anti-Lock control unit is a microprocessor similar to other computer units in the vehicle. Ensure that the ignition switch is OFF before removing or installing controller harnesses. Avoid static electricity discharge at or near the controller.
 
If any arc welding is to be done on the vehicle, the control unit should be unplugged before welding operations begin.
 

Hydraulic Control Module



Removal & Installation
  1. Before servicing the vehicle, refer to the Precautions Section.
    NOTE
    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. 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 material.

  2.  
  3. Turn the ignition switch to LOCK (0).
  4.  
  5. Disconnect the hydraulic control module, also called the Vehicle Stability Assist (VSA) modulator-control unit, by disengaging the 46P connector (A), pulling up the lock (B); the connector disconnects itself.
  6.  
  7. Disconnect the 6 brake lines from the VSA modulator-control unit.
    NOTE
    Brake lines are connected to the master cylinder (C) and to the right-front (D), the left-rear (E), the right-rear (F), and the left-front (G) brake systems.

  8.  
  9. Remove the VSA modulator-control unit (H) with the bracket (I) from the body.
  10.  
  11. Remove the locknuts (J), then remove the VSA modulator-control unit from the bracket.
  12.  

To install:

  1. During installation, install a new bushing (K) and new grommet (L). Otherwise, unwanted noise and vibration may be transmitted to the vehicle.
  2.  
  3. Install the VSA modulator-control unit to the bracket, then install new locknuts.
  4.  
  5. Install the bracket with the VSA modulator-control unit.
  6.  
  7. Reconnect the 6 brake lines, then tighten the flare nuts to 11 ft. lbs. (15 Nm).
  8.  
  9. Align the connecting surface of the VSA modulator-control unit 46P connector to the VSA modulator-control unit.
  10.  
  11. Lower the lock of the VSA modulator-control unit 46P connector, then confirm that the connector is fully seated.
  12.  
  13. Bleed the brake system. Refer to Brakes, Bleeding the Brake System, Bleeding Procedure.
  14.  
  15. Start the engine, and check that the ABS and the VSA indicators go off.
  16.  
  17. Test-drive the vehicle, and check that the ABS and VSA indicators do not come on.
    NOTE
    If the brake pedal is spongy, there may be air trapped in the modulator, and then induced into the normal brake system during modulation. Bleed the brake system again.



    Click image to see an enlarged view

    Fig. Exploded view of the VSA modulator-control unit and tightening specifications

  18.  

Wheel Speed Sensor Rings (Toothed Rings)



Removal & Installation

The wheel speed sensor ring is an integral part of the wheel hub and bearing assembly and is not serviced separately.

Wheel Speed Sensors



Removal & Installation
Front Wheel

Specific to:

Honda CR-V 2007-2008

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Turn the ignition switch to LOCK (0).
  4.  
  5. Release the connector holding clamps (A), then disconnect the wheel speed sensor connector (B).
  6.  
  7. Remove the clips, the bolt, and the wheel speed sensor (C).
  8.  

To install:

  1. Install the wheel speed sensor in the reverse order of removal.
  2.  
  3. Install the sensor carefully to avoid twisting the wires.
  4.  
  5. If the wheel speed sensor comes in contact with the wheel bearing, it is faulty. Investigate the cause before replacing the sensor.
  6.  
  7. Start the engine and check that the ABS and the VSA indicators go off.
  8.  
  9. Test-drive the vehicle, and check that the ABS and the VSA indicators do not come on.

    Click image to see an enlarged view

    Fig. View of front wheel speed sensor

  10.  

Rear Wheel

Specific to:

Honda CR-V 2007-2008

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Turn the ignition switch to LOCK (0).
  4.  
  5. Release the connector holding clamps (A), then disconnect the wheel speed sensor connector (B).
  6.  
  7. Remove the clips, the bolt, and the wheel speed sensor (C).
  8.  

To install:

  1. Install the wheel speed sensor in the reverse order of removal.
  2.  
  3. Apply multipurpose grease to the O-ring (C).
  4.  
  5. Install the sensor carefully to avoid twisting the wires.
  6.  
  7. If the wheel speed sensor comes in contact with the hub bearing unit, it is faulty. Investigate the cause before replacing the sensor.
  8.  
  9. Start the engine and check that the ABS and the VSA indicators go off.
  10.  
  11. Test-drive the vehicle and check that the ABS and the VSA indicators do not come on.

    Click image to see an enlarged view

    Fig. View of rear wheel speed sensor

  12.  

 
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