Buick Regal: Brake Pressure Modulator Valve Bracket Replacement

Preliminary Procedure

Electronic Brake and Traction Control Module with Brake Pressure Modulator Valve Replacement (2.0L LTG) or Electronic Brake and Traction Control Module with Brake Pressure Modulator Valve Replacement (3.6L LGX)

1. Brake Pressure Modulator Valve Bracket Bolt
   CAUTION: Fastener Caution
   Tighten
   9N.m (80 lb in)
2. Brake Pressure Modulator Valve Bracket Nut[2x]
   Tighten
   9N.m (80 lb in)
3. Brake Pressure Modulator Valve Bracket

FRONT WHEEL SPEED SENSOR REPLACEMENT

Removal Procedure

WARNING: Brake Dust Warning

1. Front Wheelhouse Liner - Remove.

2. Wheel Speed Sensor Electrical Connector - Disconnect.

3.

Retainer(1)@Radiator Support - Release.

4.

Retainer(1)@Side Rail - Release[3x].

5.

Retainer(1)@Front Brake Hose - Release[2x].

6.

Retainer(1)@Steering Knuckle - Release.

7.

Wheel Speed Sensor Bolt(1) - Remove.

8.

Wheel Speed Sensor(1) - Remove.

Installation Procedure

1.

Wheel Speed Sensor(1) - Install.

2.

CAUTION: Fastener Caution.

Wheel Speed Sensor Bolt(1) - Install and tighten9 N.m (80 lb in).

3.

Retainer(1)@Steering Knuckle - Secure.

4.

Retainer(1)@Front Brake Hose - Secure[2x].

5.

Retainer(1)@Side Rail - Secure[3x].

6.

Retainer(1)@Radiator Support - Secure.

7. Wheel Speed Sensor Electrical Connector - Connect.

8. Front Wheelhouse Liner - Install.

9. Verify the repair is complete. Refer to Diagnostic Repair Verification.

REAR WHEEL SPEED SENSOR REPLACEMENT (FRONT WHEEL DRIVE)

Removal Procedure

WARNING: Brake Dust Warning.

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

2. Wheel Speed Sensor Electrical Connector - Disconnect.

3.

Retainer(1)@Rear Suspension Cradle - Release.

4.

Retainer(1)@Rear Suspension Cradle - Release.

5.

Retainer(1)@Upper Control Arm - Release[4x].

6.

Wheel Speed Sensor Bolt(1) - Remove.

7.

Wheel Speed Sensor(1) - Remove.

Installation Procedure

1.

Wheel Speed Sensor(1) - Install.

2.

CAUTION: Fastener Caution.

Wheel Speed Sensor Bolt(1) - Install and tighten9 N.m (80 lb in).

3.

Retainer(1)@Upper Control Arm - Secure[4x].

4.

Retainer(1)@Rear Suspension Cradle - Secure.

5.

Retainer(1)@Rear Suspension Cradle - Secure.

6. Wheel Speed Sensor Electrical Connector - Connect.

7. Verify the repair is complete. Refer to Diagnostic Repair Verification.

REAR WHEEL SPEED SENSOR REPLACEMENT (ALL WHEEL DRIVE)

Removal Procedure

WARNING: Brake Dust Warning

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.

3.

Wheel Speed Sensor Electrical Connector(1) - Disconnect.

4.

Retainer(1)@Rear Suspension Cradle - Release.

5.

Retainer(1)@Rear Suspension Cradle - Release.

6.

Retainer(1)@Rear Suspension Upper Trailing Link - Release[2x].

7.

Retainer(1)@Rear Suspension Knuckle - Release.

8.

Wheel Speed Sensor Bolt(1) - Remove.

9.

Wheel Speed Sensor(1) - Remove.

Installation Procedure

1.

Wheel Speed Sensor(1) - Install.

2.

CAUTION: Fastener Caution

Wheel Speed Sensor Bolt(1) - Install and tighten9 N.m (80 lb in).

3.

Retainer(1)@Rear Suspension Knuckle - Secure.

4.

Retainer(1)@Rear Suspension Upper Trailing Link - Secure[2x].

5.

Retainer(1)@Rear Suspension Cradle - Secure.

6.

Retainer(1)@Rear Suspension Cradle - Secure.

7.

Wheel Speed Sensor Electrical Connector(1) - Connect.

8. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.

9. Verify the repair is complete. Refer to Diagnostic Repair Verification.

VEHICLE YAW SENSOR LEARN

The yaw rate sensor does not require calibration often. Calibrating the yaw rate sensor might be required after certain service procedures are performed. Some of these procedures are as follows:

• Yaw Rate Sensor replacement
• Electronic Brake Control Module replacement
• Inflatable Restraint Sensing and Diagnostic Module replacement
• Multi-axis Acceleration Sensor Module replacement (UGN)

The yaw rate sensor learn procedure can be completed with a scan tool using the following steps:

1. Place vehicle on a level surface.

2. Apply the parking brake, or set the transmission in the Park position.

3. Install the scan tool to the data link connector.

4. Ignition ON/Vehicle in Service Mode.

5. Select Yaw Rate Sensor Learn in the Electronic Brake Control Module Configuration/Reset Functions list.

6. Follow the scan tool directions to complete the calibration procedure.

7. Clear any DTCs that may be set.

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