Warning: Refer to Brake Fluid Irritant Warning in the Preface section.

Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution in the Preface section.

Preliminary Procedures

1. Turn the ignition switch to the OFF position.
2. Clean the area around the brake master cylinder pressure sensor of any foreign material or debris.
3. Place a clean shop cloth around the brake master cylinder pressure sensor mounting block to absorb any brake fluid.
4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

1

Brake Master Cylinder Pressure Sensor Electrical Connector

2

Brake Master Cylinder Pressure Sensor

Caution: Refer to Fastener Caution in the Preface section.

Procedure

1. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding.
2. Turn the ignition switch to the ON position. DO NOT start the engine.
3. Perform the Diagnostic System Check - Vehicle.
4. Observe the feel of the brake pedal after performing the diagnostic system check. If the brake pedal feels spongy, perform the Antilock Brake System Automated Bleed Procedure.
5. Install a scan tool.
6. Using the special functions menu on the scan tool, perform the brake master cylinder pressure sensor learn procedure. Refer to Service Programming System (SPS).

Tighten
18 N·m (13 lb ft)