Proportional to that signal, the accumulators release pressure to the brake calipers. Action 3 Troubleshooting and Testing Figure 3. Sold as is, no refunds. Repeat Steps 13 and 14 with the second bleeder screw. Manual bleeding procedures could result in loss of braking, resulting in serious personal injury.
Park the vehicle on a level surface. If brake caliper circuit bleeding is required, refer to the procedure in this section. Attach a bleeder bottle hose to the bleeder fitting at the wheel end. If not in spec, indicates the Pressure Supply Valve may have failed. Do not install a damaged reservoir. Enclose the brake assembly within a negative pressure enclosure.
When the pedal is released, brake fluid returns from the brake calipers to the reservoir, and line pressure is reduced to zero. A sensor spring clip holds the wheel speed sensor in place. Press the sensor spring clip into the sensor bracket, located on the rear axle, until it stops. Inspect the entire hydraulic brake system including brake lines and line fitting connections for the presence of brake fluid damage or other evidence of a leak. Some scientists believe other types of non-asbestos fibers, when inhaled, can cause similar diseases of the lung. Actuate the pump several times by depressing the spring-loaded pump button by hand. Remove the bleeder hose and tighten the bleeder screw to the torque value specified by the component manufacturer.
Monitor the reservoir fluid level to ensure it does not overflow. Remove the sensor cable from any cable clamps or clips. Failure to depressurize the system may result in personal injury or death. Do not damage the reservoir outlet. Select Parking Brake to display the Parking Brake test screen. Remove the protective cover from the end of the bleeder fitting on one brake caliper.
During installation, use the new seal plate included with the relay valve replacement kit. Hydraulic brake fluid may also damage certain non-metal surfaces. The orientation should match Figure 4. During the reflash the ignition should be off and the brake pedal must be depressed through the entire process, which may take several minutes. Use a clean rag to carefully clean the outside of the master cylinder and master cylinder reservoir. Do not work under a vehicle supported only by jacks. Lift the reservoir off the master cylinder.
Bleed procedures appear in Section 5 of this manual. Install the sensor spring clip. Install a suitable adapter from the fill and bleed equipment to the master cylinder reservoir filler neck. Check the system for external leaks. Select Close to exit this screen.
Both motors will start running until both circuits reach the cut-off pressure at approximately 2000 psi 138 bar. Driving the vehicle with active faults present can result in an accident and serious personal injury. Park the vehicle on a level surface. Do not release the brake pedal. Highlight the component you wish to test, then select the Send button to actuate the component. Other unopened units also available.
Remove and discard the rubber-coated seal plate. Apply the parking brake and block the wheels to prevent the vehicle from moving. Place supports under the front axle. Block the wheels to prevent the vehicle from moving. Description 3 Troubleshooting and Testing Figure 3.