Task Priority MLR AST MAST Chapter STC Course # BRAKES (A5) General: Brake Systems Diagnosis 1. Identify and interpret brake P-1 3, 8, 10, 15045.11W1 system concerns; determine 11, 15 necessary action. Research applicable vehicle and P-1 1 10041.12W 2. service information, vehicle service history, service precautions, and technical service bulletins. 3. Describe procedure for P-1 8, 10. 15 performing a road test to check brake system operation; including an anti-lock brake system (ABS). Hydraulic System Diagnosis and Repair 1. Diagnose pressure concerns in P-1 2, 3 15045.11W1 the brake system using hydraulic principles (Pascal’s Law). 2. Measure brake pedal height, P-1 3 15045.11W1 travel, and free play (as applicable); determine necessary action. 3. Check master cylinder for P-1 3 15045.11W1 internal/external leaks and proper operation; determine necessary action. 4. Remove, bench bleed, and P-1 3 15045.11W1 reinstall master cylinder. 5. Diagnose poor stopping, pulling P-3 3, 4 15045.11W1 or dragging concerns caused by malfunctions in the hydraulic system; determine necessary action. 6. Inspect brake lines, flexible P-1 5 15045.11W1 hoses, and fittings for leaks, dents, kinks, rust, cracks, bulging, and wear; check for loose fittings and supports;
Task Priority MLR AST MAST Chapter STC Course # BRAKES (A5) General: Brake Systems Diagnosis 1. Identify and interpret brake system concerns; determine necessary action. P-1 3, 8, 10, 11, 15 15045.11W1 2. Research applicable vehicle and service information, vehicle service history, service precautions, and technical service bulletins. P-1 1 10041.12W 3. Describe procedure for performing a road test to check brake system operation; including an anti-lock brake system (ABS). P-1 8, 10. 15 Hydraulic System Diagnosis and Repair 1. Diagnose pressure concerns in the brake system using hydraulic principles (Pascal’s Law). P-1 2, 3 15045.11W1 2. Measure brake pedal height, travel, and free play (as applicable); determine necessary action. P-1 3 15045.11W1 3. Check master cylinder for internal/external leaks and proper operation; determine necessary action. P-1 3 15045.11W1 4. Remove, bench bleed, and reinstall master cylinder. P-1 3 15045.11W1 5. Diagnose poor stopping, pulling or dragging concerns caused by malfunctions in the hydraulic system; determine necessary action. P-3 3, 4 15045.11W1 6. Inspect brake lines, flexible hoses, and fittings for leaks, dents, kinks, rust, cracks, bulging, and wear; check for loose fittings and supports; P-1 5 15045.11W1
GM_Brakes_Steer_Susp_IM.docx