How the system works
A high-level system map. Component roles and exact circuit behavior vary by vehicle.
- 01Braking requestDriver or control system requests braking
- 02Force transferForce is transmitted hydraulically or electronically
- 03Vehicle decelerationFriction or regeneration slows the vehicle
- 04Wheel controlABS and stability control manage wheel behavior
- 05Heat managementHeat is released and components recover
Major components in context
Provides replaceable friction material
Open componentBrake rotorProvides a rotating friction surface and absorbs heat
Open componentApply and release friction force
System contextSupports wheel-slip and stability control
System contextConvert and amplify driver input
System contextSymptom patterns and first direction
Pedal or steering vibration
Inspect and measure the complete wheel-end before calling a rotor warped.
Follow the diagnostic pathSYMPTOMGrinding, pull, or wheel heat
Stop driving when braking is reduced, a wheel overheats, or metal contact is suspected.
Follow the diagnostic pathSYMPTOMSoft, sinking, or very low pedal
Treat as a safety-critical hydraulic concern and arrange inspection.
Follow the diagnostic pathA system-level diagnostic method
Confirm the symptom only when safe
Inspect fluid condition, leaks, warning indicators, and pedal behavior
Inspect both sides at every relevant wheel
Measure against exact service limits and procedures
Correct the root condition and verify balanced braking
Evidence worth preserving
Pedal and warning-lamp behavior
Side-to-side wear and temperature comparison
Leak, hose, hardware, and friction condition
Runout, thickness, and service-limit results from verified data
Use the VIN, installed equipment, current manufacturer information, and applicable safety rules.
Safety and professional boundary
Stopping and vehicle-support warning
Do not drive a vehicle with reduced braking, active leakage, severe pull, overheating, or unsafe pedal travel. A jack alone is not approved support for wheel-end work.