chassis
Hydraulic Brake Circuit
Pedal, master cylinder, lines, caliper and disc. Click each part to learn its role and tests.
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How to use this diagram
- Click any component to reveal its role, a typical value for training, how to test it and likely faults.
- Wires and connectors can be selected too — voltage drop testing is the key skill.
- Safety warnings are shown where a procedure carries risk.
All values shown are training examples. Real thresholds depend on the manufacturer, engine, temperature and system — always confirm with the vehicle service documentation.