Tech Tips
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
| Symptom | Suspected Area | Link |
|---|---|---|
| Low or spongy pedal | Fluid leaks in brake system | - |
| Air in brake system | ||
| Front brake piston seals (worn or damaged) | ||
| Rear brake piston seals (worn or damaged) | ||
| Master cylinder*1 (faulty) | ||
| Master cylinder*2 (faulty) | ||
| Brake drag | Brake pedal free play*1 (insufficient) | |
| Brake pedal free play*2 (insufficient) | ||
| Parking brake lever travel (out of adjustment) | ||
| Parking brake cable (sticking) | ||
| Front brake pad (cracked or distorted) | ||
| Rear brake pad (cracked or distorted) | ||
| Front brake piston (stuck) | ||
| Front brake piston (seized) | ||
| Vacuum leaks in booster system*1 | ||
| Vacuum leaks in booster system*2 | ||
| Master cylinder*1 (faulty) | ||
| Master cylinder*2 (faulty) | ||
| Brake pull | Front brake piston (stuck) | |
| Front brake pad (oily) | ||
| Rear brake pad (oily) | ||
| Front brake piston (seized) | ||
| Front disc (scored) | ||
| Rear disc (scored) | ||
| Front brake pad (cracked or distorted) | ||
| Rear brake pad (cracked or distorted) | ||
| Hard pedal but braking inefficient | Fluid leaks in brake system | - |
| Air in brake system | ||
| Front brake pad (worn) | ||
| Rear brake pad (worn) | ||
| Front brake pad (cracked or distorted) | ||
| Rear brake pad (cracked or distorted) | ||
| Front brake pad (oily) | ||
| Rear brake pad (oily) | ||
| Front brake pad (glazed) | ||
| Rear brake pad (glazed) | ||
| Front disc (scored) | ||
| Rear disc (scored) | ||
| Vacuum leaks in booster system*1 | ||
| Vacuum leaks in booster system*2 | ||
| Noise from brakes | Front brake pad (cracked or distorted) | |
| Rear brake pad (cracked or distorted) | ||
| Front brake cylinder mounting bolt (loose) | ||
| Rear brake cylinder mounting bolt (loose) | ||
| Front disc (scored) | ||
| Rear disc (scored) | ||
| Front brake pad support plate (loose) | ||
| Rear brake pad support plate (loose) | ||
| Front brake slide pin (worn) | ||
| Rear brake slide pin (worn) | ||
| Front brake pad (dirty) | ||
| Rear brake pad (dirty) | ||
| Front brake pad (glazed) | ||
| Rear brake pad (glazed) | ||
| Front brake anti-squeal shim*3 (damaged) |
*1: for LHD
*2: for RHD
*3: except 1AD-FTV