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 piston seals*c (worn or damaged) | ||
| Front piston seals*d (worn or damaged) | ||
| Rear piston seals*e (worn or damaged) | ||
| Rear piston seals*f (worn or damaged) | ||
| Brake master cylinder sub-assembly*a (faulty) | ||
| Brake master cylinder sub-assembly*b (faulty) | ||
| Brake drag | Brake pedal free play*a (insufficient) | |
| Brake pedal free play*b (insufficient) | ||
| Parking brake actuator | ||
| Front disc brake pad*c (cracked or distorted) | ||
| Front disc brake pad*d (cracked or distorted) | ||
| Rear disc brake pad*e (cracked or distorted) | ||
| Rear disc brake pad*f (cracked or distorted) | ||
| Front disc brake piston*c (stuck) | ||
| Front disc brake piston*d (stuck) | ||
| Front disc brake piston*c (seized) | ||
| Front disc brake piston*d (seized) | ||
| Rear disc brake piston*e (stuck) | ||
| Rear disc brake piston*f (stuck) | ||
| Rear disc brake piston*e (seized) | ||
| Rear disc brake piston*f (seized) | ||
| Vacuum leaks in booster system*a | ||
| Vacuum leaks in booster system*b | ||
| Brake master cylinder sub-assembly*a (faulty) | ||
| Brake master cylinder sub-assembly*b (faulty) | ||
| Brake pull | Front disc brake piston*c (stuck) | |
| Front disc brake piston*d (stuck) | ||
| Rear disc brake piston*e (stuck) | ||
| Rear disc brake piston*f (stuck) | ||
| Front disc brake pad*c (oily) | ||
| Front disc brake pad*d (oily) | ||
| Rear disc brake pad*e (oily) | ||
| Rear disc brake pad*f (oily) | ||
| Front disc brake piston*c (seized) | ||
| Front disc brake piston*d (seized) | ||
| Rear disc brake piston*e (seized) | ||
| Rear disc brake piston*f (seized) | ||
| Front disc*c (scored) | ||
| Front disc*d (scored) | ||
| Rear disc*e (scored) | ||
| Rear disc*f (scored) | ||
| Front disc brake pad*c (cracked or distorted) | ||
| Front disc brake pad*d (cracked or distorted) | ||
| Rear disc brake pad*e (cracked or distorted) | ||
| Rear disc brake pad*f (cracked or distorted) | ||
| Hard pedal but braking inefficient | Fluid leaks in brake system | - |
| Air in brake system | ||
| Front disc brake pad*c (worn) | ||
| Front disc brake pad*d (worn) | ||
| Rear disc brake pad*e (worn) | ||
| Rear disc brake pad*f (worn) | ||
| Front disc brake pad*c (cracked or distorted) | ||
| Front disc brake pad*d (cracked or distorted) | ||
| Rear disc brake pad*e (cracked or distorted) | ||
| Rear disc brake pad*f (cracked or distorted) | ||
| Front disc brake pad*c (oily) | ||
| Front disc brake pad*d (oily) | ||
| Rear disc brake pad*e (oily) | ||
| Rear disc brake pad*f (oily) | ||
| Front disc brake pad*c (glazed) | ||
| Front disc brake pad*d (glazed) | ||
| Rear disc brake pad*e (glazed) | ||
| Rear disc brake pad*f (glazed) | ||
| Front disc*c (scored) | ||
| Front disc*d (scored) | ||
| Rear disc*e (scored) | ||
| Rear disc*f (scored) | ||
| Vacuum leaks in booster system*a | ||
| Vacuum leaks in booster system*b | ||
| Noise from brakes | Front disc brake pad*c (cracked or distorted) | |
| Front disc brake pad*d (cracked or distorted) | ||
| Rear disc brake pad*e (cracked or distorted) | ||
| Rear disc brake pad*f (cracked or distorted) | ||
| Front disc brake cylinder mounting bolt*c (loose) | ||
| Front disc brake cylinder mounting bolt*d (loose) | ||
| Rear disc brake cylinder mounting bolt*e (loose) | ||
| Rear disc brake cylinder mounting bolt*f (loose) | ||
| Front disc*c (scored) | ||
| Front disc*d (scored) | ||
| Rear disc*e (scored) | ||
| Rear disc*f (scored) | ||
| Anti-rattle spring*c (loose) | ||
| Anti-rattle spring*d (loose) | ||
| Rear disc brake anti-rattle spring*e (loose) | ||
| Rear disc brake anti-rattle spring*f (loose) | ||
| Front disc brake pad*c (dirty) | ||
| Front disc brake pad*d (dirty) | ||
| Rear disc brake pad*e (dirty) | ||
| Rear disc brake pad*f (dirty) | ||
| Front disc brake pad*c (glazed) | ||
| Front disc brake pad*d (glazed) | ||
| Rear disc brake pad*e (glazed) | ||
| Rear disc brake pad*f (glazed) | ||
| Front brake anti-squeal shim*c (damaged) | ||
| Front brake anti-squeal shim*d (damaged) | ||
| Rear brake anti-squeal shim*e (damaged) | ||
| Rear brake anti-squeal shim*f (damaged) |
*a: for LHD
*b: for RHD
*c: FRONT BRAKE (for 6-Pot Caliper)
*d: FRONT BRAKE (except 6-Pot Caliper)
*e: REAR BRAKE (for 4-Pot Caliper)
*f: REAR BRAKE (except 4-Pot Caliper)