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*a (worn or damaged) | ||
| Front piston seals*b (worn or damaged) | ||
| Rear piston seals (worn or damaged) | ||
| Brake master cylinder sub-assembly*c (faulty) | ||
| Brake master cylinder sub-assembly*d (faulty) | ||
| Brake booster push rod*c (adjustment necessary) | ||
| Brake booster push rod*d (adjustment necessary) | ||
| Brake drag | Brake pedal free play*c (insufficient) | |
| Brake pedal free play*d (insufficient) | ||
| Parking brake pedal travel (out of adjustment) | ||
| Parking brake cable (sticking) | ||
| Parking brake shoe clearance (out of adjustment) | ||
| Front disc brake pad*a (cracked or distorted) | ||
| Front disc brake pad*b (cracked or distorted) | Click here | |
| Rear disc brake pad (cracked or distorted) | Click here | |
| Front brake piston*a (stuck) | ||
| Front brake piston*b (stuck) | Click here | |
| Rear brake piston (stuck) | Click here | |
| Front brake piston*a (seized) | Click here | |
| Front brake piston*b (seized) | Click here | |
| Rear brake piston (seized) | Click here | |
| Parking brake shoe return tension spring (damaged) | ||
| Vacuum leaks in booster system*c | ||
| Vacuum leaks in booster system*d | ||
| Brake master cylinder sub-assembly*c (faulty) | ||
| Brake master cylinder sub-assembly*d (faulty) | ||
| Brake booster push rod*c (adjustment necessary) | Click here | |
| Brake booster push rod*d (adjustment necessary) | ||
| Brake pull | Front brake piston*a (stuck) | |
| Front brake piston*b (stuck) | Click here | |
| Rear brake piston (stuck) | Click here | |
| Front disc brake pad*a (oily) | Click here | |
| Front disc brake pad*b (oily) | Click here | |
| Rear disc brake pad (oily) | Click here | |
| Front brake piston*a (seized) | ||
| Front brake piston*b (seized) | Click here | |
| Rear brake piston (seized) | Click here | |
| Front disc*a (scored) | Click here | |
| Front disc*b (scored) | ||
| Rear disc (scored) | ||
| Front disc brake pad*a (cracked or distorted) | ||
| Front disc brake pad*b (cracked or distorted) | ||
| Rear disc brake pad (cracked or distorted) | ||
| Hard pedal but braking inefficient | Fluid leaks in brake system | - |
| Air in brake system | ||
| Front disc brake pad*a (worn) | ||
| Front disc brake pad*b (worn) | ||
| Rear disc brake pad (worn) | ||
| Front disc brake pad*a (cracked or distorted) | ||
| Front disc brake pad*b (cracked or distorted) | ||
| Rear disc brake pad (cracked or distorted) | ||
| Front disc brake pad*a (oily) | ||
| Front disc brake pad*b (oily) | ||
| Rear disc brake pad (oily) | ||
| Front disc brake pad*a (glazed) | ||
| Front disc brake pad*b (glazed) | ||
| Rear disc brake pad (glazed) | ||
| Front disc*a (scored) | ||
| Front disc*b (scored) | ||
| Rear disc (scored) | ||
| Vacuum leaks in booster system*c | ||
| Vacuum leaks in booster system*d | ||
| Noise from brakes | Front disc brake pad*a (cracked or distorted) | |
| Front disc brake pad*b (cracked or distorted) | ||
| Rear disc brake pad (cracked or distorted) | ||
| Front disc brake cylinder mounting bolt*a (loose) | ||
| Front disc brake cylinder mounting bolt*b (loose) | ||
| Rear disc brake cylinder mounting bolt (loose) | ||
| Front disc*a (scored) | ||
| Front disc*b (scored) | ||
| Rear disc (scored) | ||
| Front disc brake pad support plate*a (loose) | ||
| Front disc brake anti-rattle spring*b (loose) | ||
| Rear disc brake pad support plate (loose) | ||
| Front disc brake cylinder slide pin*a (worn) | ||
| Front disc brake anti-rattle with hole pin*b (worn) | ||
| Rear disc brake cylinder slide pin (worn) | ||
| Front disc brake pad*a (dirty) | ||
| Front disc brake pad*b (dirty) | ||
| Rear disc brake pad (dirty) | ||
| Front disc brake pad*a (glazed) | ||
| Front disc brake pad*b (glazed) | ||
| Rear disc brake pad (glazed) | ||
| Front brake anti-squeal shim*a (damaged) | ||
| Front brake anti-squeal shim*b (damaged) | ||
| Rear brake anti-squeal shim (damaged) |
*a: for 4GR-FSE
*b: for 2GR-FSE
*c: for LHD
*d: for RHD