Problem Symptoms Table
Use the table below to help determine the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.
BRAKE SYSTEM
BRAKE SYSTEM SYMPTOMS REFERENCE
| Symptom | Suspected Area | See |
|---|---|---|
| Low pedal or spongy pedal | 1. Fluid leaks in brake system (2GR-FSE) | - |
| 2. Fluid leaks in brake system (3U2-FE) | - | |
| 3. Air in brake system (2GR-FSE) | BRAKE FLUID (FOR 2GR-FSE) | |
| 4. Air in brake system (3UZ-FE) | BRAKE FLUID (FOR 3UZ-FE) | |
| 5. Piston seals (Worn or damaged) (FRONT) | FRONT BRAKE | |
| 6. Piston seals (Worn or damaged) (REAR) | REAR BRAKE | |
| 7. Master cylinder (Faulty) (2GR-FSE) | BRAKE MASTER CYLINDER (FOR 2GR-FSE) | |
| 8. Master cylinder (Faulty) (3UZ-FE) | BRAKE MASTER CYLINDER (FOR 3UZ-FE) | |
| 9. Booster push rod (Out of adjustment) (2GR-FSE) | BRAKE MASTER CYLINDER (FOR 2GR-FSE) | |
| Brake drag | 1. Brake pedal freeplay (Minimal) | BRAKE PEDAL |
| 2. Parking brake pedal travel (Out of adjustment) | PARKING BRAKE SYSTEM | |
| 3. Parking brake cable (Sticking) | REMOVAL | |
| 4. Parking brake shoe clearance (Out of adjustment) | INSTALLATION | |
| 5. Pad (Cracked or distorted) (FRONT) | FRONT BRAKE | |
| 6. Pad (Cracked or distorted) (REAR) | REAR BRAKE | |
| 7. Piston (Stuck) (FRONT) | FRONT BRAKE | |
| 8. Piston (Stuck) (REAR) | REAR BRAKE | |
| 9. Piston (Frozen) (FRONT) | FRONT BRAKE | |
| 10. Piston (Frozen) (REAR) | REAR BRAKE | |
| 11. Booster push rod (Out of adjustment) (2GR-FSE) | BRAKE MASTER CYLINDER (FOR 2GR-FSE) | |
| 12. Vacuum leaks in booster systems (2GR-FSE) | BRAKE BOOSTER | |
| 13. Master cylinder (Faulty) (2GR-FSE) | BRAKE MASTER CYLINDER (FOR 2GR-FSE) | |
| 14. Master cylinder (Faulty) (3UZ-FE) | BRAKE MASTER CYLINDER (FOR 3UZ-FE) | |
| Brake pull | 1. Piston (Stuck) (FRONT) | FRONT BRAKE |
| 2. Piston (Stuck) (REAR) | REAR BRAKE | |
| 3. Pad (Oily) (FRONT) | FRONT BRAKE | |
| 4. Pad (Oily) (REAR) | REAR BRAKE | |
| 5. Piston (Frozen) (FRONT) | FRONT BRAKE | |
| 6. Piston (Frozen) (REAR) | REAR BRAKE | |
| 7. Disc (Scored) (FRONT) | FRONT BRAKE | |
| 8. Disc (Scored) (REAR) | REAR BRAKE | |
| 9. Pad (Cracked or distorted) (FRONT) | FRONT BRAKE | |
| 10. Pad (Cracked or distorted) (REAR) | REAR BRAKE | |
| Hard pedal but brake inefficient | 1. Fluid leaks in brake system (2GR-FSE) | - |
| 2. Fluid leaks in brake system (3UZ-FE) | - | |
| 3. Air in brake system (2GR-FSE) | BRAKE FLUID (FOR 2GR-FSE) | |
| 4. Air in brake system (3UZ-FE) | BRAKE FLUID (FOR 3UZ-FE) | |
| 5. Pad (Worn) (FRONT) | FRONT BRAKE | |
| 6. Pad (Worn) (REAR) | REAR BRAKE | |
| 7. Pad (Cracked or distorted) (FRONT) | FRONT BRAKE | |
| 8. Pad (Cracked or distorted) (REAR) | REAR BRAKE | |
| 9. Pad (Oily) (FRONT) | FRONT BRAKE | |
| 10. Pad (Oily) (REAR) | REAR BRAKE | |
| 11. Pad (Glazed) (FRONT) | FRONT BRAKE | |
| 12. Pad (Glazed) (REAR) | REAR BRAKE | |
| 13. Disc (Scored) (FRONT) | FRONT BRAKE | |
| 14. Disc (Scored) (REAR) | REAR BRAKE | |
| 15. Booster push rod (Out of adjustment) (2GR-FSE) | BRAKE MASTER CYLINDER (FOR 2GR-FSE) | |
| 16. Vacuum leaks in booster system (2GR-FSE) | ON-VEHICLE INSPECTION | |
| Noise from brakes | 1. Pad (Cracked or distorted) (FRONT) | FRONT BRAKE |
| 2. Pad (Cracked or distorted) (REAR) | REAR BRAKE | |
| 3. Install bolt (Loose) (FRONT) | INSTALLATION | |
| 4. Install bolt (Loose) (REAR) | REAR BRAKE | |
| 5. Disc (Scored) (FRONT) | FRONT BRAKE | |
| 6. Disc (Scored) (REAR) | REAR BRAKE | |
| 7. Pad guide pin (Worn) (FRONT) | FRONT BRAKE | |
| 8. Pad guide pin (Worn) (REAR) | REAR BRAKE | |
| 9. Pad (Dirty) (FRONT) | FRONT BRAKE | |
| 10. Pad (Dirty) (REAR) | REAR BRAKE | |
| 11. Pad (Glazed) (FRONT) | FRONT BRAKE | |
| 12. Pad (Glazed) (REAR) | REAR BRAKE | |
| 13. Anti-squeal shim (Damaged) (FRONT) | FRONT BRAKE | |
| 14. Anti-squeal shim (Damaged) (REAR) | REAR BRAKE |