Problem Symptoms Table [08/2012 - ]
HINT:
Use the table below to help determine the cause of the problem. The numbers indicate likely causes of the problem in order. Check each part in order. If necessary, repair or replace the faulty parts.
POWER STEERING SYSTEM
| Symptom | Suspected Area | See Service Information |
|---|---|---|
| Steering is heavy. | 1. Front tires (Improperly inflated, unevenly worn) | Refer to INSPECTION [08/2012 - ] |
| 2. Front wheel alignment (Incorrect) | Refer to ADJUSTMENT [08/2012 - ] | |
| 3. Front suspension (Lower ball joint) | Refer to INSPECTION [08/2012 - ] | |
| 4. Steering column assembly (for Power Tilt and Power Telescopic) | Refer to REMOVAL [08/2012 - ] | |
| 5. Steering column assembly (for Manual Tilt and Manual Telescopic) | Refer to REMOVAL [08/2012 - ] | |
| 6. Torque sensor (Built into steering gear assembly) | - | |
| 7. Power steering motor | - | |
| 8. Speed sensor | - | |
| 9. Skid control ECU | - | |
| 10. Battery and power source system | - | |
| 11. Power steering ECU power source voltage and relay | - | |
| 12. Power steering ECU | - | |
| Steering effort differs between right and left or is uneven. | 1. Calibration of turning angle sensor output and torque sensor zero point is not completed | Refer to CALIBRATION [08/2012 - ] |
| 2. Front tires (Improperly inflated, unevenly worn) | Refer to INSPECTION [08/2012 - ] | |
| 3. Front wheel alignment (Incorrect) | Refer to ADJUSTMENT [08/2012 - ] | |
| 4. Front suspension (Lower ball joint) | Refer to INSPECTION [08/2012 - ] | |
| 5. Power steering gear (for 2WD) | Refer to REMOVAL [08/2012 - ] | |
| 6. Power steering gear (for 4WD) | Refer to REMOVAL [08/2012 - ] | |
| 7. Torque sensor (Built into steering link assembly) | - | |
| 8. Steering column assembly (for Power Tilt and Power Telescopic) | Refer to REMOVAL [08/2012 - ] | |
| 9. Steering column assembly (for Manual Tilt and Manual Telescopic) | Refer to REMOVAL [08/2012 - ] | |
| 10. Power steering motor | - | |
| 11. Power steering ECU | - | |
| While driving, steering effort does not change in accordance with vehicle speed or the steering wheel does not return properly. | 1. Front suspension (Lower ball joint) | Refer to INSPECTION [08/2012 - ] |
| 2. Speed sensor | - | |
| 3. Skid control ECU | - | |
| 4. Combination meter | - | |
| 5. Engine speed detection circuit | - | |
| 6. Torque sensor (Built into steering gear assembly) | - | |
| 7. Power steering motor | - | |
| 8. Power steering ECU | - | |
| A knocking (or cranking) sound occurs when turning the steering wheel back and forth while power steering is in operation. | 1. Front suspension (Lower ball joint) | Refer to INSPECTION [08/2012 - ] |
| 2. Steering intermediate shaft | - | |
| 3. Power steering gear (for 2WD) | Refer to REMOVAL [08/2012 - ] | |
| 4. Power steering gear (for 4WD) | Refer to REMOVAL [08/2012 - ] | |
| Noise occurs when turning the steering wheel during low speed driving. | 1. Power steering gear (for 2WD) | Refer to REMOVAL [08/2012 - ] |
| 2. Power steering gear (for 4WD) | Refer to REMOVAL [08/2012 - ] | |
| 3. Steering column assembly (for Power Tilt and Power Telescopic) | Refer to REMOVAL [08/2012 - ] | |
| 4. Steering column assembly (for Manual Tilt and Manual Telescopic) | Refer to REMOVAL [08/2012 - ] | |
| A high-pitched sound (squeaking) occurs when turning the steering wheel slowly with the vehicle stopped. | Power steering motor | - |
| The steering wheel vibrates and noise occurs when turning the steering wheel from lock to lock. | 1. Power steering gear (for 2WD) | Refer to REMOVAL [08/2012 - ] |
| 2. Power steering gear (for 4WD) | Refer to REMOVAL [08/2012 - ] | |
| 3. Steering column assembly (for Power Tilt and Power Telescopic) | Refer to REMOVAL [08/2012 - ] | |
| 4. Steering column assembly (for Manual Tilt and Manual Telescopic) | Refer to REMOVAL [08/2012 - ] |