Steering. Lexus Is250, Is220D. Gse20 Ale20
Power Steering. Lexus Is250, Is220D. Gse20 Ale20
Electronic Power Steering System -- Problem Symptoms Table |
| Symptom | Suspected area | See page |
| Steering is heavy. | 1. Front tires (improperly inflated, unevenly worn) | Click here |
| 2. Front wheel alignment (Incorrect) | Click here | |
| 3. Front suspension | Click here | |
| 4. Power steering gear assembly | Click here | |
| 5. Steering column assembly (Manual tilt) | Click here | |
| 6. Steering column assembly (Power tilt and Power telescopic) | Click here | |
| 7. Battery and power source system | - | |
| 8. Power source voltage of power steering ECU assembly | Click here | |
| 9. Power steering ECU assembly | Click here | |
| 10. Vehicle condition (The steering wheel is turned from left to right repeatedly with the vehicle stopped or a heavy load is continuously applied to the vehicle) | - | |
| Steering effort differs between right and left, or is uneven. | 1. Power steering ECU assembly (Steering center point is not recorded correctly) | Click here |
| 2. Front tires (improperly inflated, unevenly worn) | Click here | |
| 3. Front wheel alignment (Incorrect) | Click here | |
| 4. Front suspension | Click here | |
| 5. Power steering gear assembly | Click here | |
| 6. Steering column assembly (Manual tilt) | Click here | |
| 7 Steering column assembly (Power tilt and Power telescopic) | Click here | |
| 8. Power steering ECU assembly | Click here | |
| While driving, steering effort does not change in accordance with vehicle speed, or the steering wheel does not return to its centered position easily. | 1. Speed sensor (Front) | Click here |
| 2. Speed sensor (Rear) | Click here | |
| 3. Skid control ECU (without VDIM) | Click here | |
| 4. Skid control ECU (with VDIM) | Click here | |
| 5. Power steering gear assembly | Click here | |
| 6. Power steering ECU assembly | Click here | |
| Friction sounds occur when turning the steering wheel during low speed driving. | 1. Power steering gear assembly | Click here |
| 2. Power steering ECU assembly | Click here | |
| High-pitched sounds (squeaking) occur when turning the steering wheel slowly with the vehicle stepped. | 1. Power steering gear assembly | Click here |
| The steering wheel vibrates and noise occurs when turning the steering wheel with the vehicle stopped. | 1. Power steering gear assembly | Click here |
| 2. Steering column assembly (Manual tilt) | Click here | |
| 3 Steering column assembly (Power tilt and Power telescopic) | Click here | |
| PS warning light remains on. | PS warning light remains on | Click here |
| PS warning light does not come on. | PS warning light does not come on | Click here |