Problem Symptoms Table [06/2016 - ]
HINT:
- 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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
POWER STEERING SYSTEM
| Symptom | Suspected Area | see |
|---|---|---|
| Steering is heavy. | Front tires (Improperly inflated, unevenly worn) | Refer to INSPECTION [06/2016 - 07/2018] Refer to INSPECTION [07/2018 - ] |
| Front wheel alignment (Incorrect) | Refer to ADJUSTMENT [06/2016 - 07/2018] Refer to ADJUSTMENT [07/2018 - ] | |
| Front suspension (Lower ball joint) | Refer to INSPECTION [06/2016 - ] | |
| Rack and pinion power steering gear assembly | Refer to INSPECTION [06/2016 - ] | |
| Steering column assembly | Refer to REMOVAL [06/2016 - 03/2017] Refer to REMOVAL [03/2017 - ] | |
| Torque sensor (Built into steering column assembly) | - | |
| Power steering motor (Built into steering column assembly) | - | |
| Speed sensor | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2016 - ] | |
| Skid control ECU | Refer to TERMINALS OF ECU [06/2016 - ] | |
| Battery and power source system | Refer to ON-VEHICLE INSPECTION [06/2016 - ] | |
| Power steering ECU power supply voltage and relay | Refer to DATA LIST / ACTIVE TEST [06/2016 - ] | |
| Power steering ECU assembly | Refer to TERMINALS OF ECU [06/2016 - ] | |
| Steering effort differs between right and left or is uneven. | Calibration of rotation angle sensor output and torque sensor | Refer to CALIBRATION [06/2016 - ] |
| Front tires (Improperly inflated, unevenly worn) | Refer to INSPECTION [06/2016 - 07/2018] Refer to INSPECTION [07/2018 - ] | |
| Front wheel alignment (Incorrect) | Refer to ADJUSTMENT [06/2016 - 07/2018] Refer to ADJUSTMENT [07/2018 - ] | |
| Front suspension (Lower ball joint) | Refer to INSPECTION [06/2016 - ] | |
| Rack and pinion power steering gear assembly | Refer to INSPECTION [06/2016 - ] | |
| Torque sensor (Built into steering column assembly) | - | |
| Steering column assembly | Refer to REMOVAL [06/2016 - 03/2017] Refer to REMOVAL [03/2017 - ] | |
| Power steering motor (Built into steering column assembly) | - | |
| Power steering ECU assembly | Refer to TERMINALS OF ECU [06/2016 - ] | |
| While driving, steering effort does not change in accordance with vehicle speed or the steering wheel does not return properly. | Front suspension (Lower ball joint) | Refer to INSPECTION [06/2016 - ] |
| Speed sensor | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2016 - ] | |
| Skid control ECU | Refer to TERMINALS OF ECU [06/2016 - ] | |
| Torque sensor (Built into steering column assembly) | - | |
| Power steering motor (Built into steering column assembly) | - | |
| Rack and pinion power steering gear assembly | Refer to INSPECTION [06/2016 - ] | |
| Power steering ECU assembly | Refer to TERMINALS OF ECU [06/2016 - ] | |
| A knocking (or cranking) sound occurs when turning the steering wheel while power steering operating. | Front suspension (Lower ball joint) | Refer to INSPECTION [06/2016 - ] |
| Steering intermediate shaft | - | |
| Rack and pinion power steering gear assembly | Refer to INSPECTION [06/2016 - ] | |
| Noise occurs when turning the steering wheel during low speed driving. | Power steering motor (Built into steering column assembly) | - |
| Rack and pinion power steering gear assembly | Refer to INSPECTION [06/2016 - ] | |
| Steering column assembly | Refer to REMOVAL [06/2016 - 03/2017] Refer to REMOVAL [03/2017 - ] | |
| Steering sensor | - | |
| Power steering ECU assembly | Refer to TERMINALS OF ECU [06/2016 - ] | |
| High-pitched sounds (squeaking) occur when turning the steering wheel slowly with the vehicle stopped. | Rack and pinion power steering gear assembly | Refer to INSPECTION [06/2016 - ] |
| Power steering motor (Built into steering column assembly) | - | |
| The steering wheel vibrates and noise occurs when turning the steering wheel from lock to lock. | Rack and pinion power steering gear assembly | Refer to INSPECTION [06/2016 - ] |
| Power steering motor (Built into steering column assembly) | - | |
| Steering column assembly | Refer to REMOVAL [06/2016 - 03/2017] Refer to REMOVAL [03/2017 - ] | |
| EPS warning light remains on. | EPS warning light circuit | Refer to EPS Warning Light Circuit [06/2016 - ] |