Problem Symptoms Table [07/2020 - ]
POWER STEERING SYSTEM
| Symptom | Suspected Area | Link |
|---|---|---|
| Heavy steering | Front tires (improperly inflated, unevenly worn) | Refer to INSPECTION [07/2020 - 05/2023] , or refer to INSPECTION [05/2023 - ] |
| Front wheel alignment (incorrect) | Refer to ADJUSTMENT [07/2020 - 05/2023] , or refer to ADJUSTMENT [05/2023 - ] | |
| Front suspension (lower ball joint) | Refer to ON-VEHICLE INSPECTION [07/2020 - ] | |
| Rack and pinion power steering gear assembly | Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ] | |
| Torque sensor (Rack and pinion power steering gear assembly) | ||
| Power steering motor (Rack and pinion power steering gear assembly) | ||
| Steering column assembly | Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ] | |
| Battery and power source circuit | Refer to ON-VEHICLE INSPECTION [07/2020 - 05/2023] , or refer to ON-VEHICLE INSPECTION [05/2023 - ] | |
| Power source voltage of power steering ECU (Rack and pinion power steering gear assembly) | Refer to TERMINALS OF ECU [07/2020 - ] | |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - 05/2023] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [05/2023 - ] | |
| Vehicle condition (Steering wheel is turned from left to right repeatedly with vehicle stopped or heavy load is continuously applied to vehicle) | Refer to DATA LIST / ACTIVE TEST [07/2020 - ] | |
| Steering effort differs between right and left or is uneven | Rotation angle sensor initialization and torque sensor zero point calibration incomplete | Refer to CALIBRATION [07/2020 - ] |
| Front tires (improperly inflated, unevenly worn) | Refer to INSPECTION [07/2020 - 05/2023] , or refer to INSPECTION [05/2023 - ] | |
| Front wheel alignment (incorrect) | Refer to ADJUSTMENT [07/2020 - 05/2023] , or refer to ADJUSTMENT [05/2023 - ] | |
| Front suspension (lower ball joint) | Refer to ON-VEHICLE INSPECTION [07/2020 - ] | |
| Rack and pinion power steering gear assembly | Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ] | |
| Torque sensor (Rack and pinion power steering gear assembly) | ||
| Steering column assembly | Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ] | |
| Power steering ECU (Rack and pinion power steering gear assembly) | Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ] | |
| While driving, steering effort does not change in accordance with vehicle speed, or steering wheel does not return to its centered position easily | Skid control ECU assembly | Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ] |
| Speed sensor | Refer to DTC CHECK / CLEAR [07/2020 - ] | |
| Torque sensor (Rack and pinion power steering gear assembly) | Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ] | |
| Power steering motor (Rack and pinion power steering gear assembly) | ||
| Power steering ECU (Rack and pinion power steering gear assembly) | ||
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - 05/2023] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [05/2023 - ] | |
| Friction sounds occur when turning steering wheel during low speed driving | Power steering motor (Rack and pinion power steering gear assembly) | Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ] |
| Steering column assembly | Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ] | |
| Spiral cable sub-assembly | Refer to INSPECTION [07/2020 - ] | |
| Steering column cover contacting steering wheel assembly | Refer to INSTALLATION [07/2020 - ] | |
| High-pitched sound (squeaking) occurs when turning steering wheel slowly with vehicle stopped | Power steering motor (Rack and pinion power steering gear assembly) | Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ] |
| Steering wheel installation (incorrect) | Refer to INSTALLATION [07/2020 - ] | |
| Steering wheel vibrates and noise occurs when turning steering wheel from lock to lock | Power steering motor (Rack and pinion power steering gear assembly) | Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ] |
| Steering column assembly | Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ] | |
| Steering wheel installation (incorrect) | Refer to INSTALLATION [07/2020 - ] | |
| EPS warning light remains on | EPS warning light circuit | Refer to EPS Warning Light Circuit [07/2020 - ] |