Problem Symptoms Table [12/2019 - 10/2022]
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.
STEERING SYSTEM
| Symptom | Suspected Area | Link |
|---|---|---|
| Heavy steering | Front tires (improperly inflated, unevenly worn) | Refer to INSPECTION [12/2019 - ] |
| Front wheel alignment (incorrect) | Refer to ADJUSTMENT [12/2019 - 09/2020] , or refer to ADJUSTMENT [09/2020 - 10/2022] | |
| Front suspension (Lower ball joint) | Refer to INSPECTION [12/2019 - ] | |
| Rack and pinion power steering gear assembly | Refer to REMOVAL [12/2019 - 10/2022] | |
| Steering column assembly | Refer to REMOVAL [12/2019 - 10/2021] , or refer to REMOVAL [10/2021 - 10/2022] | |
| Battery and power source circuit | Refer to ON-VEHICLE INSPECTION [12/2019 - 11/2023]
*3 Refer to ON-VEHICLE INSPECTION [12/2019 - 10/2022] *4 Refer to ON-VEHICLE INSPECTION [12/2019 - 10/2022] *5 |
|
| Power source voltage of power steering ECU | Refer to TERMINALS OF ECU [12/2019 - ] | |
| Power steering ECU (Rack and pinion power steering gear assembly) | Refer to REMOVAL [12/2019 - 10/2022] | |
| 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 [12/2019 - 11/2023] | |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2021]
, or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2021 - 10/2022]
*1 Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2022] *2 |
|
| Steering effort differs between right and left or is uneven | Power steering motor (Rack and pinion power steering gear assembly) | Refer to REMOVAL [12/2019 - 10/2022] |
| Torque sensor zero point calibration | Refer to CALIBRATION [12/2019 - 11/2023] | |
| Front tires (improperly inflated, unevenly worn) | Refer to INSPECTION [12/2019 - ] | |
| Front wheel alignment (incorrect) | Refer to ADJUSTMENT [12/2019 - 09/2020] , or refer to ADJUSTMENT [09/2020 - 10/2022] | |
| Front suspension (Lower ball joint) | Refer to INSPECTION [12/2019 - ] | |
| Rack and pinion power steering gear assembly | Refer to REMOVAL [12/2019 - 10/2022] | |
| Steering column assembly | Refer to REMOVAL [12/2019 - 10/2021] , or refer to REMOVAL [10/2021 - 10/2022] | |
| Power steering ECU (Rack and pinion power steering gear assembly) | Refer to REMOVAL [12/2019 - 10/2022] | |
| While driving, steering effort does not change in accordance with vehicle speed, or steering wheel does not return to its centered position easily | Power steering motor (Rack and pinion power steering gear assembly) | Refer to REMOVAL [12/2019 - 10/2022] |
| Front tires (improperly inflated, unevenly worn) | Refer to INSPECTION [12/2019 - ] | |
| Front wheel alignment (incorrect) | Refer to ADJUSTMENT [12/2019 - 09/2020] , or refer to ADJUSTMENT [09/2020 - 10/2022] | |
| Combination meter assembly | Refer to REMOVAL [12/2019 - ] | |
| Rack and pinion power steering gear assembly | Refer to REMOVAL [12/2019 - 10/2022] | |
| Steering column assembly | Refer to REMOVAL [12/2019 - 10/2021] , or refer to REMOVAL [10/2021 - 10/2022] | |
| Front suspension (Lower ball joint) | Refer to INSPECTION [12/2019 - ] | |
| No. 2 skid control ECU (Brake actuator assembly)*1 | Refer to REMOVAL [12/2019 - 10/2022] | |
| Skid control ECU (Brake actuator assembly)*2 | Refer to REMOVAL [12/2019 - 10/2022] | |
| Speed sensor | Refer to TEST MODE PROCEDURE [12/2019 - 11/2023]
*1 Refer to TEST MODE PROCEDURE [12/2019 - 11/2023] *2 |
|
| Torque sensor (Rack and pinion power steering gear assembly) | Refer to REMOVAL [12/2019 - 10/2022] | |
| Power steering ECU (Rack and pinion power steering gear assembly) | Refer to REMOVAL [12/2019 - 10/2022] | |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2021]
, or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2021 - 10/2022]
*1 Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2022] *2 |
|
| Knocking or clunking sound occurs when turning steering wheel back and forth while power steering is in operation | Rack and pinion power steering gear assembly | Refer to REMOVAL [12/2019 - 10/2022] |
| Steering column assembly | Refer to REMOVAL [12/2019 - 10/2021] , or refer to REMOVAL [10/2021 - 10/2022] | |
| Steering intermediate shaft assembly | Refer to REMOVAL [12/2019 - 10/2021] , or refer to REMOVAL [10/2021 - 10/2022] | |
| Front suspension (Lower ball joint) | Refer to INSPECTION [12/2019 - ] | |
| Friction sounds occur when turning steering wheel during low speed driving | Power steering motor (Rack and pinion power steering gear assembly) | Refer to REMOVAL [12/2019 - 10/2022] |
| Steering column assembly | Refer to REMOVAL [12/2019 - 10/2021] , or refer to REMOVAL [10/2021 - 10/2022] | |
| Spiral cable with sensor sub-assembly | Refer to REMOVAL [12/2019 - 10/2022] | |
| Steering column cover contacting steering wheel assembly | Refer to REMOVAL [12/2019 - 10/2021] , or refer to REMOVAL [10/2021 - 10/2022] | |
| 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 [12/2019 - 10/2022] |
| Steering wheel installation (incorrect) | Refer to INSTALLATION [12/2019 - ] | |
| 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 [12/2019 - 10/2022] |
| Steering column assembly | Refer to REMOVAL [12/2019 - 10/2021] , or refer to REMOVAL [10/2021 - 10/2022] | |
| Steering wheel installation (incorrect) | Refer to INSTALLATION [12/2019 - ] |
*1: for HV Model
*2: for Gasoline Model
*3: for A25A-FXS
*4: for 2GR-FKS without Stop And Start System
*5: for 2GR-FKS with Stop And Start System