Problem Symptoms Table [09/2014 - 10/2015]
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 | Reference |
|---|---|---|
| Steering is heavy | Front tires (Improperly inflated, unevenly worn) | Refer to INSPECTION [09/2014 - 10/2015] |
| Front wheel alignment (Incorrect) | Refer to ADJUSTMENT [09/2014 - 10/2015] | |
| Front suspension (Lower ball joint) (for 2WD) | Refer to INSPECTION [09/2014 - ] | |
| Front suspension (Lower ball joint) (for AWD) | Refer to INSPECTION [09/2014 - ] | |
| Power steering link assembly (Torque sensor, power steering motor) | Refer to INSPECTION [09/2014 - ] | |
| Steering column assembly | - | |
| Battery and power source circuit | Refer to ON-VEHICLE INSPECTION [09/2014 - 10/2015] | |
| Power source voltage of power steering ECU assembly | Refer to DATA LIST / ACTIVE TEST [09/2014 - 10/2015] | |
| 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 [09/2014 - 10/2015] | |
| CAN communication system (Engine speed) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] | |
| Power steering ECU assembly | Refer to TERMINALS OF ECU [09/2014 - 10/2015] | |
| Steering effort differs between right and left or is uneven | Motor rotation angle sensor value initialization and torque sensor zero point calibration incomplete | Refer to CALIBRATION [09/2014 - ] |
| Front tires (Improperly inflated, unevenly worn) | Refer to INSPECTION [09/2014 - 10/2015] | |
| Front wheel alignment (Incorrect) | Refer to ADJUSTMENT [09/2014 - 10/2015] | |
| Front suspension (Lower ball joint) (for 2WD) | Refer to INSPECTION [09/2014 - ] | |
| Front suspension (Lower ball joint) (for AWD) | Refer to INSPECTION [09/2014 - ] | |
| Power steering link assembly (Torque sensor, motor rotation angle sensor, power steering motor) | Refer to INSPECTION [09/2014 - ] | |
| Steering column assembly | - | |
| Power steering ECU assembly | Refer to TERMINALS OF ECU [09/2014 - 10/2015] | |
| While driving, steering effort does not change in accordance with vehicle speed, or steering wheel does not return to its centered position easily | Front suspension (Lower ball joint) (for 2WD) | Refer to INSPECTION [09/2014 - ] |
| Front suspension (Lower ball joint) (for AWD) | Refer to INSPECTION [09/2014 - ] | |
| Speed sensor | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] | |
| Skid control ECU | Refer to TERMINALS OF ECU [09/2014 - 10/2015] | |
| Power steering link assembly (Torque sensor, motor rotation angle sensor, power steering motor) | Refer to INSPECTION [09/2014 - ] | |
| CAN communication system (Vehicle speed) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] | |
| Power steering ECU assembly | Refer to REMOVAL [09/2014 - ] | |
| Knocking (or cranking) sound occurs when turning steering wheel back and forth while power steering is in operation | No. 2 steering intermediate shaft assembly | - |
| Steering sliding with shaft yoke sub-assembly (for 2WD) | - | |
| Power steering link assembly | - | |
| Friction sounds occur when turning steering wheel during low speed driving | Power steering link assembly (Power steering motor) | - |
| Steering column assembly | - | |
| High-pitched sound (squeaking) occurs when turning steering wheel slowly with vehicle stopped | Power steering link assembly (Power steering motor) | - |
| Steering wheel vibrates and noise occurs when turning steering wheel from lock to lock | Power steering link assembly (Power steering motor) | - |
| Steering column assembly | - | |
| Power steering warning light abnormal | Battery and power source circuit | Refer to ON-VEHICLE INSPECTION [09/2014 - 10/2015] |
| Power steering warning light circuit | Refer to Power Steering Warning Light Circuit [09/2014 - ] |