Tech Tips
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.
| Symptom | Suspected Area | See page |
|---|---|---|
| Heavy steering | Front tires (Improperly inflated, unevenly worn) | |
| Front wheel alignment (Incorrect) | ||
| Steering system joints (Worn) | - | |
| Steering column assembly | ||
| Torque sensor (Built into steering column assembly) | - | |
| Power steering motor (Built into steering column assembly) | - | |
| Speed sensor | ||
| Battery and power source system | - | |
| Power steering ECU assembly power source voltage and relay | ||
| Rack and pinion power steering gear assembly | ||
| Power steering ECU assembly | ||
| Skid control ECU (Brake actuator assembly) | - | |
| Poor return | Front tires (Improperly inflated, unevenly worn) | |
| Front wheel alignment (Incorrect) | ||
| Steering column assembly | ||
| Rack and pinion power steering gear assembly | ||
| Power steering ECU assembly | ||
| Excessive free play | Steering system joints (Worn) | - |
| Front suspension (Lower ball joint) | ||
| Intermediate shaft, universal joint, sliding yoke (Worn) | - | |
| Front axle hub (Hub bearing) | ||
| Rack and pinion power steering gear assembly | ||
| A knocking (or clunking) sound occurs when turning the steering wheel back and forth while power steering is operating. | Front suspension (Lower ball joint) | |
| Steering intermediate shaft | - | |
| Power steering ECU | ||
| Friction occurs when turning the steering wheel during low-speed driving. | Steering column assembly | |
| Power steering motor (Built into steering column assembly) | - | |
| A high-pitched sound (squeaking) occurs when turning the steering wheel slowly with the vehicle stopped. | Steering column assembly | |
| Power steering motor (Built into steering column assembly) | - | |
| Steering wheel vibrates and noise occurs when turning the steering wheel with the vehicle stopped. | Steering column assembly | |
| Power steering motor (Built into steering column assembly) | - |