| Heavy steering |
Front tires (improperly inflated, unevenly worn) |
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| Front wheel alignment (incorrect) |
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| Front suspension (Lower ball joint) |
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| Rack and pinion power steering gear assembly |
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| Toruque sensor (Rack and pinion power steering gear assembly) |
| Power steering motor (Rack and pinion power steering gear assembly) |
| Steering column assembly |
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| Battery and power source circuit |
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| Power source voltage of power steering ECU (Rack and pinion power steering gear assembly) |
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| CAN communication system |
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| Vehicle condition (Steering wheel is turned from left to right repeatedly with vehicle stopped or heavy load is continuously applied to vehicle) |
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| Steering effort differs between right and left or is uneven |
Rotation angle sensor initialization and torque sensor zero point calibration incomplete |
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| Front tires (improperly inflated, unevenly worn) |
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| Front wheel alignment (incorrect) |
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| Front suspension (Lower ball joint) |
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| Rack and pinion power steering gear assembly |
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| Toruque sensor (Rack and pinion power steering gear assembly) |
| Steering column assembly |
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| Power steering ECU (Rack and pinion power steering gear assembly) |
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| 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 |
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| Speed sensor |
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| Toruque sensor (Rack and pinion power steering gear assembly) |
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| Power steering motor (Rack and pinion power steering gear assembly) |
| Power steering ECU (Rack and pinion power steering gear assembly) |
| CAN communication system |
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| Friction sounds occur when turning steering wheel during low speed driving |
Power steering motor (Rack and pinion power steering gear assembly) |
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| Steering column assembly |
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| Spiral with sensor cable sub-assembly |
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| Steering column cover contacting steering wheel assembly |
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| High-pitched sound (squeaking) occurs when turning steering wheel slowly with vehicle stopped |
Power steering motor (Rack and pinion power steering gear assembly) |
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| Steering wheel installation (incorrect) |
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| Steering wheel vibrates and noise occurs when turning steering wheel from lock to lock |
Power steering motor (Rack and pinion power steering gear assembly) |
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| Steering column assembly |
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| Steering wheel installation (incorrect) |
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| EPS warning light remains on |
EPS warning light circuit |
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