PROBLEM SYMPTOMS TABLE
HINT:
Symptom | Suspected Area | Link |
---|---|---|
Heavy steering | Front tires (improperly inflated, unevenly worn) |
|
Front wheel alignment (incorrect) |
| |
Front suspension (Lower ball joint) |
| |
Rack and pinion power steering gear assembly |
| |
Steering column assembly | *1 *2 | |
Battery and power source circuit | *3 *4 | |
Power source voltage of power steering ECU | *3 *4 | |
Power steering ECU (Rack and pinion power steering gear assembly) |
| |
Vehicle condition (Steering wheel is turned from left to right repeatedly with vehicle stopped or heavy load is continuously applied to vehicle) | *3 *4 | |
CAN communication system | *3 *4 | |
Steering effort differs between right and left or is uneven | Power steering motor (Rack and pinion power steering gear assembly) |
|
Torque sensor zero point calibration | *3 *4 | |
Front tires (improperly inflated, unevenly worn) |
| |
Front wheel alignment (incorrect) |
| |
Front suspension (Lower ball joint) |
| |
Rack and pinion power steering gear assembly |
| |
Steering column assembly | *1 *2 | |
Power steering ECU (Rack and pinion power steering gear assembly) |
| |
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) |
|
Front tires (improperly inflated, unevenly worn) |
| |
Front wheel alignment (incorrect) |
| |
Combination meter assembly |
| |
Rack and pinion power steering gear assembly |
| |
Steering column assembly | *1 *2 | |
Front suspension (Lower ball joint) |
| |
Skid control ECU (Brake actuator assembly) | *3 *4 | |
Speed sensor | *3 *4 | |
Torque sensor (Rack and pinion power steering gear assembly) |
| |
Power steering ECU (Rack and pinion power steering gear assembly) |
| |
CAN communication system | *3 *4 | |
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 |
|
Steering column assembly | *1 *2 | |
Steering intermediate shaft assembly | *1 *2 | |
Front suspension (Lower ball joint) |
| |
Friction sounds occur when turning steering wheel during low speed driving | Power steering motor (Rack and pinion power steering gear assembly) |
|
Steering column assembly | *1 *2 | |
Spiral cable with sensor sub-assembly |
| |
Steering column cover contacting steering wheel assembly | *1 *2 | |
High-pitched sound (squeaking) occurs when turning steering wheel slowly with vehicle stopped | Power steering motor (Rack and pinion power steering gear assembly) |
|
Steering wheel installation (incorrect) |
| |
Steering wheel vibrates and noise occurs when turning steering wheel from lock to lock | Power steering motor (Rack and pinion power steering gear assembly) |
|
Steering column assembly | *1 *2 | |
Steering wheel installation (incorrect) |
|
*1: for Manual Tilt and Manual Telescopic Steering Column
*2: for Power Tilt and Power Telescopic Steering Column
*3: for HV Model
*4: for Gasoline Model