Problem Symptoms Table
for Hatchback
PROBLEM SYMPTOMS TABLE - FOR HATCHBACK
| Symptom | Suspected area | Reference |
|---|---|---|
| Heavy steering | Front tires (improperly inflated, unevenly worn) | INSPECTION |
| Front wheel alignment (incorrect) | ADJUSTMENT | |
| Front suspension (Lower ball joint) | REMOVAL | |
| Steering gear assembly | REMOVAL | |
| Power steering motor | REMOVAL | |
| Battery and power source system | - | |
| Power source voltage of power steering ECU | HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS | |
| Power steering ECU | REMOVAL | |
| Steering effort differs between turning right and left or uneven | Steering center point (zero point) not recorded completely | CALIBRATION |
| Front tires (improperly inflated, unevenly worn) | INSPECTION | |
| Front wheel alignment (incorrect) | ADJUSTMENT | |
| Front suspension (Lower ball joint) | REMOVAL | |
| Steering gear assembly | REMOVAL | |
| Torque sensor (built into steering column) | REMOVAL | |
| Steering column assembly | REMOVAL | |
| Power steering motor | REMOVAL | |
| Power steering ECU | REMOVAL | |
| While driving, steering effort does not change in accordance with vehicle speed or steering wheel does not return properly | Front suspension (Lower ball joint) | REMOVAL |
| Speed sensor (w/ ABS) | TEST MODE PROCEDURE | |
| Skid control ECU (ABS ECU) | REMOVAL | |
| Combination meter (w/o ABS) | REMOVAL | |
| Torque sensor (built into steering column) | REMOVAL | |
| Power steering motor | REMOVAL | |
| Power steering ECU | REMOVAL | |
| Controlling CAN communication system | HOW TO PROCEED WITH TROUBLESHOOTING | |
| Friction occurs when turning steering wheel during low speed driving | Power steering motor | REMOVAL |
| Steering column assembly | REMOVAL | |
| High-pitched sound (squeaking) occurs when turning steering wheel slowly when vehicle stopped | Power steering motor | REMOVAL |
| Steering wheel vibrates and noise occurs when turning steering wheel with vehicle stopped | Power steering motor | REMOVAL |
| Steering column assembly | REMOVAL | |
| P/S warning always indicated on combination meter | Power source voltage of power steering ECU | HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS |
| Combination meter | REMOVAL | |
| Power steering ECU | REMOVAL |
for Sedan
PROBLEM SYMPTOMS TABLE - FOR SEDAN
| Symptom | Suspected area | Reference |
|---|---|---|
| Heavy steering | Front tires (improperly inflated, unevenly worn) | INSPECTION |
| Front wheel alignment (incorrect) | ADJUSTMENT | |
| Front suspension (Lower ball joint) | REMOVAL | |
| Steering gear assembly | REMOVAL | |
| Power steering motor | REMOVAL | |
| Battery and power source system | - | |
| Power source voltage of power steering ECU | HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS | |
| Power Steering ECU | REMOVAL | |
| Steering effort differs between turning right and left or uneven | Steering center point (zero point) not recorded completely | SYSTEM DESCRIPTION |
| Front tires (improperly inflated, unevenly worn) | INSPECTION | |
| Front wheel alignment (incorrect) | ADJUSTMENT | |
| Front suspension (Lower ball joint) | REMOVAL | |
| Steering Gear Assembly | REMOVAL | |
| Torque sensor (built into steering column) | REMOVAL | |
| Steering column assembly | REMOVAL | |
| Power steering motor | REMOVAL | |
| Power Steering ECU | REMOVAL | |
| While driving, steering effort does not change in accordance with vehicle speed or steering wheel does not return properly | Front suspension (Lower ball joint) | REMOVAL |
| Speed sensor (w/ ABS) | TEST MODE PROCEDURE | |
| Skid control ECU (ABS ECU) | REMOVAL | |
| Combination meter (w/o ABS) | REMOVAL | |
| Torque sensor (built into steering column) | REMOVAL | |
| Power steering motor | REMOVAL | |
| Power Steering ECU | REMOVAL | |
| Controlling CAN communication system | HOW TO PROCEED WITH TROUBLESHOOTING | |
| Friction occurs when turning steering wheel during low speed driving | Power steering motor | REMOVAL |
| Steering column assembly | REMOVAL | |
| High-pitched sound (squeaking) occurs when turning steering wheel slowly when vehicle stopped | Power steering motor | REMOVAL |
| Steering wheel vibrates and noise occurs when turning steering wheel with vehicle stopped | Power steering motor | REMOVAL |
| Steering column assembly | REMOVAL | |
| P/S warning always indicated on combination meter | Power source voltage of power steering ECU | HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS |
| Combination meter | REMOVAL | |
| Power Steering ECU | REMOVAL |