Problem Symptoms Table [06/2012 - ]
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 |
|---|---|---|
| Heavy steering | Front tires (improperly inflated, unevenly worn) | Refer to INSPECTION [06/2012 - ] |
| Front wheel alignment (incorrect) | Refer to ADJUSTMENT [06/2012 - ] | |
| Front suspension (lower ball joint) | Refer to INSPECTION [06/2012 - ] | |
| Electric power steering column sub-assembly | Refer to REMOVAL [06/2012 - ] | |
| Torque sensor (Electric power steering column sub-assembly) | - | |
| Power steering motor | - | |
| Speed sensor | Refer to DIAGNOSTIC TROUBLE CODE TABLE [06/2012 - ] | |
| Auxiliary battery and power source system | - | |
| Power steering ECU assembly power source voltage and relay | Refer to TERMINALS OF ECU [06/2012 - ] | |
| Power steering ECU assembly | Refer to REMOVAL [06/2012 - ] | |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2012 - ] | |
| Steering effort differs between turning right and left, or steering effort is uneven. | Calibration of torque sensor zero point is not completed | Refer to CALIBRATION [06/2012 - ] |
| Front tires (improperly inflated, unevenly worn) | Refer to INSPECTION [06/2012 - ] | |
| Front wheel alignment (incorrect) | Refer to ADJUSTMENT [06/2012 - ] | |
| Front suspension (lower ball joint) | Refer to INSPECTION [06/2012 - ] | |
| Steering gear assembly | Refer to INSPECTION [06/2012 - ] | |
| Torque sensor (Electric power steering column sub-assembly) | - | |
| Electric power steering column sub-assembly | Refer to REMOVAL [06/2012 - ] | |
| Power steering motor | - | |
| Power steering ECU assembly | Refer to REMOVAL [06/2012 - ] | |
| While driving, steering effort does not change in accordance with vehicle speed or the steering wheel does not return properly. | Front suspension (lower ball joint) | Refer to INSPECTION [06/2012 - ] |
| Speed sensor | Refer to DIAGNOSTIC TROUBLE CODE TABLE [06/2012 - ] | |
| Combination meter assembly | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2012 - ] | |
| Torque sensor (Electric power steering column sub-assembly) | - | |
| Power steering motor | - | |
| Power steering ECU assembly | Refer to REMOVAL [06/2012 - ] | |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2012 - ] | |
| A knocking (or clunking) sound occurs when turning the steering wheel back and forth while power steering is operating. | Front suspension (lower ball joint) | Refer to INSPECTION [06/2012 - ] |
| Steering intermediate shaft assembly | - | |
| Power steering ECU assembly | Refer to REMOVAL [06/2012 - ] | |
| Noise occurs when turning the steering wheel during low-speed driving. | Steering gear assembly | Refer to INSPECTION [06/2012 - ] |
| Electric power steering column sub-assembly | Refer to REMOVAL [06/2012 - ] | |
| Friction occurs when turning the steering wheel during low-speed driving. | Power steering motor | - |
| Electric power steering column sub-assembly | Refer to REMOVAL [06/2012 - ] | |
| A high-pitched sound (squeaking) occurs when turning the steering wheel slowly with the vehicle stopped. | Power steering motor | - |
| The steering wheel vibrates and noise occurs when turning the steering wheel from lock to lock with the vehicle stopped. | Steering gear assembly | Refer to INSPECTION [06/2012 - ] |
| Electric power steering column sub-assembly | Refer to REMOVAL [06/2012 - ] | |
| DTCs cannot be output (Terminals TC and CG of the DLC3 are connected). | TC and CG terminal circuit | Refer to TC and CG Terminal Circuit |
| IG power source circuit | Refer to DTC C1551: IG Power Supply Voltage | |
| Combination meter assembly | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2012 - ] | |
| Signal check cannot be performed (Terminals TS and CG of the DLC3 are connected). | TS and CG terminal circuit | Refer to TS and CG Terminal Circuit |
| Power steering ECU assembly | Refer to REMOVAL [06/2012 - ] | |
| Drive mode does not change. | Drive mode switch circuit | Refer to Drive Mode Switch Circuit |
| EPS warning light remains on. | EPS warning light circuit | Refer to EPS Warning Light Circuit |