Problem Symptoms Table
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 | See |
|---|---|---|
| Hard steering | Tires (Improperly inflated) | Refer to INSPECTION |
| Power steering fluid level (Low) | Refer to ON-VEHICLE INSPECTION | |
| Drive belt (Loose) | Refer to ON-VEHICLE INSPECTION | |
| Front wheel alignment (Incorrect) | Refer to ADJUSTMENT | |
| Steering system joints (Worn) | - | |
| Suspension arm ball joints (Worn) | Refer to INSPECTION | |
| Steering column (Binding) | - | |
| Power steering vane pump | Refer to INSPECTION | |
| Rack and pinion power steering gear | Refer to INSPECTION | |
| Poor return | Tires (Improperly inflated) | Refer to INSPECTION |
| Front wheel alignment (Incorrect) | Refer to ADJUSTMENT | |
| Steering column (Binding) | - | |
| Rack and pinion power steering gear | Refer to INSPECTION | |
| Excessive play | Steering system joints (Worn) | - |
| Suspension arm ball joints (Worn) | Refer to INSPECTION | |
| Intermediate shaft, Sliding yoke (Worn) | - | |
| Front wheel bearing (Worn) (for 2WD) | Refer to ON-VEHICLE INSPECTION | |
| Front wheel bearing (Worn) (for 4WD) | Refer to ON-VEHICLE INSPECTION | |
| Rack and pinion power steering gear | Refer to INSPECTION | |
| Abnormal noise | Power steering fluid level (Low) | Refer to ON-VEHICLE INSPECTION |
| Steering system joints (Worn) | - | |
| Power steering vane pump | Refer to INSPECTION | |
| Rack and pinion power steering gear | Refer to INSPECTION | |
| Power steering system does not operate | IG power source circuit | Refer to IG Power Source Circuit |
| VFC power steering solenoid circuit | Refer to DTC C1531: ECU Malfunction | |
| Power steering ECU communication circuit | Refer to DTC U0073: Control Module Communication Bus Off | |
| Vehicle stability control system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Steering angle sensor | Refer to REMOVAL | |
| SFI system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Power steering ECU | Refer to TERMINALS OF ECU | |
| When the vehicle is idling, steering effort is high (with the vehicle stopped) | Tire size and tire pressure | Refer to INSPECTION |
| Power steering fluid level and pressure | Refer to ON-VEHICLE INSPECTION | |
| Front wheel alignment | Refer to ADJUSTMENT | |
| IG power source circuit | Refer to IG Power Source Circuit | |
| VFC power steering solenoid circuit | Refer to DTC C1531: ECU Malfunction | |
| Power steering ECU communication circuit | Refer to DTC U0073: Control Module Communication Bus Off | |
| Steering angle sensor | Refer to REMOVAL | |
| Power steering ECU | Refer to TERMINALS OF ECU | |
| Even if vehicle speed increases, steering effort does not increase | VFC power steering solenoid circuit | Refer to DTC C1531: ECU Malfunction |
| Power steering ECU communication circuit | Refer to DTC U0073: Control Module Communication Bus Off | |
| Vehicle stability control system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Power steering ECU | Refer to TERMINALS OF ECU | |
| Power steering warning light is abnormal | Power steering warning light circuit | Refer to Power Steering Warning Light Circuit |