Tech Tips
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.
| Symptom | Suspected Area | See page |
|---|---|---|
| Hard steering | Tires (Improperly inflated) | |
| Power steering fluid level (Low) (for 3UR-FE) | ||
| Power steering fluid level (Low) (for 1VD-FTV) | ||
| Front wheel alignment (Incorrect) (for 3UR-FE) | ||
| Front wheel alignment (Incorrect) (for 1VD-FTV) | ||
| Steering system joints (Worn) | - | |
| Suspension arm ball joints (Worn) | ||
| Steering column (Binding) | - | |
| Power steering vane pump (for 3UR-FE) | ||
| Power steering vane pump (for 1VD-FTV) | ||
| Power steering link assembly | ||
| Poor return | Tires (Improperly inflated) | |
| Front wheel alignment (Incorrect) | ||
| Steering column (Binding) | - | |
| Power steering link assembly | ||
| Excessive play | Steering system joints (Worn) | - |
| Suspension arm ball joints (Worn) | ||
| Intermediate shaft, sliding yoke (Worn) | - | |
| Front wheel bearing (Worn) | ||
| Power steering link assembly | ||
| Abnormal noise | Power steering fluid level (Low) (for 3UR-FE) | |
| Power steering fluid level (Low) (for 1VD-FTV) | ||
| Steering system joints (Worn) | - | |
| Power steering vane pump (for 3UR-FE) | ||
| Power steering vane pump (for 1VD-FTV) | ||
| Power steering link assembly | ||
| Power steering system does not operate | IG power source circuit | |
| VFC power steering solenoid circuit | ||
| Power steering ECU communication circuit | ||
| Vehicle stability control system | ||
| Steering angle sensor | ||
| SFI system (for 3UR-FE) | ||
| ECD system (for 1VD-FTV w/ DPF) | ||
| ECD system (for 1VD-FTV w/o DPF) | ||
| Power steering ECU (for LHD) | ||
| Power steering ECU (for RHD) | ||
| When the vehicle is idling, steering effort is high (with the vehicle stopped) | Tire size and tire pressure | |
| Power steering fluid level and pressure (for 3UR-FE) | ||
| Power steering fluid level and pressure (for 1VD-FTV) | ||
| Front wheel alignment | ||
| IG power source circuit | ||
| VFC power steering solenoid circuit | ||
| Power steering ECU communication circuit | ||
| Steering angle sensor | ||
| Power steering ECU (for LHD) | ||
| Power steering ECU (for RHD) | ||
| Even if vehicle speed increases, steering effort does not increase | VFC power steering solenoid circuit | |
| Power steering ECU communication circuit | ||
| Vehicle stability control system | ||
| Power steering ECU (for LHD) | ||
| Power steering ECU (for RHD) | ||
| Power steering warning light is abnormal | Power steering warning light circuit | |
| Drive mode does not change | Drive mode select switch circuit |