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 1GD-FTV) | ||
| Power steering fluid level (Low) (for 1GR-FE) | ||
| Power steering fluid level (Low) (for 2TR-FE) | ||
| Power steering fluid level (Low) (for 1KD-FTV) | ||
| Drive belt (Loose) (for 1GD-FTV) | ||
| Drive belt (Loose) (for 1GR-FE) | ||
| Drive belt (Loose) (for 2TR-FE) | ||
| Drive belt (Loose) (for 1KD-FTV) | ||
| Front wheel alignment (Incorrect) | ||
| Steering system joints (Worn) | - | |
| Suspension arm ball joints (Worn) | ||
| Steering column (Binding) | - | |
| Power steering vane pump (for 1GD-FTV) | ||
| Power steering vane pump (for 1GR-FE) | ||
| Power steering vane pump (for 2TR-FE) | ||
| Power steering vane pump (for 1KD-FTV) | ||
| Rack and pinion power steering gear | ||
| Poor return | Tires (Improperly inflated) | |
| Front wheel alignment (Incorrect) | ||
| Steering column (Binding) | - | |
| Rack and pinion power steering gear | ||
| Excessive play | Steering system joints (Worn) | - |
| Suspension arm ball joints (Worn) | ||
| Intermediate shaft, Sliding yoke (Worn) | - | |
| Front wheel bearing (Worn) | ||
| Rack and pinion power steering gear | ||
| Abnormal noise | Power steering fluid level (Low) (for 1GD-FTV) | |
| Power steering fluid level (Low) (for 1GR-FE) | ||
| Power steering fluid level (Low) (for 2TR-FE) | ||
| Power steering fluid level (Low) (for 1KD-FTV) | ||
| Steering system joints (Worn) | - | |
| Power steering vane pump (for 1GD-FTV) | ||
| Power steering vane pump (for 1GR-FE) | ||
| Power steering vane pump (for 2TR-FE) | ||
| Power steering vane pump (for 1KD-FTV) | ||
| Rack and pinion power steering gear | ||
| Power steering system does not operate | IG power source circuit | |
| VFC power steering solenoid circuit | ||
| Power steering ECU communication circuit | ||
| Vehicle stability control system (for Hydraulic Brake Booster) | ||
| Vehicle stability control system (for Vacuum Brake Booster) | ||
| Steering angle sensor | ||
| ECD system (for 1GD-FTV) | ||
| ECD system (for 1GD-FTV with Urea SCR System) | ||
| SFI system (for 2TR-FE) | ||
| SFI system (for 1GR-FE) | ||
| ECD system (for 1KD-FTV) | ||
| Power steering ECU | ||
| 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 1GD-FTV) | ||
| Power steering fluid level and pressure (for 1GR-FE) | ||
| Power steering fluid level and pressure (for 2TR-FE) | ||
| Power steering fluid level and pressure (for 1KD-FTV) | ||
| Front wheel alignment | ||
| IG power source circuit | ||
| VFC power steering solenoid circuit | ||
| Power steering ECU communication circuit | ||
| Steering angle sensor | ||
| Power steering ECU | ||
| Even if vehicle speed increases, steering effort does not increase | VFC power steering solenoid circuit | |
| Power steering ECU communication circuit | ||
| Vehicle stability control system (for Hydraulic Brake Booster) | ||
| Vehicle stability control system (for Vacuum Brake Booster) | ||
| Power steering ECU | ||
| Steering force does not change even though an adaptive variable suspension (AVS) mode switching operation is performed | Air suspension system | |
| CAN communication system (for LHD with Entry and Start System) | ||
| CAN communication system (for LHD without Entry and Start System) | ||
| CAN communication system (for RHD with Entry and Start System) | ||
| CAN communication system (for RHD without Entry and Start System) | ||
| Power steering ECU | ||
| Power steering warning light is abnormal | Power steering warning light circuit |