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POWER STEERING SYSTEM (for 1VD-FTV with DPF) PROBLEM SYMPTOMS TABLE

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Tip:
  • 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.

Table 1. Power Steering System
Symptom Suspected Area See page
Hard steering Tires (Improperly inflated)

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Power steering fluid level (Low)

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Front wheel alignment (Incorrect)

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Steering system joints (Worn) -
Suspension arm ball joints (Worn)

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Steering column (Binding) -
Power steering vane pump

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Power steering link assembly

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Poor return Tires (Improperly inflated)

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Front wheel alignment (Incorrect)

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Steering column (Binding) -
Power steering link assembly

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Excessive play Steering system joints (Worn) -
Suspension arm ball joints (Worn)

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Intermediate shaft, sliding yoke (Worn) -
Front wheel bearing (Worn)

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Power steering link assembly

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Abnormal noise Power steering fluid level (Low)

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Steering system joints (Worn) -
Power steering vane pump

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Power steering link assembly

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Power steering system does not operate IG power source circuit

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VFC power steering solenoid circuit

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Power steering ECU communication circuit

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Vehicle stability control system

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Steering angle sensor

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ECD system

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Power steering ECU

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When the vehicle is idling, steering effort is high (with the vehicle stopped) Tire size and tire pressure

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Power steering fluid level and pressure

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Front wheel alignment

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IG power source circuit

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VFC power steering solenoid circuit

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Power steering ECU communication circuit

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Steering angle sensor

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Power steering ECU

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Even if vehicle speed increases, steering effort does not increase VFC power steering solenoid circuit

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Power steering ECU communication circuit

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Vehicle stability control system

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Power steering ECU

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Power steering warning light is abnormal Power steering warning light circuit

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