For 1990-2009 cars

Problem | Action
--- | ---
Power steering hydraulic system failure | Inspect power steering system. Repair as necessary. Refer to Power Steering System Test in Steering Wheel and Column Tilt.
Alignment out of adjustment | Inspect wheel alignment , adjust as necessary. Refer to Wheel Alignment Measurement in Wheel Alignment.
Variable effort system malfunction | Inspect varible effort steering system, Repair as necessary. Refer to Variable Effort Steering Diagnosis in Varible Effort Steering System.