The repair of power steering system faults requires targeted measures based on specific issues. First, check the power steering fluid level. If it is below the standard, replenish or replace it with specified hydraulic oil (such as ATF Dexron III or dedicated steering fluid). If the fluid level is adequate but steering feels heavy with abnormal noises, verify whether the steering pump pressure falls below the normal range of 8-10 MPa, or examine if the belt tension is within the 5-7 mm deflection range. For Electronic Power Steering (EPS) systems, use a diagnostic scanner to retrieve fault codes, prioritizing inspection of the torque sensor (standard signal voltage typically 0.5-4.5V) and steering motor resistance (generally 0.1-0.3Ω for most vehicles). Mechanical components require examination of tie-rod end play (replace if exceeding 1.5mm) and steering gear rack wear. Notably, certain Malaysian models post-2020 employ steer-by-wire technology with redundant circuitry, extending system self-diagnosis duration to 15 seconds. A "PS Warning" display without substantive faults may indicate incomplete initialization. Complex faults should be referred to certified technicians. Basic inspection labor costs approximately 80-150 MYR, while steering pump assembly replacement ranges from 800-2000 MYR depending on vehicle model.
