Why does the steering assist system warning light come on in the Sagitar?

[LukasAnn]

There are many reasons that can cause the steering assist warning light to illuminate, often accompanied by the following symptoms: heavy steering, abnormal steering noise, steering wheel vibration, poor steering wheel return ability, etc. Below are the related causes of power steering failure: 1. Air in the steering system: The presence of a large amount of air in the power steering system can cause abnormal car steering. 2. Foreign objects in the hydraulic lines: Foreign objects in the steering hydraulic lines can cause the steering pump flow control valve to stick. 3. Loose connections: Loose connections in the steering assist system can lead to steering fluid leakage. 4. Excessive wear of the piston cylinder: Excessive wear of the steering gear piston cylinder, poor sealing of the oil seal, or sticking/damage of the control valve.

[SanCharlotte]

Last time I drove a Sagitar, I also encountered the issue of the power steering warning light coming on. The steering wheel suddenly became heavy, and I almost couldn't turn it. I immediately pulled over to check and found that it might be a problem with the power steering system. Nowadays, Sagitars mostly use electric power steering. Common causes include a faulty steering angle sensor, power supply issues with the assist motor, or a malfunctioning control module. Especially for older vehicles, loose or water-damaged wiring connectors can easily cause this problem. Once, my friend's car had a short circuit due to rainwater seeping into the connector. If you continue driving with the light on, the steering gear will wear out faster, making repairs more expensive. It's best to immediately take it to a repair shop and use a diagnostic tool to read the fault codes and confirm the cause.

[Rex]

Speaking of the power steering warning light, my 8-year-old Sagitar had it illuminated twice last year. The electric power steering system is actually quite complex - there's a torque sensor hidden under the steering wheel that commands the motor to provide additional force when tire resistance is high during turns. If this sensor fails, the ECU triggers the warning light. Additionally, unstable battery voltage or insufficient alternator output can cause the power steering system to enter protective shutdown. I noticed particular difficulty during low-speed turns, which turned out to be caused by oxidation in the steering column wiring harness connector. My advice is don't rush to replace the entire assembly - have your mechanic first check power supply and signal lines with a multimeter. Minor issues like this won't cost much to fix.

[OEli]

That day, while driving my child to school, the turn signal suddenly lit up, and the steering wheel immediately became as heavy as lifting a brick. I was in the city at the time and had to rely on sheer arm strength to keep driving. This kind of failure is most feared when emergency avoidance is needed, as it's impossible to turn the wheel. Later, I asked a mechanic and learned that for older Sagitars with hydraulic power steering, it might be due to a lack of power steering fluid, but for newer models with electronic power steering, it's mostly an electronic issue. The most common problem they encounter is a malfunction in the steering control module program, which can be fixed by disconnecting the power and restarting. If restarting doesn't work, it's likely a faulty torque sensor or motor. Once, my neighbor's car had water ingress that caused the module to burn out, costing nearly two thousand yuan to repair.