Introduction to the Function of the Relay Below the Refine Steering Wheel
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The relay located below the Refine steering wheel records and displays the OBD (On-Board Diagnostics) data of the vehicle's computer, which includes a driving record function. It can provide operational data for various systems of the vehicle, allowing users to check the working status of each system. Generally, some data can be read through the dashboard, but there is much more data that cannot be displayed. The data recorded by OBD is more comprehensive than what is shown on the dashboard. Here is more detailed information about OBD: 1. Quickly identify fault points: OBD can read a variety of professional data such as throttle opening, air-fuel ratio, and the opening degree of the accelerator and brake pedals, as well as retrieve fault codes to quickly locate issues. 2. Fault analysis: Through data calculation, OBD can analyze faults in electronic components within the engine's electronic control system.
The relay under the steering wheel is a small but crucial component. Through years of auto repair experience, I've found it primarily controls turn signals and headlight switches. Simply put, it's an electromagnetic switch - when current needs to reach these lights, the relay closes to allow electricity flow and illuminate the filaments. During power surges or circuit faults, it automatically cuts off to prevent wire burns. In JAC Refine vehicles, it's conveniently located behind the removable panel beneath the steering wheel as a black box. Faulty relays cause symptoms like non-blinking turn signals or flickering headlights, creating dangerous driving situations especially during turns when other drivers can't discern your intentions, potentially causing accidents. I recommend having mechanics inspect contact points for cleanliness and wear every six months. Replacement costs just dozens of RMB - an affordable investment for worry-free safety.
As a car enthusiast, I find it quite fascinating how the relay under the steering wheel controls the turn signals. It acts like a bodyguard in the circuit, preventing the filament from burning out or wires from overheating when there's a sudden current surge. Located in a small hidden compartment next to the steering column, it's not difficult to open. I've tried taking it apart to inspect the contacts inside—if they're dusty or worn out, poor contact can occur, causing the turn signals to delay or fail entirely, significantly increasing nighttime driving risks. Upgrading to a high-quality relay can better support LED conversion lights and improve circuit stability. Remember to periodically check for overheating or unusual noises. This small component greatly impacts the driving experience, and repairs aren't expensive—if you're handy, you can fix it yourself.
