Is it necessary to go to a 4S shop to clear the fault code?
2 Answers
Clearing fault codes does not necessarily require going to a 4S shop. Fault codes: Automotive fault codes are the codes reflected by the vehicle's computer ECU after analyzing a fault. Generally, fault codes are caused by sensor malfunctions or poor sensor performance, but some mechanical faults cannot be read by the ECU. When a car engine malfunctions, the diagnostic computer will display the fault code after detection. Through this code, maintenance personnel can accurately locate the faulty component and proceed with repairs. Solutions: Check for open or short circuits in the wiring connecting the ignition switch, ECU, fault warning light (CHECK), and communication interface. The ECU may malfunction, causing abnormal self-diagnosis output signals. The fault warning light (CHECK) or communication interface may also be damaged.
I'm quite qualified to speak on this issue, as I did thorough research when my car's engine warning light came on last time. Actually, you don't necessarily need to go to a 4S shop to clear trouble codes - many auto repair shops now have professional diagnostic tools, with basically the same operation procedures as 4S shops, but saving half the labor cost. For example, at the chain quick-service shop I frequent, they can read OBD data with their own equipment and only charge 50 yuan for code clearing. Of course, if your car is still under warranty, prioritizing a 4S shop is wise since it involves warranty records. But it's important to note that simply clearing codes is just a temporary fix - the key is having the technician use the diagnostic tool to properly identify the root cause of the issue. Otherwise, the light might turn off only to come back on in a couple days, which would be more troublesome.
