Is There a Charge for Checking Fault Codes at a 4S Shop?
2 Answers
Whether checking fault codes at a 4S shop incurs a charge generally depends on the following two aspects: 1. If the vehicle is within the warranty period, fault detection at the 4S shop is usually free of charge. 2. If the warranty period has expired, fault detection at the 4S shop usually requires a fee. Below are the common practices of 4S shops when a vehicle experiences a fault: (1) Technicians typically use a diagnostic computer to read the fault codes first. The electronic systems in modern vehicles are highly advanced. If a fault occurs in any part of the car, the computer will generate a fault code. Technicians can read these codes with a diagnostic computer, which helps them quickly identify the cause and location of the fault. (2) If the fault code cannot be read with the computer, the technicians at the 4S shop will assess the possible faulty parts based on the symptoms described by the owner. They will then conduct a test drive and finally troubleshoot the issue.
Last time I went to the Honda 4S shop to check the engine warning light, they charged me 200 yuan for diagnostics right after the warranty expired. The technician plugged in the diagnostic computer and got the result in ten minutes, telling me it was a faulty oxygen sensor. Actually, I later heard from a friend at a repair shop that some shops can offset the diagnostic fee against subsequent repair costs, but you need to negotiate this in advance. My advice is to call and clarify before going, unlike me who foolishly drove there directly. If the warning light is flashing like crazy, don't try to save money—it could be a serious problem.
