Can You Drive with the OBD Light On?

[VonJesse]

In general, an illuminated OBD light rarely prevents a car from starting, meaning the vehicle can still be driven. However, it's important to note that in regions like Beijing, if the owner does not promptly address excessive emissions, a universal diagnostic tool can detect the mileage driven after the light came on during an inspection, potentially leading to penalties during the annual vehicle inspection. More details are as follows: 1. The most important function of the OBD system is to continuously monitor whether the vehicle's emissions exceed standards based on the engine's operating conditions, issuing an immediate warning if they do. 2. There are many reasons that can trigger the OBD light, primarily related to vehicle emission faults.